Mobile app audit

A mobile app audit is a structured review of what you already have: the code, architecture, performance and security. We don't rewrite or touch working code during the audit — the goal is different: to understand the real state of the product, find the weak spots and estimate what it takes to put it in order. We look at the project the way engineers do — the ones who'll have to live with this code later.

Most often an audit is the first step before further work or a change of team. You need it when the previous contractor is gone, the app is slow or crashing, and no one can explain what's happening inside. The result isn't a vague "it's all bad" or "it's fine" — it's a concrete report: issues sorted by priority, a tech-debt estimate, and a plan you can move forward with, whether with us or without us.

What we review

Code and architecture — project structure, layer separation, dependency health, duplication and coupling, readability and testability. Performance — cold start, UI jank, memory leaks, excess re-renders (for React Native — the bridge and JS-thread load), bundle size. Security — token and secret storage, API handling, treatment of personal data, obvious vulnerabilities. Separately we look at the release pipeline: build, CI/CD, the state of App Store and Google Play accounts, SDK versions and how long they stay supported.

How the audit runs

We start with access to the repository and a short call: what the product is, what hurts, what the plans are. Then we work with the code read-only — studying it without changing anything in your project. Some issues are visible statically, others only in a running app, so where possible we build and launch it to reproduce performance and stability complaints.

The audit typically takes 1–2 weeks depending on the size of the codebase and the number of platforms. We ask clarifying questions along the way and stay in touch — the outcome won't come as a surprise.

What you get

A written report broken down by area (code, architecture, performance, security, release). Every issue found comes with a description, a severity rating and a priority: what to fix now, what can wait, and what isn't worth rewriting at all. A separate section covers tech debt and risks — where the app will break under load, what's blocking the product from growing, where future pain is baked in.

The report ends with an action plan and a rough estimate of the work involved. You can take it to any contractor — the report doesn't lock you in with us.

When an audit makes sense

Before taking over an app written by another team — to enter the project safely without breaking what works. Before buying a finished product or during due diligence — to understand what's really inside. When the app is slow, crashes, or feels too risky to touch, and the team can't say why. An audit gives you a sober picture before you pour budget into blind reworks.

Our experience

We build mobile and full-stack products on React Native and Node.js — iOS, Android and macOS from a shared codebase — and have spent 10 years working with commercial code across travel, delivery, e-commerce and ride-hailing (BestTrip, Jiffy, Devis Group, Postmypost). So we run audits as engineers who write and maintain such apps ourselves, not as formal reviewers with a checklist. We see not just what's wrong, but why it happened and what to do about it.

FAQ

How much does an app audit cost?
It depends on the size of the codebase, the number of platforms and the depth of the review. An audit is a fixed scope with a clear estimate, which we give after a short call and a quick look at the repository. It's noticeably cheaper than full development and almost always pays off by sparing you a blind, costly rework.
How long does an audit take?
Roughly 1–2 weeks. A small single-platform app is faster; a large project with a backend and several platforms takes longer. We give an exact timeline once we see the volume of code.
Do we need to give you access to the code?
Yes — a proper audit needs access to the repository (read-only is enough). We don't change anything in your project during the audit, only study it. We're happy to sign an NDA before access is shared.

Tell us about your product — a path to production follows

A 30-minute call: the task, the risks and the format of working together. No obligations.