General FAQ
Frequently asked questions about Wammy, its architecture, and supported features.
What is Wammy?
Wammy is a free, high-performance, open-source Android reader built from the ground up for manga, manhwa, manhua, webtoons, and light novels. It combines a unified reading interface, custom comic and novel reader engines, native built-in scrapers, and Google Drive cloud synchronization into a single modern Material 3 application.
What formats and content types are supported?
Wammy supports reading both visual comics and text-based novels:
- Online Manga & Comics: Manga, Manhwa, Manhua, and Webtoons from over 20+ built-in community sources and external extensions.
- Online Light Novels & Web Novels: Direct scraping of online web novels with an integrated reading engine and Text-to-Speech (TTS) narration.
- Local Files: Offline archives including
.cbz,.cbr,.zip,.rar,.epub, and folder-based image directories.
Is Wammy a fork of Mihon or Tachiyomi?
Wammy is built upon the solid foundation and database structure of the Mihon/Tachiyomi ecosystem, but has diverged significantly with modern architectural improvements:
- Full Jetpack Compose & Material 3 UI: The entire user interface, floating dock navigation, settings, and browsing feeds are written natively in Jetpack Compose.
- Built-In Native Sources: Core sources work out of the box with zero APK installation required.
- Unified Manga & Novel Library: Full native novel reader engine, light novel source integration, and LNReader plugin support alongside traditional manga.
- Sub-Second Cold Starts: Optimized with non-blocking database migrations, deferred warmup, and phased rendering.
Is Wammy completely free?
Yes. Wammy is 100% free and open-source under the Apache License 2.0. There are no paid tiers, paywalls, third-party advertisements, or tracking telemetry.
What are the system requirements?
- Operating System: Android 8.0 (Oreo) or newer (API level 26+).
- Supported Architectures: 64-bit ARM (
arm64-v8a), 32-bit ARM (armeabi-v7a), and x86/x86_64 for emulators. - Storage: ~50 MB of free storage for the base application, with additional storage depending on your downloaded chapters and offline reading cache.
How is my reading data and privacy handled?
Wammy does not collect, transmit, or monetize your personal reading habits:
- All library databases, reading history, and bookmarks reside locally on your device.
- Optional Cloud Sync connects directly to your private Google Drive AppData folder using Google's official OAuth tokens. The developers never have access to your Google account or backups.
- Tracker integrations (AniList, MyAnimeList, Kitsu, etc.) communicate directly with the respective third-party APIs from your device.