--- title: "Fix your Replit app: senior Replit developers" description: "Senior engineers take Replit Agent apps to production: safe data, real auth, tests, monitoring and hosting that fits your plans. From $6,000." url: https://zeroic.in/fix-replit-app --- [contra](https://contra.com/ZeroicAgency/reviews) [Clutch](https://clutch.co/profile/zeroic#reviews) [LinkedIn](https://www.linkedin.com/services/page/4a8a1330a86885374b/?viewAsBuyer=true) # Take your Replit Agent app from prototype to production. [Talk to us about your Replit app](https://zeroic.in/book?service=code-rescue) [See the work](https://zeroic.in/work) **Starting at** $6,000 **Timeline** 2-4 weeks **Products shipped** 40+ ## Where most Replit apps are Replit puts the editor, the agent, the database and hosting in one place, which is why apps get built so fast there. Getting it ready for real users means keeping the agent away from live data and building on pieces you control. We harden it for production and keep your options open on where it runs. The agent can still reach real data → Development and production kept apart Auth and hosting are tied to Replit → Auth and hosting you can move Nobody knows what the agent changed → Every change reviewed and versioned No tests or monitoring in place → Tests and monitoring before launch ## What we fix in Replit apps ### Production data kept safe In July 2025 a Replit agent deleted a live production database. We keep the agent away from your live data and test your backups and restores, so it cannot happen to yours. ### Auth you can take with you Replit Auth and Replit hosting make a first version easy. For the option to move later, we put auth and data on standard pieces, so where it runs stays your choice. ### Know what the agent changed One agent session can touch many files at once. We get the project into Git with readable history and code review, so every change can be traced and safely rolled back. ### Postgres set up for growth Replit Agent can create a Postgres database and schema for you. We review the schema, add indexes and migrations, and make sure the data model fits where the product is going. ## How it works 1. 01 ### Review (3 days) We read the code, the database and the deploy setup, and tell you plainly what to keep, what to fix first and what the fix costs. 2. 02 ### Fix what is failing Senior engineers separate your data, harden auth and get every change under review, keeping the screens your users know. 3. 03 ### Harden and hand off Tests, monitoring and docs go in before handover. You own the code and every account, with 6 weeks of support under real load. Starting at $6,000 Fixed scope and fixed price, agreed after the 3-day review. Not sure what is wrong yet? Start with a [Security Audit](https://zeroic.in/services/ai-audit) (from $1,000). Need more hands once it is fixed? See [senior developer retainers](https://zeroic.in/services/senior-developers). [Talk to us about your Replit app](https://zeroic.in/book?service=code-rescue) Jatin Mukheja rebuilt our onboarding, shipped our Zapier integrations, and wrote integrated plugins for our proprietary tools - all in record time. He ships better than we spec. This team is literally an extension of mine. Austin Gegg Austin Gegg CEO @ Knimble ## Work we've shipped Audits · Security + Performance ### [Audits](https://zeroic.in/audits) Security and performance audits of 100+ live apps, Bubble and Supabase included, with ranked fixes. AI · MVP → Retainer ### [Performalise](https://zeroic.in/performalise) An engineering analytics product. We took it from a narrow MVP to a platform 5+ enterprises run on. AI · Analytics ### [Better Analyst (formerly FormulaBot)](https://zeroic.in/formulabot) An analytics app used by 1.5M+ people. We built its AI layer as it grew past a million users. Further reading - [Five production failure modes in every Lovable and Bolt MVP](https://zeroic.in/blog/vibe-coded-mvp-production) - [Code Rescue vs a full rewrite: the real math for vibe-coded MVPs](https://zeroic.in/blog/code-rescue-vs-rewrite) - [Lovable vs Bolt vs Cursor: which vibe-coded MVP survives to production (2026)](https://zeroic.in/blog/lovable-vs-bolt-vs-cursor) ## How we can help Four ways to work with us - pick what fits, switch when it doesn’t. From $1,000 · 1-2 weeks ### [Audits](https://zeroic.in/services/ai-audit) Find what's broken - or whether AI is worth it - before you build. Learn more From $12,000 · 5-6 weeks ### [MVP Sprint](https://zeroic.in/services/mvp-development) Zero to production in 5-6 weeks. A real product, not a prototype. Learn more From $4,000/mo · Recurring ### [Retainer](https://zeroic.in/services/senior-developers) A senior engineer embedded on your team, month to month. Learn more From $6,000 · 2-4 weeks ### [Code Rescue](https://zeroic.in/services/code-rescue) Vibe-coded app breaking under real users? We rebuild it to hold. Learn more [Compare all services](https://zeroic.in/services) FAQ ## Frequently asked questions How much does it cost to fix a Replit app? Code Rescue starts at $6,000 for a fixed scope, agreed after a 3-day review. The review tells you the exact scope and timeline before you commit to any fixes. Not sure yet? A Security Audit, from $1,000, shows what needs fixing first. Can you move our app off Replit? Yes. The code is standard, so the move is mostly auth, the database and deploys. If staying on Replit suits you better, we harden it where it is. Is it safe to let the Replit agent near production? Yes, with guardrails in place. Keep development and production data apart, keep backups, and review what the agent changes before it ships. We set that up as part of the rescue. Do you rebuild the whole app? Rarely. We keep what works and rebuild what is failing, usually auth, data access and the integrations everything depends on. Your users keep the same screens. Do we own the code afterwards? Yes, 100%. You own the code, database, docs and credentials. No lock-in and no proprietary platform. ## Hear from us within 24 hours. **Prashant and Khushi** Partners @ Zeroic Replit app outgrowing the prototype? Tell us what it does and what's getting in the way. We'll tell you what a fix would take. Rather talk it through? 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