Mobile apprecoveryservices for apps in trouble.

Crashes after every release, ratings sliding, revenue flat and the original team gone. We find out what is really wrong with your iOS or Android app, stabilize it and give you a plan you can trust.
Get your app back

Your app is probably not failing for the reason you think.

Teams under pressure ship fix after fix for the symptoms they can see. The real cause is often somewhere else: an outdated SDK, a fragile flow in checkout, an architecture nobody understands any more. Recovery starts with finding it, and only then deciding what to rebuild, repair or leave alone.

What a struggling app looks like from the inside

01

Crashes that keep coming back

Each release fixes a few crashes and adds new ones. The crash dashboard never gets better.
02

Ratings sliding month after month

Reviews mention the same broken flows, and new users read them before they install.
03

Revenue that stopped following effort

The team works harder every quarter, but subscriptions, orders and retention stay flat.
04

A codebase nobody wants to touch

The original developers are gone, documentation is thin and every change risks breaking something.
05

Store compliance at risk

Policy warnings, outdated SDKs or a rejected update put the app's place in the store in danger.
06

Decisions without data

Every sprint the priorities change, because nobody has a clear picture of what matters most.

Where app problems show up first

Trouble in a mobile app rarely stays in one place. It spreads from the code to users, revenue and the team.

Stability

  • Crash spikes after releases
  • Bugs that come back
  • Problems on new OS versions

Users

  • Falling store ratings
  • Drop-off in onboarding and checkout
  • More support complaints

Revenue

  • Declining conversion
  • Subscription cancellations
  • Growth slowing down

Team

  • Slower releases
  • Rising maintenance effort
  • Fear of touching critical code

Signs your app needs a rescue

If several of these are true, more feature work won't fix it. The app needs recovery first.

1

Your rating keeps dropping

Store reviews point to specific failures, not just pricing or taste.

2

An OS update broke a key flow

Login, checkout, subscriptions or notifications stopped working on a new iOS or Android version.

3

Fixes don't stay fixed

The same bugs and crashes return release after release.

4

Releases have slowed to a crawl

Shipping takes longer every time, and each release needs a hotfix.

5

The original team is gone

An agency or key developer left and nobody fully understands the app.

6

Users stop coming back

Retention falls and people abandon the app before reaching its key actions.

What we do

App rescue services, step by step

App stability audit

A review of crashes, dependencies, architecture and release setup that ranks issues by business impact.

App crash recovery services

We trace the top crashes to their root causes and fix them, starting with the flows that cost most.

App performance recovery

Faster startup, smoother screens and lighter network use on the devices your users own.

App store rating recovery

We fix the issues behind negative reviews first, so new ratings can reflect a better app.

App revenue recovery

Repairing broken checkout, subscription and onboarding flows that lose paying users.

Dependency and SDK cleanup

Replacing outdated or abandoned SDKs and libraries that block updates or cause crashes.

Store compliance fixes

Policy, privacy and target API updates that keep your app in the App Store and Google Play.

Team takeover

Taking over the codebase and releases when the original developers are gone.

What a recovery plan covers

Recovery starts with an audit. Its findings become a plan you can act on with us, with your own team or with another vendor.

Product and store health

Rating trends and review themes

Critical user flows

Store visibility and policy status

Usability gaps that block conversion

Technical state

Crash analytics and OS-specific issues

Outdated and deprecated SDKs

Performance bottlenecks

Architecture and release pipeline risks

Prioritized roadmap

Issues ranked by business impact

Quick wins vs long-term work

Effort estimates in ranges

Clear order of recovery steps

Who is this for

Apps under pressure

Subscription apps

Cancellations are up, ratings are down and the revenue curve went flat.

E-commerce and marketplaces

Checkout or ordering fails for some users, and every failed order is lost money.

AI consumer apps

AI features break or mislead users, and reviews are turning against the app.

Founders left without a team

Your agency or developers are gone and the app keeps getting worse.

What do you need first?

Understand the problem

An audit that finds the real causes.

Stop the crashes

Fix the top crashes in critical flows.

Win back ratings

Fix what users complain about in reviews.

Recover revenue flows

Repair checkout, subscriptions and onboarding.

Stay in the store

Resolve policy and compliance blockers.

Get a new team

Take over the code and keep shipping.

How we recover a mobile app

01

Qualification call

We review your app, key integrations and what's going wrong, and agree the right scope for the audit.

02

Access under NDA

You give read-only access to the repository, store consoles and crash analytics.

03

Audit

We work through product, technical and store health and rank every issue by impact.

04

Recovery plan

You get a written report and a readout call: what to fix, in what order and with what effort.

05

Stabilize

If you continue with us, we fix critical crashes, broken flows and store blockers first.

06

Back to growth

With the app stable, we restore a steady release rhythm and return to features.

How we work

Two ways to start recovery

Audit first

most popular

Quick Audit: 3 working days. Full Audit: 8–10 working days.

Fixed price, agreed before we start.

For apps where the real cause isn't clear yet. The report is yours to use with any team.

Store, product and technical review

Crash and dependency analysis

Issues ranked by business impact

Effort estimates in ranges

Readout call with your team

Book an audit

Fast track

Straight to stabilization

Monthly team, scope agreed with you.

For apps with an urgent, known problem: a blocked update, a crash spike or a broken checkout.

Immediate focus on the critical issue

Mobile engineers and QA on your app

Root-cause fixes, not quick patches

Store submission handled

Audit of the rest once stable

Start fast

Apps we helped recover

subscription app

Flight Tracker+ — iOS subscription app

USA
Global
59%
growth of active user base
Before
→
after
↓
Rating declining
↑
Revenue €200K → €1.2M in 6 months
↓
Revenue stagnating at €200K
↑
Stable weekly release cadence
↓
Legacy codebase, original team gone
↑
Architecture rebuilt
↓
No clear path to recovery
↑
Clear path for future growth
AI CONSUMER APPS

AI Mobile Editors

Global
4M+
DOWNLOADS COMBINED
Before
→
after
↓
Existing  codebase required stabilization
↑
Both apps stayed instore
↓
AI features broken or misleading
↑
AI rebuilt to production quality
↓
App Store compliance at risk
↑
App Store compliance restored
↓
Reviews declining fast
↑
Product stabilized 
E-COMMERCE & MARKETPLACE

Flashfood Grocery marketplace

USA
Canada
$247M
SHOPPER SAVINGS
Before
→
after
↓
Rapid scale across 700+ stores
↑
$247M in shopper savings
↓
Mobile reliability under pressure
↑
$16.5M raised
↓
Engineering capacity stretched thin
↑
1,600 stores served
↓
No clear path to recovery
↑
Sustained delivery cadence

Make the most of the experienced team

We are a global team of
creative
and
strategic thinkers
who specialize in building custom digital products
from scratch. Our main goal is to
deliver high-quality solutions
that meet our clients' needs.
We are a global team of
creative
and
strategic thinkers
who specialize
in building custom digital products
from scratch. Our main goal is to
deliver high-quality solutions
that
meet our clients' needs.
Learn more
85%
recurring customers
12M
the biggest fundraising round by one startup
X3 MRR
growth of partner's business in 5 mos
2 weeks
for project start
5+ years
av. partnership duration with SMBs and product companies

Why Gilzor

As a mobile app rescue company, we work on apps other teams left behind. We stay calm, find the cause and tell you the truth about what it takes to fix it.

What we bring

Mobile experience

7+ years building iOS and Android products.

Fast audits

Quick Audit in 3 working days, Full Audit in 8–10.

Quick start

Recovery work can start in about two weeks.

Long-term partner

85% of our customers come back with new work.

Full team

iOS, Android, React Native, backend, QA and design.

What makes us different

Cause before code

We diagnose first, so you don't pay for fixes that miss the problem.

No forced rewrite

We rebuild only what needs rebuilding.

A report you own

Use it with us, your team or another vendor.

Business impact first

Issues ranked by what they cost you, not by how interesting they are.

Overlap with US hours

Our engineers in Europe overlap with part of the US working day.

What our clients
frequently ask

What do mobile app recovery services include?

An audit to find the real causes, then stabilization: fixing crashes, broken flows, outdated SDKs and store compliance issues, followed by a return to regular releases. You can stop after the audit if you prefer.

Do we have to rewrite the app?

Usually not. Most apps can be recovered by fixing the parts that cause the most damage. If a rewrite of some areas is the better option, the audit explains why and what it would take.

How long does the audit take?

A Quick Audit takes 3 working days and suits simpler apps. A Full Audit takes 8–10 working days and covers larger or older codebases, more integrations and complex flows.

Can you rescue an app built by another agency?

Yes. Taking over code written by another team is a normal part of recovery. We need read-only access to the code, store consoles and crash analytics to start.

Can you help us recover our store rating?

We can fix the problems users complain about, which is what lets new reviews improve. We can't control what users write, so we focus on the causes behind the bad ratings.

What if we need help right now?

Choose the fast track. We start with the most urgent issue, like a crash spike or a blocked update, and audit the rest once the app is stable.

No sales pitch

Tell us what's going wrong with your app

Describe the symptoms: crashes, ratings, revenue or a team that left. We'll suggest whether to start with an audit or go straight to stabilization.

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