The PHP2Shell flaws (CVE-2026-109618 and CVE-2026-109619) were published on 21 October 2026 and can hand an attacker remote code execution with no account needed. If the PHP server behind your planned app runs 8.1 or earlier, no official patch will ever arrive for it. Don't worry: we harden or replace that backend and hand you a first Flutter build in 7 days. Read our PHP2Shell explainer.
Our PHP to Flutter migration services in USA and UK markets turn an existing PHP web system into mobile apps written in Flutter, Google's UI toolkit. One Dart codebase produces apps for iPhone and Android, and the same code can also target the web if you want it to.
Flutter covers the screens, not the server. Your PHP application keeps doing the work it does today, such as pricing, stock, bookings and accounts, but it has to speak JSON to the app. We either move your current PHP code onto a patched PHP 8.4 and add a proper REST API, or rebuild the backend in a framework like Laravel when the old code would not survive the change.
Techno Mantraa has more than a decade of web development behind it. We are a team in India working hours that meet the US East Coast and UK day, and we give you a fixed price and a first test build of the app within one week.
What Flutter brings to a PHP product
Flutter draws every pixel itself, so the app looks the same on every phone. For brands that care about a consistent look, that is the main draw.
Pixel-perfect on every device
Flutter renders its own widgets, so your design looks identical on a new iPhone and a budget Android handset.
Fast to build and tweak
Hot reload shows code changes in seconds, so design rounds with you take hours rather than days.
Smooth performance
Dart compiles ahead of time to native ARM code, giving fluid scrolling and animation for catalogues, maps and dashboards.
Included in the Flutter project
- Review of your PHP code and the data the app must read and write
- PHP moved to patched PHP 8.4, or a new API in Laravel
- Secure token authentication between the app and the server
- Flutter app in Dart for iOS and Android from one codebase
- State management with Riverpod or Bloc, kept simple and documented
- Push notifications through Firebase Cloud Messaging
- Local storage for offline screens and saved drafts
- TestFlight and Google Play testing builds, then help with store listing
First week of your Flutter build
Day 1: Plan the API and app
We read the PHP code, choose keep or rebuild for the backend, sketch the screen flow and fix the price for the agreed scope.
Days 2-4: Server, then widgets
The backend moves to PHP 8.4 or its new framework with JSON endpoints, while the main Flutter screens are built and connected.
Days 5-6: Real-phone testing
We run the app on a range of iOS and Android devices, fix bugs and slow spots, and share test builds with your team.
Day 7: Ship to testers
The patched API goes live and the Flutter app goes out to TestFlight and Play internal testing for store submission.
Mobile browser vs Flutter app
How the experience changes when your PHP system gets a Flutter front end on the phone.
| PHP site in a mobile browser | Flutter app | |
|---|---|---|
| Look and feel | Depends on the browser and screen | Same branded design on every device |
| Speed | Full page loads over mobile data | Compiled app, only data travels |
| Alerts | None outside email | Push notifications via Firebase |
| Without signal | Blank page | Saved data and offline drafts |
| Backend | Old PHP rendering HTML | JSON API on PHP 8.4 or Laravel |
| Platforms | Web only | iOS, Android and optional web build |
Why trust us with your Flutter app
We come from the server side of PHP, so we do not build a shiny app on top of a weak backend.
Server security first
Before the app is released, the PHP side is on a patched version or rebuilt, so the app never opens a back door.
Agreed fixed price for the screens in scope, set after a free call.
We sign an NDA before seeing your code or product plans.
Flutter app projects for British and American firms
This offer is meant for businesses in the UK and the United States that run on a PHP system and now want a branded mobile app. Our team works hours that overlap with UK offices and US Eastern time, and replies to feedback on test builds within the same day.
Being an offshore team, we charge much less than a local app studio would. You still have a project manager, a written plan, a signed NDA and delivery dates you can plan around.
Official sources: PHP supported versions · Flutter
Frequently asked questions
Straight answers about our PHP to Flutter Migration service.
Within 7 days most small and medium projects have a secured backend and a first Flutter build in testers' hands. Very large apps follow a phased plan, with the first part live inside those 7 days. App Store and Play review times come on top and are set by Apple and Google.
Yes. Flutter talks to any server over HTTP and JSON. If your PHP code is sound, we upgrade it to PHP 8.4 with the latest security release and add the endpoints the app needs.
Flutter suits teams who want an identical custom design everywhere and strong animation. React Native suits teams who already use React on the web and want to share code. We will recommend one after looking at your plans.
Flutter can build for the web, which works well for logged-in tools and dashboards. For public, SEO-heavy pages we usually keep a normal website, because Flutter web pages are harder for search engines to read.
You do. The Flutter project, the backend code and the store accounts are yours, and we hand over the repositories with setup notes.
Yes. Clients across the United Kingdom and United States get our team on their working hours, a fixed price, a signed NDA and one contact who shares builds and progress every working day.
Is your PHP app still on an old version?
Send us the URL or the repository. We check it for the PHP2Shell flaw and old code for free, and tell you what a 7-day migration looks like.
Get a free migration audit