Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix lovable base44 replit vibe coded apps supabase stripe ios android app stores
Julian J
About this gig
Lovable, Base44, Replit or Bolt app stuck in bug loops, broken auth, Stripe/Supabase sync, failed deploys or App Store rejection?
I take over AI/vibe-coded apps, find root causes, preserve working features and turn unfinished builds into secure, production-ready apps.
WHAT I FIX & SHIP:
- Lovable fix Base44 bug fix Replit fix
- Bolt.new fix vibe coding fix AI app debugging
- App takeover codebase audit regression fix
- React Next.js TypeScript cleanup
- Supabase auth Supabase RLS storage Postgres
- RBAC tenant isolation state sync
- Stripe integration webhooks subscription fix
- OAuth API integration background jobs
- Retries monitoring security
- Vercel Railway app deployment
- Base44/Replit migration GitHub self-hosting
- Capacitor React Native Expo
- Lovable to iOS Base44 to iOS/Android
- Push notifications deep links
- RevenueCat StoreKit IAP restore purchase
- Xcode Android Studio APK AAB IPA
- TestFlight App Store submission Google Play
- App Store rejection resubmission
- E2E regression testing launch readiness
I audit, fix root causes and ship a stable app you control.
Message first with your app link, stack and blockers.
Get to know Julian J
Julian J
AI Systems App Developer Claude Code, Shopify, n8n, MCP
- FromNigeria
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian
I build and repair production-ready AI systems, web/mobile apps, Shopify stores, and business automations. Using Claude Code, n8n, MCP, Hermes Agent, Supabase, Stripe, APIs, Liquid, GraphQL, and modern app frameworks, I turn ideas, broken prototypes, and disconnected workflows into reliable products. I handle Lovable, Base44 and Replit app rescue, Shopify development, AI agents, website-to-app conversion, lead automation, integrations, testing, deployment, and performance optimization. Need a system that actually works in production? Message me before ordering. Clean builds. Reliable delivery.
My Portfolio
FAQ
Can you fix an existing Lovable, Base44, Replit or Bolt app without rebuilding it?
Yes. Existing AI-built apps are the main focus. I audit the codebase first, preserve what already works, find the root cause and only recommend rebuilding when repair would be less secure, reliable or cost-effective.
Can you fix Supabase auth, RLS, database, storage and user permission problems?
Yes. I fix Supabase authentication, OAuth, sessions, RLS policies, roles, tenant isolation, database connections, storage access, profile sync and permission errors across Lovable, Base44, Replit and Bolt apps.
Can you fix Stripe payments, webhooks, subscriptions and account-state issues?
Yes. I troubleshoot Stripe checkout, failed payments, webhooks, subscription sync, billing state, plan upgrades, entitlements and Stripe-Supabase mismatches so payment status stays consistent across backend and frontend.
Can you add APIs, OAuth, email, AI features or other third-party integrations?
Yes. I can repair or add REST/GraphQL APIs, OAuth, Resend/Postmark email, OpenAI/Claude APIs, CRM tools, webhooks and other integrations, including retries, error handling and background jobs where needed.
Can you migrate my Base44, Replit or Lovable app without losing users or data?
Yes. I can migrate code, databases, auth, users, files, storage and relationships while preserving existing functionality where the source platform allows it. I can also move the project to client-owned GitHub, Supabase or hosting.
Can you make my AI-built app production ready and deploy it to a live domain?
Yes. I handle production hardening, environment variables, secrets, build errors, Vercel/Netlify/Railway deployment, custom domains, SSL, security checks, logging and critical-flow testing before launch.
Can you convert my Lovable or Base44 web app to iOS and Android?
Yes. I can convert compatible web apps using Capacitor, React Native or Expo, then handle mobile fixes, permissions, push notifications, deep links, Xcode/Android Studio builds and APK, AAB or IPA generation.
Can you set up RevenueCat, IAP, TestFlight and publish to the App Store or Google Play?
Yes. I can configure RevenueCat, StoreKit/IAP, subscriptions, Restore Purchases, TestFlight, signing, App Store Connect and Google Play Console, then assist with submission, rejection fixes and resubmission.
What access or files do you need to diagnose and fix my app?
Send your app URL, platform, GitHub or source access, current stack, error messages and the flows that are failing. For Supabase, Stripe, hosting or store work, relevant project access may also be needed.
Should I message you before ordering if I am not sure what is broken?
Yes. Message me first with your app link, stack, current blockers and desired outcome. I can review the situation, identify the likely root cause and confirm the correct scope before you order.
