Vibe-coded app stuck? We ship it in 30 days — or we keep building free.
Senior Flutter engineers rescue Lovable, Bolt, Cursor, Claude Code, base44 and FlutterFlow apps that can't reach the App Store — for solo founders, product teams, non-technical co-founders, and SMBs. Free 30-minute code audit. No sales pitch.
Senior Flutter team · US business hours · Fixed price from $1.5k · 30-day ship guarantee
We rescue apps built with
If any of these are you, keep reading.
My Lovable app works in the browser but won't build for iOS
Push notifications won't fire on a real device
Stripe payments work in dev, break in production
Apple rejected our build — for the third time
The Cursor-built app crashes on cold start
Our PM prototyped with AI — now it needs to ship to real users
We hired a vibe coder and inherited code that won't compile
Claude Code wrote it, but the production build fails
Customers, investors, or pilots are waiting — and we're stuck
You're not alone. We've seen all of these. We fix them.
Free audit. Fixed price. Shipped by the date — guaranteed.
Three promises, in plain English. The audit is the gate — we only quote rescues we're confident we can ship.
A free 30-minute code audit
A senior engineer pulls your repo, identifies the blockers, and tells you honestly if we can fix them. No commitment, no pitch.
A fixed-price quote
One number, one date. No hourly billing surprises. Typical rescue: $2k–$5k. You sign before we touch a keyboard.
Shipped by the date — guaranteed
We deliver by the date in your Statement of Work. If we miss it, we keep building at no extra cost until your app is accepted.
The blockers we fix every week.
Push notifications (FCM / APNs)
Stripe / RevenueCat / Apple IAP
Production iOS + Android builds
App Store / Play Store submission
OAuth, Apple Sign-in, magic links
Deep links + universal links
Camera, file system, biometrics
Cold start, jank & crash fixes
Convert Lovable / Bolt → Flutter native
How the guarantee actually works.
The guarantee depends on which tier we agree on after your audit. We tell you upfront — no buried small print.
$3,000–$4,500 rescues
30-day ship guarantee
- The free audit costs you nothing and commits you to nothing.
- After the audit, we send a written SOW: scope, fixed price, hard delivery date.
- If you sign: 50% upfront. We start.
- We ship by the date in the SOW — that's the deal.
- If we miss the date: we keep building at no additional cost until your app meets the agreed acceptance criteria. The remaining 50% doesn't trigger until acceptance.
- You keep all code regardless.
$1,500 single fix sprint
Fix it or refund
- The free audit costs you nothing and commits you to nothing.
- After the audit, we name the single blocker we'll fix — e.g. "production push notifications working on iOS and Android."
- You pay 100% upfront (smaller engagement, simpler billing).
- If we don't fix it within 14 calendar days: full refund.
- No App Store submission at this tier — that's the rescue tier above.
We can offer real guarantees because we only take on rescues we're confident in after seeing the repo. The audit is the gate — both ways.
The 30-day path.
Day 0 — Book the audit
Share your repo + a short description of what's stuck. We schedule the 30-min call.
Day 1–2 — Audit call
Senior engineer reviews your repo live. You leave with scope, price, and delivery date in writing.
Day 3–25 — We build
Daily Slack / Discord updates. You see commits as they land — no slide decks, no excuses.
Day 26–30 — Ship
TestFlight + Play Internal Testing → App Store submission → first review pass.
One audit. Four tiers. You decide.
We quote your tier after the free audit so you know exactly what you're getting and what the guarantee is — before any payment. Solo founder, product team, or funded SMB: the audit's free either way.
Free Code Audit
Free
30 minutes · No commitment
A senior engineer pulls your repo, finds the blockers, and tells you honestly if we can fix them.
- check_circle Written scope of the actual blockers
- check_circle Fixed-price quote + delivery date
- check_circle Walk-away option — no charge if it's not salvageable
Single Fix Sprint
$1,500
~16 hours · 14 days max
One named blocker — push notifications, Stripe, OAuth — fixed and merged. Refund if we don't deliver.
- check_circle ONE named technical blocker
- check_circle 100% upfront · refund if not fixed in 14 days
- check_circle No App Store submission at this tier
Full Rescue
$3,000–$4,500
30 days · 2–3 blockers + submission
We unblock everything stopping you from shipping, submit to the App Store, and guarantee the date.
- check_circle 2–3 blockers fixed
- check_circle App Store + Play Store submission included
- check_circle 50 / 50 payments · free overtime if we miss the date
Web → Native Rewrite
$12,000+
6–10 weeks · standard milestones
Your Lovable / Bolt / Cursor web prototype rebuilt as a native Flutter iOS + Android app.
- check_circle Full Flutter rewrite for iOS + Android
- check_circle Backend wiring + state management
- check_circle Standard milestone payments
Scope changes mid-project = new SOW + reset clock. The guarantee tier is part of every quote — you'll always know exactly what you're getting.
Who this is for — and who it's not.
This is for you if
- check_circle You (or your team) have a working prototype built with Lovable, Bolt, Cursor, Claude Code, FlutterFlow, base44, or similar
- check_circle You're a solo founder, product team, non-technical co-founder, agency, or SMB stuck on the production wall
- check_circle You know what's blocking you — or you don't, and you'll show us the repo
- check_circle Customers, pilot users, investors, or your own roadmap are waiting
- check_circle Your budget is at least $1,500
This is NOT for you if
- close You don't have a built prototype yet — start with our startup MVP service (built from scratch, from $8k)
- close You want us to add 10 new features (this is rescue + ship, not new development)
- close You can't share your repo (we audit code, not screenshots)
- close Your budget is under $1,500 (try a freelancer or stay in your current tool)
- close Your app is already shipped to the App Store and broken — use our App Stabilization service instead (larger codebases, $8k+)
A senior Flutter team. No agencies, no juniors, no hand-offs.
Velzosoft has shipped 20+ production apps for clients across the US, Canada, and EU since 2022. We work US Eastern business hours. We don't outsource. The same engineer who joins your audit call writes the code, ships the commits, and submits to the App Store.
Tell us what's stuck.
A senior engineer replies within 4 business hours with a calendar link. We review the repo only to prepare for the audit — never shared, never trained on, never opened without you on the call.
Frequently Asked Questions
Most are. That's normal — we've seen prototypes from Lovable, Bolt, Cursor, Claude Code, FlutterFlow and base44 in every state imaginable. The free audit is exactly where we tell you whether it's salvageable in budget, needs a partial rebuild, or should be started fresh.
We primarily rescue Flutter, React Native, and Capacitor apps. We can also convert Lovable / Bolt / Cursor web prototypes into native Flutter apps for iOS and Android — that's a separate, larger scope quoted on the audit call.
Yes. Mutual NDA before the audit if you want one — send yours, or we'll send ours. We use your repo only to prepare for the audit. We never share it, never train on it, and never look without you on the call.
Scope changes restart the clock on a new SOW with a new price and a new delivery date. The 30-day ship guarantee covers the originally agreed scope only — that's how we can offer it without going broke.
We tell you honestly and walk away. No charge. We may quote you a larger rebuild ($12k+ for a full Lovable-to-Flutter conversion, for example), but you're free to take that quote elsewhere — your code, your call.
Velzosoft is a senior team that operates in US Eastern business hours for client calls. Engineering happens around the clock. The engineer who joins your audit is the engineer who writes the code — no hand-offs to juniors or outsourcing.
You. Always. We don't keep any rights, license, or claim to the code or the App Store listing. Everything ships to your accounts, in your name.
Stripe (card), ACH transfer, and international wire. The Single Fix Sprint is 100% upfront. The Full Rescue tiers are 50% upfront and 50% on delivery — that second 50% is what triggers (and motivates) the on-time guarantee.
Stop paying for a tool. Start shipping an app.
Free audit. No commitment. We reply within 4 business hours.
Get My Free Code Auditarrow_forward