New Zealand
Norway
Malta
UAE
Security and data access
Row Level Security in Supabase and similar rules, exposed API keys, who can read and change what.
Service · AI Prototype to Product
From AI prototype to production and paying users.
You built an app with Lovable, Bolt, Cursor, Claude Code, Codex, Base44, v0 or Replit, and it works in the demo. 99 Francs® reviews it for free in 48 hours, then keeps your work and finishes it so it can take real users and money. Call it vibe coding cleanup or a code review before launch: design and development under one roof, and we also ship and maintain our own apps in Google Play.
Free review, then one fix from US$1,000 or a full pass at US$2,000–5,000.
- Free review in 48 hours
- One fix from US$1,000
- Full pass US$2,000–5,000
- No deposit
What the review checks · in writing, in 48 hours
- Security and data access
- Sign-in and payments
- Errors and data model
- Key screens polished
- Deployed on your own accounts
- App Store and Google Play
Direct answer
99 Francs takes a prototype built with AI tools such as Lovable, Bolt, Cursor, Claude Code or Codex and gets it ready for real users.
You give us access, and within 48 hours you get a free written review of what will break with real users, with a fixed price for the work. We keep your work and finish it rather than rewrite it, unless the review shows a rebuild is cheaper, and then we quote it as an MVP.
Signs it is time
A prototype is not a product. You may be here because:
It works in the demo, not with real users
The happy path runs. Real people bring odd inputs, slow networks, two tabs and a refresh at the wrong moment, and the prototype was never tested against any of it.
You are not sure who can see whose data
Generated apps often ship with open database policies or keys in the front-end code. Nobody finds out until a user does.
Sign-in or payments work only sometimes
Sessions expire badly, webhooks are missed and a failed card leaves the account in the wrong state. Money paths need to be boring and tested.
Every change breaks something else
The tool rewrites files it was not asked to touch. Without a clear data model and structure, each prompt is a coin toss.
It looks like every other generated app
Default components and uneven spacing tell visitors the product is not finished. The key screens need a designer, not another prompt.
You need it in the App Store or Google Play
A web prototype is not a store app. Review rules, signing, privacy forms and device testing are their own piece of work.
The free review
A written report in 48 hours, and one fixed price.
You give us access to the repo or project. We tell you what will break with real users and what it costs to fix. Free, no obligation.
Authentication
Sign-up, sign-in, password reset, sessions and roles, checked the way a stranger would use them.
Payments
Checkout, webhooks, failed and refunded payments, and what the user sees in each case.
Error handling
What happens when a request fails, a field is empty or a service is down, and whether anyone would know.
Data model
Whether the tables and relations can carry the next three features, or the next feature will break the last.
Performance
Slow queries, heavy pages and anything that will not hold up beyond a handful of users.
App Store and Google Play readiness
For mobile apps: what a store review would flag, and what is missing for signing, privacy and release.
A fixed price
The report ends with the work needed to fix it and one price for that work, written down.
Full production pass
Everything between the demo and a launch you can trust.
We keep your work and finish it. The same team fixes the code and polishes the design.
The review findings, fixed
Everything in the written report that blocks real users: data access, auth, payments, errors, the data model.
Design polish of the key screens
Design and development under one roof: the screens people use most get proper layout, type and states, in the same project.
Deploy on infrastructure you own
Hosting, database and domain in your accounts, not ours and not the tool's. You can move or hand them over at any time.
Monitoring
Error reporting and basic uptime checks, so you hear about a problem before your users write to you.
Handover
The code in your repository, a written note on how it is built and how to run it, and a walkthrough.
Process
From a link to a prototype that can take users.
Send access
Give us the repo or the project in Lovable, Bolt, Cursor, Claude Code, Codex, Base44, v0 or Replit. A link and read access are enough.
Written review
Within 48 hours you get a report on what will break with real users, with a fixed price for the work. Free, no obligation.
Fix or finish
You pick one fix or the full production pass. We keep your work and finish it. We say so if a rebuild would be cheaper.
Launch and hand over
Live on infrastructure you own, with monitoring on, and the code and notes in your hands. You pay when it is done.
Pricing
Free review, then a price fixed in writing.
Written review
A written report within 48 hours: what will break with real users, plus a fixed price for the work. No obligation.
Free
Get the reviewOne fix
A single problem solved: sign-in, Stripe payments, data access rules, a domain or deploy issue, or a store release. Paid when it is done.
from US$1,000
Get a quoteFull production pass
Review findings fixed, key screens polished, deployed on infrastructure you own, monitored and handed over. The price depends on the state of the prototype and is fixed after the review. Paid when it is done.
US$2,000–5,000
Get a quoteIf the prototype needs a real rebuild, the MVP ranges apply: a web app is US$5,000–8,000 for a tight scope and US$8,000–15,000 for a bigger one. See the MVP service and what an MVP costs. Already broken with live users? See what we fix first.
No deposit · Fixed price · Paid when the work is done
No deposit. Paid once, when the work is done.
The price is agreed in writing after the free review. You pay when the finished work is live and you are happy with it.
US$0
on every prototype project
Terms, in three steps
- Fixed price
Review first, price in writing
We read your prototype and send the findings and one fixed price for the work. Nothing starts before you agree to it.
- You pay US$0
Work starts, no deposit
No deposit and no upfront payment. You can see the work as it goes.
- Invoice
Paid when it is done
The agreed price is invoiced once, when the work is finished and you are happy with it.
Related work
Apps we have built, shipped and run ourselves.
We have not published a rescue of an AI-built prototype yet. These are products we designed and released, in stores and as a Telegram Mini App.
Mobile App · AI
ClearShot · AI camera
An iPhone camera that removes tourists and strangers from travel photos in one tap, or keeps just the person you choose. People are found on the phone with Vision, a cloud model repaints only inside that mask, and a Node and Postgres backend charges only for results. Live on the App Store and Google Play.
Read the case →
Game design · iOS · Android · Telegram
CryptoCrush · match-three game
Match-three game for a Cape Town founder who arrived with only an idea: wireframes and the full game design, native iOS and Android builds to prove the mechanics on real phones, then a TypeScript Telegram Mini App with a real server, leaderboard, ads and an admin panel, in about three weeks of active development.
Read the case →
Mobile App · iOS, Android, Watch, Mac
Timeslide · world clock
A world clock where every city is a card: drag one sideways and a single shared time moves across all of them, with the weather for that hour. Built natively for iPhone, Apple Watch and Android, with a Mac menu bar app. Widgets, GPU weather shaders and 8 languages. On the App Store and Google Play.
Read the case →AI prototype FAQ
Questions founders ask before sending a prototype.
Yes. Vibe coding cleanup, a code review of an AI-built app or taking a prototype to production all mean the same work here: we read the code your AI tool wrote, fix what breaks with real users and keep what works, instead of rewriting it from scratch.
Prototypes built with Lovable, Bolt, Cursor, Claude Code, Codex, Base44, v0 and Replit. If the code lives in a repository we can read, or in a project we can be given access to, we can review it.
No, not by default. We keep your work and finish it. If the review shows that a rebuild is cheaper than fixing, we say so and quote it as an MVP instead.
Access to the repository or the project, a line on what the app is meant to do and who will use it, and any logins we need to test it. You do not need to prepare anything else.
You get the written report within 48 hours of giving us access. It is free and carries no obligation.
The review is free. One fix starts at US$1,000. A full production pass runs US$2,000–5,000, depending on the state of the prototype. The price is fixed in writing after the review. See how we work.
You do. The code sits in your repository, and hosting, database and domain are in your accounts. We do not keep anything of yours behind our own login.
Then the MVP ranges apply: a web app is US$5,000–8,000 for a tight scope and US$8,000–15,000 for a bigger one. We tell you after the review, with the reasons, and you choose. See our MVP service and what an MVP costs.
Yes. We prepare and publish the app to Google Play and the App Store under your own developer account, so the listing and the app stay yours. We also build and run our own apps in Google Play; see mobile app development.
The price is fixed in writing after the review and paid once, when the work is done. There is no deposit.
Send the link to your prototype.
Paste a link to the app or the repo, say what it should do and who will use it. You get a free written review within 48 hours.
“I read every brief myself and reply within one working day.”Alexander, founder
Prefer to talk it through? Book a free intro call
Your quote in three steps
- 1
Send the link
To your app or repo, and one line on what it does.
- 2
Get the review in 48 hours
What will break with real users, and a fixed price. Free.
- 3
Decide, no deposit
You pay when the work is done.