Risk of Rain 2: Index is a free reference tool application for Android users developed by sharpsan. The app is designed to provide detailed information about different items and equipment in the game. It is a convenient tool for players to access information quickly while playing the game.

The app has a user-friendly interface with a dark theme, making it easy to use even in low-light conditions. The search filtering feature allows players to find specific items or equipment quickly. The app also has a quick-jump to categories feature that makes it easy to navigate to different sections of the app. Additionally, the app includes lore, allowing players to learn more about the game's backstory.

One of the most impressive features of the app is the availability of multiple language translations. The app is available in English, German, Spanish, French, Italian, Portuguese, Turkish, Russian, Japanese, Simplified Chinese, and Korean. This feature makes the app accessible to players all over the world.

In conclusion, Risk of Rain 2: Index is a great reference tool for players of the game. Its simple and straightforward interface, search filtering, and quick-jump to categories make it easy to use. The availability of multiple language translations is also a significant advantage for players from different parts of the world.