Web, Mobile, API & Database Testing

The problem

A feature that works on one browser, device, or API path can fail elsewhere - or look fine in the UI while the wrong data is written to the database. Without dedicated coverage across web, mobile, API, and data layers, compatibility issues and data defects are often discovered by users.

What’s at risk without it

• Layout, functionality, or performance issues on specific browsers or devices
• API contract mismatches between frontend and backend
• Broken integrations when a third-party or internal API changes
• Inconsistent behavior across iOS/Android or desktop/mobile web
• Incorrect or incomplete data written through application flows
• Broken referential integrity, failed migrations, or unreliable reports
• Untested error handling when an API call fails or times out

What we test

Web and mobile

• Core functional flows across major browsers and versions
• Responsive and mobile web behavior across device sizes
• Native and hybrid mobile app functionality (iOS/Android)
• Authentication, authorization, and session handling across surfaces

API

• REST/API request and response validation, including error and edge cases
• Integration points between frontend, backend, and third-party services
• Contract, status-code, and error-handling validation independent of the UI

Database

• CRUD operations against expected business rules
• Data integrity, constraints, relationships, and nullability rules
• Schema changes and migration scripts before release
• Data consistency between UI, API, and database after key transactions
• Stored procedures, functions, views, and triggers where used

Our approach

We map your product’s supported browsers, devices, API surface, and critical data flows, then design coverage that reflects real usage. API and database testing are treated as their own disciplines - validating contracts, stored data, and integrity - not just checked incidentally through the UI.

1. Define supported browser, device, API, and data matrix
2. Functional test design per surface (web, mobile, API, database)
3. Execution across the defined matrix, with defect logging
4. API-level validation of requests, responses, and error handling
5. Database checks for integrity, CRUD outcomes, and migrations
6. Regression coverage ahead of releases

Deliverables

• Cross-browser/device compatibility report
• API test results with request/response validation
• Database findings on integrity, CRUD, migration, and consistency issues
• Defect reports with reproduction steps and evidence
• Prioritized list of compatibility, integration, and data issues

Suitable for

Products with a meaningful web or mobile footprint, API-driven architecture, or important backend data - including reporting, billing, inventory, healthcare workflows, or any system where incorrect stored data creates business risk.

FAQs

Do you test native mobile apps, mobile web, or both?

Both, depending on what your product ships. We scope the test matrix to match your actual supported platforms.

How do you decide which browsers and devices to cover?

Based on your real usage data where available, or a sensible default matrix of current major browsers and common device sizes when analytics aren’t available yet.

Can API testing be done independently of the frontend?

Yes. We test APIs directly against their contracts (requests, responses, status codes, error handling) rather than relying solely on what’s visible through the UI.

Is database testing the same as performance testing the database?

No. Performance testing measures how the system behaves under load. Database testing focuses on correctness: whether data is stored, related, migrated, and retrieved as expected.

Do you need direct database access?

Usually yes, for meaningful database testing. Access can be limited to a staging or test environment with agreed controls.