Take Over an App ProjectTake over your app from a previous developer
Taking over an app means moving 6 accounts into your name (the App Store, Google Play, Firebase or Supabase, Stripe, the code repository and the domain), then fixing what stopped working. Anything in the old developer’s own account needs them, or that vendor’s support team, to move it.App369 is one developer, Simon Dziak, who picks up apps another developer started or left. One problem you can name starts with a $450 diagnosis in 3 business days, counted from repo access and the steps that show the problem. A Lovable, Bolt or Cursor app gets a $450 Launch Check of the whole app. Ongoing work is the Monthly Dev Subscription, from $1,495 a month.
Full refund if Simon can’t take it on once he sees your project, or if you cancel before work starts. Refund terms.
Simon does the work himself- 5.0 from 127 Fiverr reviews, checked
Fixed prices
All fixed-price offers- from $450App Fix TicketOne reproducible bug in an existing mobile or web app, diagnosed and fixed.See scope and start
- from $450AI-Built App RescueA Lovable, Bolt or Cursor app checked end to end in 3 days, then its worst problems fixed at a fixed price.See scope and start
- from $1,495/monthMonthly Dev SubscriptionOne development request at a time, most back in about 2 business days. Pause or cancel anytime.See scope and start
Something else? Describe your project
Check it yourself
What do you control right now?
Each vendor decides who can move an account. These 3 checks show whether the developer’s help is needed before anyone can take over.
| Check | Run this | A pass looks like |
|---|---|---|
| Whose GitHub account holds the code? | git remote -v | The URL shows your own organization or account. GitHub says moving a repository needs administrator access to it, so a repository in the developer’s personal account needs them to move it. Who owns the code is a separate question your contract answers. |
| Who is the Account Holder of the Apple account the app is in? | Sign in to the Apple Developer account the app is published from and find who holds the Account Holder role | The app is in an Apple account where you or your company is the Account Holder. Apple says only the Account Holder of the account the app is in can start an App Transfer. |
| Who has the Owner role on the Firebase project? | Firebase console > Project settings > Users and permissions | Someone you control is an Owner. Changing who has access needs permission to change the project’s IAM policy, which an Owner usually has. |
The takeover, in order
What does taking over an app involve?
01
Get the accounts into your name
List every account the app runs on and who controls it. Accounts registered to you only need their recovery email, phone and billing card checked. Accounts in the developer’s own name usually need the developer, or that vendor’s support team, to move them.
Free app handover checklistApp developer disappeared: the first 48 hours02
Copy out what you can already reach
Clone the repository if you have access, and export the database, the user list and stored files. Don’t delete keys, users or plans yet: the live app may still depend on them.
Switch app developers without losing code03
Move a Firebase project
Changing who has access to a Firebase project needs an Owner. If the Owner is gone and the project isn’t in a Google Cloud organization, Firebase says its Support team can assign a temporary Owner. The guide below covers the billing account, the Analytics property and the push notification key.
Transfer a Firebase project to a new owner04
Fix what stopped working
If one part has stopped working, such as a login, a payment or a store build, an App Fix Ticket finds the cause: a $450 diagnosis in 3 business days, credited toward the $1,200 fix, which arrives as a pull request with a regression test.
App Fix Ticket05
Check an AI-built app end to end
If the previous developer built it with Lovable, Bolt or Cursor, the $450 Launch Check is a written check of the whole app, with each issue rated and a fixed price to fix the worst ones.
AI-Built App Rescue06
Keep the app moving
Once the app is in your accounts, the Monthly Dev Subscription covers bug fixes, small features, Stripe, Firebase or Supabase fixes and store-build updates, one request at a time, from $1,495 a month. Pause or cancel anytime.
Monthly Dev Subscription
Before you hire anyone
Who can move each account
Who can move each account comes from that vendor’s own help page, read November 11, 2026. Where a vendor’s page doesn’t cover an owner who never replies, the note says so. Check them before you hire anyone, App369 included.
App Store
Only the Account Holder of the Apple account the app is in can start an App Transfer, and a transferred app keeps its reviews and ratings. Apple’s page doesn’t cover an Account Holder who never replies; without a transfer, the app can only be published again from your own account as a new listing.
Google Play
A transfer request has to come from someone who can sign in to the original Play account. Google’s page doesn’t cover an owner who never replies; without a transfer, the app can only be published again from your own Play account as a new app.
Stripe
The account owner can hand ownership to a team member with the Administrator or Super Administrator role. Otherwise Stripe Support handles the request, verifies your identity and your link to the business, and tells the current owner, who can cancel it.
GitHub and the domain
A repository moves with someone who has admin access to it. A domain registered in your name lets you ask the registrar for the transfer code yourself; in the developer’s name, the registrar treats them as the holder.
- App Store Connect
- Google Play Console
- Firebase
- Supabase
- Stripe
- GitHub
- Lovable
- Bolt
- Flutter
FAQ
Questions before you start
How much does it cost to take over an app from another developer?
App369 publishes fixed prices by situation. One problem you can name starts with an App Fix Ticket, a $450 diagnosis credited toward the $1,200 fix. A Lovable, Bolt or Cursor app starts with a $450 Launch Check. Ongoing work is the Monthly Dev Subscription, from $1,495 a month.
Do I need the old developer to take over the app?
Only for accounts in their own name. Apple and Google Play transfers need someone who controls the original account, and a repository in their personal GitHub account needs them to move it. Accounts registered to you, and any code you can already clone, can be taken over without them.
Should I change all the passwords right away?
Only where you are the only person who uses that login. The live app, or the developer, may still depend on shared passwords, API keys and service accounts. Rotate keys after ownership has moved to you.
Will you touch my production data?
No. Fixes arrive as pull requests you review and merge, and production data is never changed without your written approval.
What isn’t included?
Legal advice about who owns the code (your contract decides that), contacting the previous developer or vendor support on your behalf, app store, hosting or vendor fees, rebuilding the app from scratch (quoted as a Web App MVP Sprint), guaranteed app store approval, and calls, except paid consultations ($100 per 15 minutes, paid upfront).
Who does the work?
Simon Dziak, who founded App369, does the work himself, in writing by email.
Sources
Not a fixed-price job?
Describe it and get a written quote
Send what you need built or fixed. You get a written scope, a fixed price and a timeline; Simon replies by email, usually within one business day.
Prefer a call? Consultations are $100 per 15 minutes, paid upfront.