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Mobile app penetration testing in Chennai

Chennai's banks and fintechs ship apps to customers, and its manufacturers and distributors give apps to dealers and field engineers. BERRY9 tests the Android and iOS builds, what they keep on the phone and the API behind them, remotely from Hyderabad, our only office, and comes to Chennai by arrangement.

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Typical duration
5 to 10 working days
Testing
Manual, by engineers
Report
Executive + engineering
Delivery
Remote from Hyderabad, visits by arrangement

Last reviewed

01 / Local need

Why Chennai companies test their mobile apps

The app is the part of the system that leaves your control the moment it is published.

A bank or fintech in the city publishes an app that customers use for payments and statements, and its risk team or a partner asks for a mobile test report. A manufacturer in the auto and electronics belt hands dealers an ordering app, and a service company gives engineers an app for job cards that must work in basements and plants with poor signal. An IT exporter builds an app for a client abroad and is bound by contract to test it. These apps all keep something on the phone and send something to a server, and a tester can inspect both.

One decision is worth making before the test starts: which release the report should describe. Many Chennai teams publish an Android build first and an iOS build later, and dealers or field engineers may stay on an older version for months. We record the version tested, and if old versions are still in use, we recommend testing the oldest build that must keep working as well as the newest, because that is the one attackers will find. For the service itself, read the mobile application testing page; the Chennai overview is VAPT services in Chennai.

02 / Scope

Where our Chennai mobile work concentrates

Most of it falls into six kinds of app.

  • Banking and wallet apps

    Apps used for payments and statements. We test local storage, device binding, screen capture, tamper and root checks, and every request the app can send to the server.

  • Dealer ordering apps

    Apps that let dealers place orders and check stock. We test the login, what each dealer role can see, and whether one dealer can read another's prices or orders.

  • Field-service and job-card apps

    Apps for engineers that work offline and sync later. We test the local database, the sync calls and what a lost or rooted phone would expose.

  • Logistics and delivery apps

    Driver and delivery apps hold routes, customer addresses and proof-of-delivery photos. We test where that data is stored, shared and sent.

  • Client apps built by IT exporters

    Apps built for overseas clients. We test the build the client will publish, so the report matches the version in the store.

  • The API behind each app

    Most serious findings are on the server. We replay the app's calls directly, with and without a login, across users and roles.

03 / From our guide

From our guide: what an Android test covers and the tools

Buyers in Chennai often ask what a mobile test involves and which tools are used. This is how our checklist answers both.

What an Android test covers

The app package

  • Manifest and components. Exported activities, services, receivers and content providers that other apps can call, debuggable builds, and the backup flag that lets data be copied off the device.
  • Hardcoded secrets. API keys, tokens and passwords inside the app, which anyone can read by unpacking it.
  • Code protection. How easily the app can be decompiled and modified, and whether it detects tampering or a rooted device.

Data on the device

  • What is stored in shared preferences, databases and files, and whether it is encrypted with keys kept in the Android Keystore.
  • What reaches logs, screenshots, the clipboard and the recent-apps view.

Network traffic

  • Cleartext traffic, weak TLS settings and the network security configuration.
  • Certificate pinning, and whether it can be bypassed with a hooking tool.

Platform interaction

  • Deep links and app links that open sensitive screens, and intents that carry data.
  • WebViews that run JavaScript, load remote content or expose native functions.
  • Authentication and biometric prompts, and what happens after a session expires.

The API behind the app

Most serious mobile findings are on the server. A tester takes the requests the app makes and tests them directly for broken authorization, missing rate limits and data exposure. See our API testing checklist.

The tools testers use

Static analysis with MobSF, jadx and apktool shows what is inside the package. Frida and objection hook the running app to inspect and change behavior at runtime. Burp Suite or mitmproxy intercepts traffic, and adb gives access to a test device. Automated scanners are a starting point only, because they cannot tell whether a finding matters for how your app is used.

Tools find the known patterns quickly; the engineers decide which findings matter for your app and your users. The rest of the checklist, including what to give the tester, is in our complete Android guide.

04 / What we find

Weak points that recur in Chennai mobile apps

Apps for banks, dealers and field teams share their own set of weaknesses.

Show details for Weak points that recur in Chennai mobile apps
  • Offline data left unprotected. Customer lists, orders and job cards cached in a database that a rooted or lost phone gives away.
  • One login for a whole branch or van. Shared credentials on field and delivery apps, so actions cannot be traced to a person.
  • Dealer data in the sync call. A sync request that returns every dealer's prices because the server trusts the app to filter.
  • Screens that leak. Account balances and statements visible in recent-apps previews and in screenshots the app allows.
  • Old versions still accepted. The server keeps answering a build from two years ago that lacks later fixes.
  • Weak device binding. A banking session that can be moved to another handset after a single code.

Where old builds must keep working for dealers, the report separates fixes that need a new release from fixes that the server can enforce on its own.

Dealer and field apps often live longer than consumer apps, so a weakness found today may remain in the wild for years. That makes the server-side fixes especially valuable, since they protect every version at once, including the ones nobody is going to update.

05 / Rules and customers

What Chennai customers, banks and stores ask about apps

Each reviewer has a slightly different question.

Show details for What Chennai customers, banks and stores ask about apps

Banks, and the firms that serve them, work to their regulator's published directions, which set what is expected of a financial app; check them with your compliance team and tell us what applies. Customers of manufacturers ask how an ordering app protects their data, and auditors working with ISO 27001 include mobile apps that hold company data.

The Play Store rule changed this year: since 31 August 2026 new apps and updates must target Android 16 (API level 36), and the extension window ended on 1 November 2026. A move to a new target level alters permissions and file access, so test the build you will actually publish.

06 / How it runs

Where a mobile test slots into a Chennai plan

Builds and accounts travel by link, so the schedule follows your release plan.

Show details for Where a mobile test slots into a Chennai plan

  1. Before day 1

    Scope by call

    We fix the platforms, the build and the backend, who supplies test accounts, and a window that avoids your release and month-end.

  2. Day 1

    Builds and accounts

    You send release and debug builds by link, with an account for each role and the backend address. We install them on our devices and confirm that they run.

  3. Days 2 to 7

    Phone first, then server

    We inspect the package and the phone's storage and traffic, then attack the API directly, telling you at once about anything urgent.

    OutputEvidence from the phone and from the server

07 / Questions to ask

Checks to run on any mobile tester's proposal

These help when the app serves dealers, drivers or field engineers as well as customers.

Show details for Checks to run on any mobile tester's proposal
  • Will you test apps that work offline, including the local database and the sync?
  • Can you test an older build that dealers still use, as well as the current one?
  • How do you treat shared logins on field and delivery apps?
  • Will the report say which fixes need a new release and which the server can enforce?
  • Do you test the API directly, not just through the app?

08 / Delivery

Delivery of mobile tests for Chennai companies

Where the work happens

Testing is run from our office in Yellareddyguda, Hyderabad, which is our only office. Outside Hyderabad nothing about these tests needs us in your building; if a customer or a site rule asks for someone present, we come by arrangement and write the travel cost into the proposal.

What you receive

One report is written for management, customers and auditors, and a second, more technical one for the engineers who make the fixes. A walkthrough call covers both, and after your fixes we retest and mark each finding closed or open. Every inquiry gets a reply: we respond within 24 hours.

How to prepare

Test accounts, a staging address, our testing addresses allowed through your firewall and a named contact are what we ask for. The preparation article explains each item, and the one-page checklist (PDF) is a printable version.

09 / Price

Mobile test budgets in Chennai

An app and its API together fall in the larger band, starting from INR 27,000 + 18% GST and rising with platforms, roles and API size. The mobile app testing cost guide explains the factors.

The starting price for small scopes includes one free retest. For larger scopes, the retest terms are written into the proposal before work starts.

10 / FAQ

Frequently asked questions

Short answers about scope, price and how testing works. For anything else, call +91 86868 92922.

Do you test both Android and iOS apps for Chennai clients?

Yes. Android is usually tested first because the package can be unpacked and studied freely; iOS adds platform-specific checks, and the same API test serves both. See the section on Where our Chennai mobile work concentrates above.

Can you test apps that work offline in plants and basements?

Yes. We inspect the local database, how it is protected and what the sync calls send, and what a lost or rooted device would expose. See the section on Where our Chennai mobile work concentrates above.

Do you test dealer ordering apps?

Yes. We test what each dealer role can see and change, and whether one dealer can read another's prices, orders or stock. See the section on Where our Chennai mobile work concentrates above.

Do you have testers in Chennai?

No. Our engineers are in Hyderabad and the testing is remote. See the section on Delivery of mobile tests for Chennai companies above.

Does the Play Store target-level rule matter for testing?

It can. Moving to API 36 changes permissions and file access, so we recommend testing the build you will publish after the upgrade. See the section on What Chennai customers, banks and stores ask about apps above.

What does it cost?

The starting point is from INR 27,000 + 18% GST; platforms, roles and API size decide the final figure. See the section on Mobile test budgets in Chennai above.

Plan your next security test

Tell us what needs testing and when you need it done, and we will propose a scope and timeline. We respond within 24 hours. If you would rather talk first, call or write to us.

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