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Every mistake deserves
an instant second chance.

Everyone makes mistakes in production — Wingbird is the platform to correct them. Instantly patch live Flutter apps with binary diffing, bypassing app store review queues and waiting times completely.

See how it works View on GitHub ↗
wingbird-cli — v1.0
$wingbird auth login
__          ___             _     _         _
 \ \        / (_)           | |   (_)       | |
  \ \  /\  / / _ _ __   __ _| |__  _ _ __ __| |
   \ \/  \/ / | | '_ \ / _\` | '_ \| | '__/ _\` |
    \  /\  /  | | | | | (_| | |_) | | | | (_| |
     \/  \/   |_|_| |_|\__, |_.__/|_|_|  \__,_|
                        __/ |
                       |___|
[➜] No session token passed, opening browser for login...
[➜] Click here to login https://wingbird.dev/auth/login?callbackUrl=...
[✔] Received the token
[✔] Login successful. Logged in as Saugat
STEP 1/3
How it works

From Flutter project
to live patch.

Integrate once, publish a release, then ship binary patches without waiting for a full app-store release.

01

Add the SDK

Add Wingbird as a dependency and initialize it before runApp. On every cold start, the SDK checks for a compatible patch and applies it before your app renders.

dependencies: wingbird_sdk: git: url: https://github.com/Saugat913/wingbird-sdk.git
✔ Setup complete
02

Publish a release

Authenticate once, then let the CLI build your Android release and register it as the base release for future patches.

$wingbird release android production
[➜] Building release APK...[✔] Release created · rel_99a82b
03

Ship a patch

Make your fix, then generate a binary diff against the published release. Wingbird uploads the patch for your app to pick up.

$wingbird patch android production
[➜] Diffing arm64-v8a...[✔] Patch artifact created · ~180 KB
Install

One command to install.

All releases ↗

macOS

Apple Silicon · Intel

Linux

x86_64 · aarch64

Windows

x86_64

Pricing

Simple. Free while in beta.

Open-source and free to self-host forever. A managed tier ships with iOS support.

Current

Beta

$0/ month

No credit card. No lock-in. Free until iOS ships.

  • ✓Android hot-fix patches
  • ✓Up to 3 releases per app
  • ✓Up to 3 patches per release
  • ✓Binary diff via bsdiff
  • ✓CLI-first workflow
  • ✓Self-hostable forever
Get started free →
Coming soon

Pro

—

Pricing announced when iOS support ships.

  • ·Everything in Beta
  • ·iOS hot-fix patches
  • ·Team & org management
  • ·Managed cloud hosting
  • ·Priority support
  • ·Release analytics
Watch for updates ↗

Self-hosting is free forever — view source on GitHub ↗

FAQ

Common questions.

How do patches work without app store reviews?

Wingbird extracts libapp.so from your release APK and computes a bsdiff against the archived base build. Your Flutter app calls wingbird.sync() at startup, downloads the patch (~100–300 KB), and applies the diff in-process. Only the compiled Dart binary is updated — no native code changes, so no store review is triggered.

Is it really free? What's the catch?

No catch. The CLI and server are Apache-2.0 open-source and self-hostable for free, forever. The managed cloud service is free during beta. A Pro tier is planned alongside iOS support — self-hosting will always remain free.

Which platforms and architectures are supported?

Android (arm64-v8a, armeabi-v7a, x86_64) is fully supported today. Wingbird auto-detects the correct ABI from your APK. iOS support is in progress and will ship as part of the Pro tier.

Built by developers, for developers.

Wingbird is 100% open-source software. We welcome contributions, bug reports, and feedback from the Flutter community. Help us make live hot-fixing effortless for everyone.

Contribute on GitHub →Open an Issue ↗