Software Testing That Finds Critical Problems Before Your Customers Do
GullySystem provides manual and automated QA for web, mobile and API software — test plans, regression suites and defect reports with evidence — for businesses preparing a launch, a major release or a vendor handover.
- We test software we did not build
- Every defect comes with steps, evidence and a severity
- Test cases and automation scripts stay yours
We test software for distributors, clinics, schools, manufacturers, logistics operators, e-commerce brands and SaaS teams across India — customer portals, Android and iOS apps, checkout flows and the APIs and databases behind them. Some of that work is a full test cycle before a first launch. Some is a regression suite for a product that ships every fortnight. And some is independent acceptance testing for a business being asked to approve, sign off and pay for another vendor’s delivery.
Is Your Software Actually Tested, or Just Clicked Through Before Release?
Testing Is Whoever Is Free on the Day
An hour before release, the developer who wrote the feature opens it, tries the path they had in mind, and it works. Nobody tries the wrong date, the blank field or the back button, because the person testing already knows how the software is supposed to be used. The gaps reach the customer first.
Every Release Breaks Something That Used to Work
A discount rule is changed and the invoice total goes wrong. A login screen is redesigned and the mobile app stops accepting the OTP. Nothing checked the old features after the new one was added, so your team now dreads releases and postpones improvements the business actually needs.
Bugs Are Reported as “It Is Not Working”
Issues arrive as one line on WhatsApp with no screenshot, no order number and no idea which phone it happened on. The developer cannot reproduce it, replies that it works at their end, and days go by on messages before anyone has looked at the actual problem.
The One Screen Size Nobody Tested On
The site was built on a large laptop screen. On a mid-range Android handset the payment button sits below the fold, or the date picker refuses to open. Orders simply stop at that step, and because nobody complains, the loss never appears as a support ticket — only as quiet, unexplained drop-off.
A Demo Is the Only Proof You Have Been Given
The vendor drives the walkthrough, on their own laptop, with data they prepared, and then asks for sign-off and the balance payment. Nobody has independently checked whether the remaining requirements were built, whether the calculations are right, or what happens when two users act at the same moment. Approval becomes a matter of trust rather than evidence.
The Software Only Behaves With Clean Data
Everything works on freshly created test records. Then real data arrives — a customer with no GST number, a decade-old ledger, an item code with a space in it, a returned order — and screens fail or show wrong totals in the first week of live use, in front of the staff you just trained.
No List of What Was Tested and What Is Still Open
Asked whether the release is safe, the honest answer is that it seemed fine. Nobody can produce what was checked, what passed, what is still broken and how serious those open items are, so the launch date gets chosen by the calendar rather than by the condition of the software.
None of this needs a larger development team. It needs the journeys your business earns money on written down, tested the same way before every release, and recorded — so that going live, or paying a vendor, becomes a decision you can defend.
Testing That Produces Evidence, Not Opinions
We work out which journeys actually matter to your business, write them as test cases anyone can follow, and run them across the browsers, devices and data your customers really bring. Every defect is reported with the steps to reproduce it, the evidence and a severity, and the ones worth repeating become an automated suite you keep.
The Journeys That Carry Money Come First
Order to invoice, registration to payment, booking to confirmation. We rank what to test by what it costs you when it fails, instead of spreading effort evenly across every screen.
The Same Checks, Every Release
A regression set covers what already works, so a change in one place is proved not to have quietly broken another before it reaches customers.
Defects Written to Be Fixed
Steps, environment, test data, expected against actual, screenshot or recording, and a severity your team agreed. No developer should have to guess what you saw.
What Changes Once Testing Is Systematic
Focus on business value before discussing technology. Here is what your team accomplishes in week one.
Problems Found While They Are Still Cheap
A defect caught on staging costs a conversation and a fix. The same defect found by a customer costs a refund, an angry message, a developer working at night and a reputation you spend months rebuilding.
Your Critical Journeys Exist on Paper
What the software must do is recorded as test cases with expected results, so testing stops depending on who remembers the rules and a new team member can run the same checks.
Old Features Stop Breaking Quietly
A regression suite is re-run before each release, so a change to pricing, tax or permissions is checked against billing, reporting and the mobile app rather than assumed to be safe.
Defect Reports Developers Can Act On
Each issue arrives with steps, data, environment, evidence and severity, which ends the days lost to “not working” on one side and “works at my end” on the other.
Verified on the Handsets Your Own Traffic Shows
Checked on the Android versions, screen sizes and browsers that appear in your own traffic and in your own staff’s hands, not only on a fast laptop in an office.
Release and Payment Decisions You Can Defend
Go-live approval, or a final payment to a vendor, rests on a written summary: what was tested, what passed, what failed, what is still open and how serious it is.
What QA and Software Testing Includes
Everything required from operational discovery to production deployment and long-term maintenance.
QA Strategy and Test Planning
We review the application and your business risks, then produce a test plan stating what is in scope, which browsers and devices are covered, which environments are used and what acceptance looks like.
Test Scenario and Test Case Design
Business journeys broken into numbered cases with preconditions, steps, test data and expected results, written in plain language so your own staff can run and verify them later.
Functional and Exploratory Testing
Structured checks against the agreed cases, plus timed exploratory sessions where an experienced tester deliberately works against the intended path to find what a script would never cover.
Regression and Smoke Testing
A maintained set covering existing behaviour, run before each release, with a short smoke pass that confirms the essentials are alive immediately after a deployment.
Web and Responsive Testing
Behaviour and layout verified across Chrome, Safari, Firefox and Edge and across phone, tablet and desktop widths, including forms, tables, printing and file downloads.
Mobile Application Testing
Android and iOS applications tested on real handsets for install and upgrade, permissions, notifications, background and offline behaviour, interrupted calls and low storage.
API and Database Testing
Endpoints tested for valid, invalid, missing and duplicate input, authentication and permission rules, error codes and repeated calls — with the resulting rows in the database checked, not just the response on screen.
Integration and End-to-End Testing
Flows that cross systems — payment gateway, WhatsApp or SMS, courier, accounting — exercised through sandbox accounts, including what the software does when the other side times out or replies with an error.
Test Automation Framework Development
Automated suites for the checks worth repeating, built with a structure your developers can read and extend, wired to run on a schedule or before a release rather than by hand.
User Acceptance Testing Support
We prepare the UAT script, the data and the environment, sit with your department users while they test, and record their findings in the same defect format instead of loose feedback.
Usability and Accessibility Checks
Reviews of labels, error messages, keyboard navigation, contrast and screen-reader behaviour, so the software is workable for staff and customers who are not fluent in it.
Release-Readiness and Independent Acceptance Testing
A verification pass against the agreed requirements before launch or before a vendor handover, ending in a written summary of coverage, results and open risks for whoever signs the approval.
Where Testing Earns Its Place
Real-world business processes we configure and automate.
Distributor: Every Rate Slab and Credit Limit, Not Only the Common One
A distributor is opening online ordering to its dealer network, where each dealer sits on a different rate slab with a different credit limit. Testing works through the pricing and slab combinations, the credit-limit block, part orders, cancellations and two dealers claiming the last stock at the same moment — the cases that turn into credit notes and phone calls if they are met for the first time in production.
Clinic Group: One Slot Booked Twice, on the Tablet at the Front Desk
A multi-centre clinic is putting online appointments alongside its counter billing. Testing pushes at the same slot from two devices, cancels and reschedules, marks a doctor on leave mid-day, checks that the confirmation message matches what was booked, and runs the front-desk screens on the older tablets the receptionists actually hold — because a failure here is a patient standing at the counter, not a support ticket.
Online Brand: The Impatient Second Tap That Charges Twice
A D2C brand is heading into the weeks that carry most of its year. Testing walks the full path on real handsets: coupon and combination rules, address and pincode validation, wallet, UPI and card sandboxes, a payment that fails at the bank page, an abandoned attempt resumed later, and the exact case where a second tap on a slow screen produces a second order and a second charge.
Manufacturer: Jobs Closed in a Basement and Synced Hours Later
Service engineers close jobs on company phones of several models and Android versions, often in basements and rural sites with no signal. Testing covers job capture offline, photo and signature attachment, sync when the network returns, duplicate submissions after a retry, and an app upgrade with unsent jobs still sitting on the device.
School: Concessions, Part Payments and a Receipt Number That Must Not Repeat
A school is moving fee collection online. Testing covers sibling and category concessions, part payments, late fees, receipt numbering, a duplicate payment raised against one invoice, and what a parent sees when the bank page fails midway — with the reconciliation checked in the accounts data, not only on the confirmation screen.
Professional Firm: A Vendor Build Checked Against the Signed Requirements
A firm has been asked to approve a vendor’s delivery and release the balance amount. We test the build against the signed requirements and state what is complete, what is partly built and what does not work, with evidence for each — giving the firm a factual basis for the handover conversation instead of an argument about impressions.
Is This Service Right for Your Business?
We partner with established businesses that have outgrown manual processes and want reliable systems.
Businesses Approaching a Launch or a Major Release
Teams putting a portal, app or store in front of customers for the first time, or making a change large enough that a mistake would be visible to everyone at once.
Companies Paying a Vendor for a Delivery
Businesses expected to sign off and release the final payment, who want an independent check against the agreed requirements before the handover rather than after it.
Product and SaaS Teams Shipping Regularly
Small product teams where developers test their own work, releases keep reopening old defects, and there is no suite that proves last month’s features still behave.
Software Where Money or Records Move
Billing, fee collection, payroll, inventory valuation, patient or student records — where a wrong figure is not an inconvenience but a refund, a dispute or a compliance problem.
Businesses With a Season They Cannot Miss
Admissions, festival sales, tender deadlines, year-end billing. When one period carries a large share of the year, a release that misbehaves during it cannot be corrected later.
When Formal Testing Is Not What You Need Yet
If the software is a small internal tool used by a few people and changes once a quarter, a written checklist your own staff run is enough. If the build is still half-finished, testing only produces a long list nobody can act on — complete it first. And automating screens that are being redesigned every week wastes money, because the scripts are rewritten as fast as they are built. We will say so instead of selling a cycle you do not need.
Enterprise Capabilities in Plain Business Terms
Risk-Based Test Prioritisation
Coverage decided by business impact and likelihood of failure, so the limited testing budget goes where a defect would hurt most.
Documented Test Cases
Numbered scenarios with preconditions, steps, data and expected results, written for a non-technical reader to run.
Defect Reports With Evidence
Steps to reproduce, environment, test data, expected against actual, screenshot or screen recording, and an agreed severity.
Severity and Priority Agreement
A shared definition of what blocks a release and what can go out with a note, decided with you before the first defect is raised.
Regression Suite Maintenance
The set of checks that grows with each release, kept current as features change instead of quietly going stale.
Cross-Browser and Responsive Coverage
Chrome, Safari, Firefox and Edge across phone, tablet and desktop widths, chosen from the browsers your own visitors use.
Real Device Testing
Physical Android and iOS handsets across versions and screen sizes, extended with device cloud services when broader coverage is needed.
API and Contract Testing
Request and response checks including invalid input, permissions, error codes and repeated calls, saved as a collection you can re-run.
Database Verification
Confirming that what the screen reports actually reached the tables — correct values, no orphan rows, no duplicate entries after a retry.
Test Data Preparation
Realistic data sets including the awkward records — old customers, missing fields, returns, closed accounts — built or masked from a copy rather than taken from live.
Automated Runs in the Release Pipeline
Suites triggered on a build or a schedule, with results published where your team already looks.
Release-Readiness Summary
One page stating what was covered, what passed, what failed, what remains open and at what severity, for the person taking the go or no-go call.
Our Structured 6-Step Delivery Process
A transparent path from your first conversation to a reliable production release.
Discovery and Risk Review
We walk the application with the people who use it and identify the journeys that carry money, compliance or customer trust. From you we need a working build on a stable environment, a short list of what the business cannot afford to have broken, and any requirement documents or user stories that exist.
Test Plan and Scope Agreement
We produce the test plan: journeys in and out of scope, browser and device matrix, environments, test types, severity definitions and what acceptance means. You sign this off, and you confirm the device and browser list against your own traffic rather than a generic assumption.
Test Case Design and Data Setup
We write the cases and prepare the data, including the difficult records that break software in week one. From you we need login credentials for each user role, sandbox or test accounts for payments, messaging and courier partners, and permission to use a masked copy of realistic data.
Test Execution and Defect Reporting
We execute the cases, run exploratory sessions and log every defect with evidence and severity in your tracker or ours. From you we need one developer contact who receives the defect list, and an agreed rhythm for fixes so testing is not waiting on an inbox.
Retesting, Regression and Automation
Each fix is retested and the surrounding features re-run so the correction has not broken something else. We agree which stable, high-value cases become automated scripts. From you we need notification when a fix is deployed and to which environment.
Release Readiness, Handover and Training
We issue the release-readiness summary with open risks stated plainly, hand over the test cases, data and automation scripts with instructions to run them, and train whoever will own testing next. From you we need the name of the person taking the go-live decision, and whether you want the suite maintained after launch.
What You Receive Upon Project Completion
Everything required to run, maintain, and expand your software without vendor lock-in.
Connects With the Systems You Already Rely On
We build bridges between your software so you don't have to replace functional existing tools.
Issue and Project Tracking
- Jira
- Linear
- GitHub Issues
- ClickUp
- Trello
- Shared defect sheets
Build and Release Pipelines
- GitHub Actions
- GitLab CI
- Bitbucket Pipelines
- Jenkins
Devices and Browsers
- Real Android and iOS handsets
- Device cloud services
- Chrome
- Safari
- Firefox
- Edge
Sandboxes for Connected Services
- Razorpay, Cashfree and PayU test modes
- UPI test collections
- WhatsApp Business API sandbox
- SMS and email test accounts
- Courier partner sandboxes
Business Systems Under Test
- Tally and ERP test companies
- Zoho CRM sandbox
- Shopify and WooCommerce staging
- Custom portals and admin panels
Selected for Reliability, Speed, and Longevity
Technology chosen to match your operational scale and long-term maintainability.
Web Automation
Mobile Automation
API and Data
Load and Reliability Checks
Reporting and Pipelines
Why Business Owners Choose GullySystem
We Test the Business Rule, Not Just the Screen
A screen that saves without error can still write the wrong tax, the wrong ledger or a duplicate row. We check what happened in the data, because that is where the expensive mistakes hide.
Independent of the People Who Built It
We routinely test software written by another company or by your own developers. Nobody is marking their own homework, and the report says what it found without softening it.
Defects Written for One Reading
Steps, data, environment and evidence in every report. Our measure of a good defect is that a developer can reproduce it without messaging anyone.
Automation Only Where It Repays
Scripts are worth building for stable, repeated, high-value checks. For screens still being redesigned, careful manual testing is cheaper, and we will tell you which is which.
Coverage Based on Your Traffic
The device and browser list comes from your own analytics and your staff’s handsets, so the effort goes to what your customers actually hold.
The Suite Belongs to You
Test cases, test data, automation scripts and API collections are handed over with instructions to run them, so your team or your next developer can continue without us.
Flexible Engagement Options
Choose an engagement model that matches your operational scope, budget, and timeline.
Pre-Launch Test Cycle
A defined cycle over the agreed journeys, browsers and devices, ending in a defect report and a release-readiness summary, with a retest pass once your team has fixed what was found.
Independent Acceptance Testing
Verification of a vendor’s delivery against the agreed requirements, with a documented statement of what is complete, what is partial and what does not work, for use in the handover conversation.
Regression Suite and Automation Build
We construct the regression set and automate the checks worth repeating, wire them into your release process and hand over scripts your developers can maintain.
Ongoing QA Support
A tester working to your sprint or release rhythm — new features tested, regression re-run, suite kept current — for teams releasing regularly without QA of their own.
Frequently Asked Questions
Straightforward answers to the questions owners ask before getting started.
Can you test software that another company built?
Yes, and it is a large part of this work. We do not need to have written the code to test it — we need a working build, credentials for each user role and a clear statement of what the software is supposed to do, whether that is a requirement document, a proposal or a walkthrough with your team. Being independent of the build team is usually the point: findings are reported as they are, without anyone protecting their own work.
Do you provide both manual and automated testing?
Both, and the split is decided per project rather than sold as a package. Manual and exploratory testing finds the unexpected, handles anything visual or judgement-based, and is the right choice for features still changing. Automation is for stable, repeated, high-value checks — a regression suite, an API collection, a smoke test before release — where it pays for itself over many runs. Automating a screen that is redesigned every fortnight costs more than it saves, and we will say so.
Which browsers and devices will you cover?
The list comes from your data, not a standard sheet. We look at the browsers and Android and iOS versions in your own analytics, the handsets your staff use, and the markets you sell into, then agree a matrix in the test plan. Testing runs on real devices for the primary combinations, extended with device cloud services where broader coverage is needed. Anything outside the agreed matrix is stated as out of scope so there is no confusion afterwards.
Do you fix the defects you find?
Our default role is to find, prove and rank defects — your developers or your vendor fix them, and we retest. This separation is deliberate: it keeps the testing independent and stops the conversation turning into a dispute over who broke what. Where you would rather one team did both, we can fix under a separate development or maintenance scope, quoted after the defects are known, and the testing report stays a separate document either way.
Can testing fit our sprint cycle or release schedule?
Yes. For teams releasing regularly, we work to your rhythm: new features tested as they land on staging, regression re-run before each release, and a short smoke pass after deployment. What matters more than the calendar is having a stable environment to test on and a build that is genuinely ready — testing a half-deployed environment produces a defect list that is mostly noise and wastes everyone’s cycle.
Do you retest fixes, and do you re-run everything else?
Both, and they are different things. Retesting confirms the specific defect is actually resolved on the build where it was fixed. Regression re-runs the surrounding features that the fix could have disturbed, because a correction in pricing can affect invoices, reports and the mobile app. Each cycle of retest and regression is recorded, so you can see how the release improved from one build to the next rather than taking it on trust.
Will we receive documented test cases, and do we own the automation scripts?
Yes to both. You receive the test plan, the numbered scenarios and cases with expected results, the test data, the defect reports and the release-readiness summary. Automation scripts and API collections are handed over with the source, the framework and written instructions to run and extend them. Nothing is held back to keep you dependent on us, and your own team or your next developer can pick the suite up.
Do you need access to our live production data?
No, and we prefer not to have it. Realistic data matters because clean records hide defects, so we work from a masked copy where names, phone numbers and financial values are replaced while the shape and awkwardness of the records are preserved, or we construct the data set ourselves. Testing happens on staging or a test environment, sandbox accounts are used for payments and messaging, access is limited to the people on your project, and we sign a non-disclosure agreement before we start.
What drives the cost of a testing engagement?
Cost follows coverage and repetition, not the size of your application. The main drivers are how many journeys and user roles are in scope, how many browser and device combinations are required, whether real devices or a device cloud are needed, how much of the work is automated rather than run once, how many integration sandboxes must be set up, and how many retest and regression cycles you expect before release. We give an itemised proposal after the risk review, with automation priced separately so you can start manual and add it later.
What decides how long the testing takes?
Duration depends mostly on the state of the build and the speed of fixes, not on the number of test cases. The factors are whether a stable test environment is ready, how quickly credentials and sandbox accounts are issued, how many defects the first pass finds and how fast they are fixed, how many devices are in the matrix, whether automation is being built at the same time, and how many retest cycles the release needs before it is clean enough to approve. The test plan sets out a schedule against those inputs.
Do you also test load and security?
Only to a practical level inside a functional engagement — the deeper work belongs to its own piece of work. Within a functional cycle we check basic response behaviour under a realistic number of concurrent users, and obvious exposures such as broken access between roles, data visible to the wrong user or unvalidated input. Capacity modelling and tuning under sustained traffic is performance engineering; penetration testing and secure code review is application security. We will tell you when what you need is one of those rather than a wider functional cycle.
What do you need from us to get started?
A working build, access for every role, a statement of correct behaviour, sandbox accounts and one developer contact. In detail: a build on a stable environment that is not being redeployed under us; login credentials for each user role; a statement of what the software should do, whether that is documents, user stories or a walkthrough with the person who knows the rules; sandbox or test accounts for payments, messaging and any courier or accounting integration; and a developer contact who receives the defect list. Beyond that, one person from the business who can settle the correct behaviour when the requirement is silent, because most disagreements in testing are business questions before they are technical ones.
Let’s Build the Right Software for Your Business
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Related Practices & Services
Performance Engineering
When the software works correctly but slows down or fails under real traffic, load testing and tuning are a separate piece of work.
Cybersecurity and Application Security
Penetration testing, secure code review and hardening for applications handling payments, personal data or regulated records.
DevOps, Deployment and Reliability
Staging environments, release pipelines and rollback paths, so the suites you build actually run before every deployment.
Software Maintenance, Support and Rescue
When testing reveals an application that needs an owner, we take over existing software, fix the defects and keep it maintained.