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Offers - Rescue an app in trouble

A rebuild that never ends, a blown budget, a developer who no longer answers, an app that crashes or that Apple rejects: when an app is in trouble, the hardest part is often knowing where to start.

These offers are about taking back control. We first recover your access (code, App Store and Google Play accounts, signing key), then give you an honest assessment of the app before proposing anything.

Each offer has a published price and a stated timeline. The goal is not to rebuild everything on principle, but to get your app working and back on the stores, at the fairest cost.

App Rescue Audit

€1,500 excl. VAT5 business days

Project gone off the rails, developer unreachable, unstable app or one generated with Lovable? We recover your access, audit the code and tell you whether to save it, partly rebuild it or start over.

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App rejected by Apple: we get it approved

Diagnosis €500 excl. VATDiagnosis in 2 business days

Apple rejected your app (guideline 4.2, 4.3, 2.1…)? We analyze the rejection, fix the app and resubmit it to the App Store. Fixed-price diagnosis, then costed fixes.

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Google Play and App Store Compliance

From €2,500 excl. VAT1 to 3 weeks

Got an email from Google or Apple, or an update rejected? We bring your app back into compliance (Android 16, Xcode 26) and republish it on the stores. Even if your developer is gone.

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How to choose?

  • You don't know exactly what is wrong. The App Rescue Audit gives a full assessment: access, code, security, dependencies, store compliance. It ends with a costed verdict: save, partly rebuild or start over.
  • Apple rejected your app. The App Store rejection diagnosis analyzes the reason for the rejection, then we fix the app and resubmit it. If the rejection hides a deeper problem, the diagnosis tells you.
  • Google or Apple emailed you, or an update is blocked. The Google Play and App Store compliance offer brings the app up to the required level (Android 16, Xcode 26) and republishes it, even if your developer is gone.

Frequently asked questions

My app does not work well: where do I start?
With an assessment before any decision. The GUIGUI Tech App Rescue Audit (€1,500 excl. VAT, 5 business days) checks your access, the code, security, dependencies and store compliance, then recommends saving, partly rebuilding or rebuilding the app, with a costed plan. If the only problem is an Apple rejection or a Google Play block, a targeted offer is enough.
My developer is gone: can my app be taken over?
Yes, in most cases, as long as the source code can be accessed. GUIGUI Tech starts by listing what is in your name and what is missing: code repository, App Store Connect and Google Play Console accounts, Android signing key, hosting, API keys. The free qualification call is used to check this before starting the rescue audit.
Apple rejected my app or Google is blocking my updates: what should I do?
For an Apple rejection (guidelines 4.2, 4.3, 2.1…), GUIGUI Tech offers a fixed-price diagnosis at €500 excl. VAT in 2 business days, then costed fixes and resubmission to the App Store. For an email from Google or Apple about technical requirements (Android 16, Xcode 26), store compliance starts at €2,500 excl. VAT and takes 1 to 3 weeks, even if your developer is gone.
Should a badly built app be rebuilt?
Not necessarily. A badly built app can often be saved or partly rebuilt, which costs less than a full rebuild. The decision depends on the state of the code, security and dependencies: that is exactly what the GUIGUI Tech App Rescue Audit settles, for €1,500 excl. VAT, with a reasoned and costed verdict.

Not sure which offer fits?

Book a 30-minute call: we point you to the right offer, or tell you plainly if none of them fits. No commitment.

Book a 30-minute call

Further reading

Failed app rebuild: what to do now?

Failed app rebuild or migration: identify your situation, secure your access within 48 hours, get an emergency audit, then decide whether to save or rebuild.

Read more

10 signs your mobile app is badly built

App keeps crashing, feels slow, every small fix costs a fortune? The 10 signs of a badly built mobile app, how to check them yourself and how serious each one is.

Read more

Rebuild your app from scratch or save it? How to decide

Rewrite or refactor your app? The criteria, the three options, a decision table and the pitfalls specific to mobile apps on the App Store and Google Play.

Read more

Apple rejection 4.2 "Minimum Functionality": why your app was rejected and how to fix it

Apple 4.2 Minimum Functionality rejection: what the rule says, why WebView apps are targeted and how to fix and resubmit your app.

Read more

Lovable app rejected by Apple: the 5 most common reasons (and how to fix them)

Lovable app rejected by the App Store? The 5 most common Apple rejection reasons (4.2, 2.1, 5.1.1(v), 4.8, 3.1.1), how to fix each one and resubmit.

Read more

Google Play requires Android 16 (API 36): what to do if your app is blocked

Google Play requires API 36 (Android 16) to publish any update. What changes, the risks of doing nothing and the steps to unblock your app.

Read more

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  • France
    1 RUE DE STOCKHOLM
    75008, PARIS