OpenAltFinder

Open Source Flutter Software & Tools

Discover the best open source software and alternatives built with Flutter. Explore top tools, compare features, and find the right solution.

Flex

Flex

Offline-first workout tracker for strength training and cardio with progress graphs, background rest timers and a local database.

Alternative to:
HevyHevy
Sunoh

Sunoh

Android music app that plays YouTube Music, Gaana and Saavn plus your local files through one ad-free interface.

Alternative to:
SpotifySpotify
DartPDF

DartPDF

A free, local PDF editor for mobile, desktop, and web. Annotate, fill forms, sign, and redact with no account or uploads.

Alternative to:
Adobe AcrobatAdobe Acrobat
AI-assisted
Streak

Streak

Minimal, private, ad-free habit tracker for Android with streak tracking, focus sessions, and GitHub-style activity grids.

Alternative to:
HabitKitHabitKit
Anchor

Anchor

Offline-first, self-hostable note-taking app with rich text, tags, attachments, and cross-device sync via Docker.

Alternative to:
Google KeepGoogle Keep
Immich

Immich

High performance self-hosted photo and video management solution with automatic backup, facial recognition, and AI-powered search.

Alternative to:
Google PhotosGoogle Photos
openreads

openreads

Privacy-respecting mobile book tracker for iOS and Android, built with Flutter — your library lives on your device.

Alternative to:
GoodreadsGoodreads
Open Authenticator

Open Authenticator

Free, open-source cross-platform TOTP authenticator with self-hostable sync backend, built with Flutter.

Alternative to:
Google AuthenticatorGoogle Authenticator
SelfPrivacy

SelfPrivacy

Free app that turns a Hetzner or DigitalOcean VPS into your own private cloud, deploying email, Nextcloud, VPN, and more from Android or desktop.

Alternative to:
DropboxDropbox
GymMane

GymMane

Offline gym log for Android with a tap-the-muscle body map, 500+ animated exercises, rest timers, and no internet permission at all.

Alternative to:
HevyHevy