Russian Thesaurus is a free offline dictionary app for Android devices developed by TTdictionary Offline. It has a user-friendly interface and covers over 370,000 words. The app is very efficient, fast, and performs well. It offers high-speed search and search filters such as search suffix, prefix (start and end). The app also provides voice recognition (Text-to-speech engine) and lets you mark words as favorites.

In addition, you can create bookmarks and add words to your favorites. You can save scanned words in stories by day, month, etc. The app allows you to share words in other applications and sound out a word or selected text. When you click on a word, the description window opens, and you can wrap and unwrap the description window function swipe. The app also has a search option, audio, and the possibility to share a word selected in the Description window.

The app offers several settings such as the option to change the text size, interface color change, cleaning option lists of bookmarks, favorites, and history. You can change the display color by double-clicking on the buttons to increase or decrease the volume. The app requires free memory of more than 195 MB. However, it is a great app for people who need a reliable offline dictionary with a vast library of words.