ReSync

A revived, buildable build of the discontinued Sync for Reddit Android client.

The original Sync for Reddit was a closed-source app that stopped working after Reddit shut off third-party API access in 2023 and was never updated again. ReSync is a reconstruction of that app into a normal, readable Android Studio / Gradle project that builds and runs on modern devices, with the dead bits replaced so it actually loads content again.

⚠️ This is an unofficial, fan-made preservation project. It is not affiliated with, endorsed by, or supported by the original author or Reddit. See Legal / takedown below.

What's different from the original

• Works without the official Reddit API. Sign-in was reworked so the app authenticates against current Reddit instead of the revoked OAuth client, so the front page, feeds, comments, profiles, and search load again (logged-in and anonymous browsing).
• De-Google'd / de-monetised. In-app purchasing & billing, Crashlytics, and analytics are removed. All previously paid "Ultra" features (previews, inline quotes, on-device translation) are unlocked.
• Media fixes. RedGifs playback rewritten for their current API; website/link previews use client-side og:image extraction; imgur albums use the public imgur API.
• Self-contained. Privacy policy / terms are bundled locally; formerly remote-hosted UI assets are shipped in-app. No dependency on the original project's dead backend servers.
• Rebranded to ReSync / package com.resync.app so it installs alongside (not over) anything else.

Build

See BUILD.md for the full guide, including the optional third-party API keys (what to get and where to put them).

./gradlew assembleDebug      # -> app/build/outputs/apk/debug/app-debug.apk

Requirements:

• JDK 17
• Android SDK with platform/compile SDK 35 (build-tools 34+)
• Create a local.properties with your SDK path, e.g. sdk.dir=C:\\Android\\Sdk

Install the resulting app-debug.apk on a device (minSdk 23 / Android 6.0+). Tested on Android 11 and Android 16.

API keys

The original app's third-party API keys have been stripped from this source and replaced with YOUR_* placeholders — the app builds and the core Reddit experience works without them. A few optional integrations need your own keys to function; supply them if you want those features:

Placeholder	Where	Enables
YOUR_YOUTUBE_DATA_API_KEY	CustomYouTubeVideoActivity, UrlSelectionDialogBottomSheet	In-app YouTube playback (otherwise falls back to the external YouTube app)
YOUR_IMGUR_CLIENT_ID	net/thirdparty/Imgur*Request	Imgur album/image loading via the Imgur API
YOUR_RAPIDAPI_KEY	UploadImgurRequest	Imgur uploads via RapidAPI
YOUR_REDDIT_CLIENT_ID	auth/OAuthLoginHelper	Legacy Reddit OAuth login (unused — the app uses a different sign-in path)

Firebase keys/config are intentionally absent (the original backend is dead); the app runs without them.

Status

Builds	✅ ./gradlew assembleDebug produces a working APK
Runs	✅ installs and launches; UI renders fully (Material You theming, custom fonts, feed)
Loads content	✅ front page, feeds, comments, profiles, search, anonymous browsing
Media	✅ images, videos, RedGifs, imgur albums, link previews
Ads / billing / analytics / crash reporting	Removed

Changelog

See CHANGELOG.md for the full list of changes relative to the original app.

Project layout

.
├── app/
│   ├── src/main/java/   # the reconstructed app source (real, readable names)
│   ├── src/main/res/    # resources
│   ├── src/main/assets/ # bundled assets (legal page, UI overlays, ML models)
│   └── build.gradle     # full Maven dependency list (androidx, okhttp, glide, exoplayer, …)
├── build.gradle, settings.gradle, gradle.properties
└── gradlew, gradlew.bat, gradle/

Third-party libraries are resolved as real Maven artifacts (androidx, OkHttp, Glide, ExoPlayer, Volley, Otto, Material, Firebase, …) — so you read the app code, not decompiled library code.

Legal / takedown

This repository is a non-commercial preservation / interoperability effort for an abandoned app, made available for educational and archival purposes. It is not affiliated with the original Sync for Reddit, its author, or Reddit Inc., and no endorsement is implied. Reddit, Sync for Reddit, and all related names, logos, and trademarks belong to their respective owners.

If you are the original author (or another rights holder) and would like this repository taken down, open an issue or contact the repository owner and it will be removed promptly, no questions asked.