I will build your mobile app using glide, bubble, adalo, or flutterflow

K
karl_digital
K
karl_digital
Karl
build your mobile app using glide, bubble, adalo, or flutterflow
Full Screen
build your mobile app using glide, bubble, adalo, or flutterflow

About this gig

Looking for a professional No-Code App Developer to bring your idea to life? I specialize in building high-quality mobile and web apps using Bubble.io, Glide, Adalo, and FlutterFlow plus native Flutter development for advanced needs.


Whether you need an MVP, startup app, marketplace, booking platform, social app, or business tool, I deliver clean, scalable, and fully functional apps without compromising on design or performance.


What I offer:

  • Custom UI/UX design (mobile + web)
  • Database structure & backend logic
  • User authentication & login systems
  • Payment integration (Stripe, PayPal)
  • API & third-party integrations
  • Admin dashboards & user roles
  • Push notifications & real-time features
  • App Store & Google Play deployment


I work with Bubble, Glide, Adalo, FlutterFlow, and Flutter choosing the right tool based on your budget, timeline, and app complexity.


From simple prototypes to full SaaS platforms, I turn your vision into a working product fast, efficiently, and affordably.


Let's discuss your project message me before ordering for the best solution!

  • App type

    • Hybrid

  • Programming language

    • C
    • Java
    • JavaScript
    • PHP
    • Python
    • TypeScript
    • HTML
    • React Native
    • Flutter
    • Bubble

  • Frameworks

    • Flutter
    • Beeware
    • PhoneGap
    • MAUI
    • Angular
    • Cordova
    • Node.js

  • Purpose

    • Chat
    • Shopping
    • Booking
    • Finance
    • Medical
    • Health & fitness
    • Crypto
    • Custom
    • Ecommerce
    • Trading

  • Tools

    • Bubble
    • Glide
    • Flutterflow
    • Adalo
    • Unity
    • Firebase
    • BuildFire

  • Expertise

    • Cross browser/Device compatibility
    • Firebase
    • Analytics
    • Instant App/App Clip
    • API integration
    • Compatibility

Get to know Karl

Karl

App Tester Google Play Closed Testing Flutter and Adalo Expert

  • FromGermany
  • Member sinceJun 2026
  • Avg. response time1 hour

  • Languages

    English, German, Italian, French, Dutch
I'm a professional app tester specializing in mobile app testing for Google Play Console closed testing requirements. I help developers and businesses meet Google's 14-day testing rules with real, active testers fast and policy compliant. I work with apps built on Flutter, Adalo, and other no code/low code platforms, along with native Android apps. Whether you're publishing a new app, pushing an update, or fixing a rejected submission, I provide reliable testers, written feedback, and support through approval. Fast delivery. Real testers. Google compliant every time.

Related tags