FTB App vs Thendrask Launcher

FTB App is Feed The Beast’s desktop launcher for finding and managing modpacks, then playing them. It is the officially supported way to get FTB modpacks, and it also connects to CurseForge for discovering and installing its packs. The app supports NeoForge, Fabric, and Forge, and lets users create and share their own modpacks or add, remove, and update mods. Packs stay in separate instances, with automatic updates and controls for Java version, arguments, and RAM. Users can install FTB modpack servers through the app or a Linux command line. The app runs on Windows, macOS, and Linux; Windows uses Overwolf, while the other desktop versions use Electron without another background application. It is free to use and contains ads supporting Feed The Beast. Authentication is required to use the app, and playing Minecraft requires a Minecraft account. Its source code is available through GitHub.

Thendrask Launcher is a free, open-source desktop launcher for Minecraft modpacks. Users can browse approved Modrinth and CurseForge catalogues or import MRPACK and CurseForge ZIP files. It supports separate instances and custom packs using Fabric, Forge, NeoForge, or Quilt, with dependencies installed automatically. Java runtimes are downloaded for each Minecraft release, and users can set custom Java paths. The launcher verifies required files, snapshots packs before updates, and rolls back failed updates automatically. It also supports portable backups, broken-file verification, and sanitized diagnostic bundles. Users can add friends by code to see who is online and what they are playing. Windows is available, while macOS and Linux are in public beta. The launcher is built with Electron and React and starts the official game without modifying Minecraft; it is not affiliated with Mojang or Microsoft. Modrinth and approved CurseForge are its only public provider modules. Download and use cost nothing under the MIT license; optional support tiers are $3 a month and 50.00 USD once for lifetime support.