Flutter Maintenance & Publishing
Have a mobile app that's stuck, outdated, or rejected from the stores? We fix it.
We take over Flutter apps written by other teams, update them, publish them to the App Store and Google Play, and keep them functional long-term.
- App Store & Google Play
- Flutter SDK upgrade
- Bug fixes
- Full rebuild if needed
Situations we fix regularly
If you recognise any of the situations below, we can help.
- The app was rejected by the App Store or Google Play — due to policy violations, expired certificates or incorrect screenshots
- The Flutter version is too old, the app no longer builds and the original team is gone
- The development team that built the app has left and nobody in the company can make changes anymore
- Push notifications stopped working — users no longer receive alerts and you don't know why
- The app crashes on new iOS or Android versions — and you're getting complaints from users
- You need small new features but don't have a team available to implement them
We take over the app and get it working again
Rapid app state audit
We analyse the code, identify build, publishing and quality issues. We deliver a report on what needs to be done and in what timeframe.
We fix what's broken
Flutter SDK upgrade, crash resolution, dependency updates, notification repair — we work methodically through the issue list.
We publish to the stores
We handle the entire submission process: certificates, screenshots, descriptions, Apple and Google review, handling rejections.
What our maintenance service includes
App Store & Google Play publishing
Signing certificates, provisioning profile configuration, screenshots and descriptions, submission and handling any rejections from Apple or Google.
Flutter SDK upgrade
We update to the latest stable Flutter and Dart version, resolve breaking changes and ensure the app builds and runs correctly.
Bug fixes
Crash report analysis, ANR resolution, UI glitch and incorrect behaviour fixes. We work from your reports and Firebase Crashlytics data.
Firebase updates
We update Firebase SDKs, repair notification configuration, update Firestore rules and ensure authentication works correctly.
Small feature support
On a monthly retainer, we implement small new features — new screens, additional fields, flow adjustments — without needing a new project.
How we handle the intervention
From first message to working app in the store.
Initial audit (1–2 days)
1–2 days
We analyse the code, identify issues and deliver a clear report: what's broken, what needs fixing, how long it takes and what it costs.
€500
Repair & upgrade (1–3 weeks)
1–3 weeks
We implement the repair plan: Flutter upgrade, crash fixes, dependency updates and any other intervention identified in the audit.
Testing & publishing (3–7 days)
3–7 days
We test on real devices, prepare store materials and submit for review. We handle any rejections until final approval.
Monthly maintenance (optional)
If you want to keep the app updated long-term, we offer a monthly maintenance package with updates, bug fixes and new features.
Maintenance and repair pricing
We start with a quick audit — you only pay to continue if you choose to.
App Rescue Audit
1–2 days
We assess code quality, identify build and publishing issues and deliver a repair plan with cost and time estimates.
- Code and dependency audit
- Build issue identification
- Store publishing blocker analysis
- Repair plan with estimate
Publishing Pack
Full App Store and Google Play submission: certificates, screenshots, descriptions, review handling and rejection fixes.
- Signing certificates & provisioning
- Store screenshots & descriptions
- App Store + Google Play submission
- Rejection handling included
Monthly Maintenance
Hosting, SDK updates, bug fixes and continuous monitoring. Your app stays functional without you worrying about it.
- Hosting & monitoring
- Flutter SDK updates
- Bug fixes
- Store update publishing
Feature Support Retainer
Monthly feature work plus full maintenance and priority support. For apps that are actively evolving.
- Everything from Monthly Maintenance
- Monthly new features
- Priority support
- Monthly activity report
Where maintenance fits in your journey
Maintenance is either the entry point for a legacy app or the natural continuation after a new MVP.
Let's see what can be done with your app
Send us a few details about the situation and we'll tell you within 24h if and how we can help.
Briefly describe the situation and we'll reply within a few hours.
Open WhatsApp →Send us a message
Tell us what problem your app has and we'll contact you within 24h.
Book an evaluation call
30 minutes. We discuss your app's situation and what options exist.
Open in Calendly →Frequently asked questions
Can you take over an app written by another company or freelancer?
Yes, we do this frequently. We start with a code audit to understand what we're working with — quality, architecture, dependencies, known issues. Based on the audit we decide together whether to fix what exists or rebuild from scratch.
How long does it take to publish an app to the App Store or Google Play?
Apple review usually takes 1–3 business days, Google Play 1–2 days. If the app is rejected, we handle the fix and resubmission — included in the Publishing Pack. Total: 3–10 days depending on iterations needed.
What happens if the app has serious issues — constant crashes, incomprehensible code?
The audit identifies the extent of the damage. If the code is fixable, we fix it. If it's more efficient to rebuild from scratch (or partially), we present both options with costs and rationale. The decision is yours.
Do you offer a guarantee for bug fixes?
Yes. We guarantee our fixes: if a bug we repaired reappears from the same cause, we fix it again at no extra cost.
Can we add new features and still receive maintenance?
Yes. The Feature Support Retainer (€700/month) includes both full maintenance and a monthly budget for new features. For larger extension projects, we do a separate scoping.