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Notch edited this page Oct 14, 2026 · 1 revision

Welcome to the Wammy Wiki

Wammy is a free and open-source Android reader designed to bring manga, manhwa, manhua, and light novels together into a single, high-performance application.

Quick Navigation

Installation & Getting Started

System Requirements

  • Operating System: Android 8.0 (Oreo) or higher
  • Architecture: ARM64 (recommended), ARMv7, x86, or x86_64

Download

Download the latest APK release from the GitHub Releases page.

  • If you have a modern 64-bit Android device, choose wammy-arm64-v8a-x.x.x.apk for the smallest file size.
  • Otherwise, choose the universal wammy-x.x.x.apk.

Key Features

Manga & Light Novel Engine

  • Unified Library: Read illustrated comics and text novels side-by-side with automatic chapter tracking.
  • Customizable Reader: Supports Webtoon continuous scroll, Single Page, Double Page, Left-to-Right, and Right-to-Left reading directions.
  • Reading Customizations: Custom background colors, color filters, crop borders, and reading speeds.
  • Offline Reading: Download individual chapters or entire series for offline reading.

Google Drive Cloud Sync

  • Automated Sync: Automatically syncs your library, reading progress, custom categories, and app settings to your personal Google Drive within 1 minute of changes.
  • Safe Recovery: Built-in safeguards protect against accidental empty backups and ensure seamless recovery when switching devices.
  • Privacy First: Backup files are encrypted and stored in your private Google Drive app storage (appDataFolder).

Extensions & Sources

  • Access thousands of online catalogs and community sources through the in-app extension manager.
  • Supports standard Tachiyomi/Mihon extensions and dedicated Light Novel sources.

Profile & Tracking

  • Personalize your profile with custom avatars and headers.
  • Show off your ranked Top 5 Favorites across manga and novels.
  • Connect your external trackers (MyAnimeList, AniList, Bangumi, MangaUpdates, Kitsu) to automatically sync your completed chapters.

Frequently Asked Questions

Is Wammy completely free and ad-free?

Yes. Wammy is 100% free, open-source software with zero ads and no paid tiers.

Where are my cloud backups stored?

Your backups are stored privately in your personal Google Drive account under the hidden App Data folder. Only you have access to your data.

How do I update the app?

Wammy includes an in-app updater. You can also manually download and install the latest APK from GitHub Releases without losing any data.

Troubleshooting

Cloud Sync is not restoring my data

  1. Open Settings > Cloud Sync.
  2. Ensure you are signed in with the correct Google account.
  3. Tap Sync Now to trigger an immediate check.
  4. If needed, a local copy is always saved on your device storage at /Android/data/eu.kanade.tachiyomi/files/.

Chapters are failing to download

  1. Check your internet connection.
  2. In Settings > Downloads, verify that "Only download over Wi-Fi" is configured according to your current network.
  3. Verify that battery optimization is disabled for Wammy in your Android device settings so downloads continue in the background.

Community & Support

Clone this wiki locally