R21 is made and published by CAVES BOOKS LTD.. AppBrain is an independent app data site and isn't affiliated with CAVES BOOKS LTD.. The app name, icon, screenshots and description belong to CAVES BOOKS LTD. and are shown as published on the App Store.
About R21
R21 is an education app developed by CAVES BOOKS LTD..
User Ratings
The app has no ratings yet.
App Information
R21 is freely available from the App Store. The app size is 114.17 MB. The latest version available is 1.24. The last update was on December 5, 2023.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since February 2017.
Screenshots
Also available on Google Play
Alternatives to R21
More from CAVES BOOKS LTD.
Changelog of R21
No changelog data
Developer information for CAVES BOOKS LTD.
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App Store Rankings for R21
Technologies used by R21
Frequently asked questions about R21
Is R21 free?
Yes. R21 is free on the App Store.
Is R21 still available?
Yes. R21 is on the App Store, and the last update we saw was on December 5, 2023.
How large is R21?
R21 is 114.17 MB.
Is R21 suitable for children?
App Store rates the content of R21 as suitable for everyone.
Who made R21?
R21 was developed by CAVES BOOKS LTD.. It is listed in the education category on the App Store.
What are the best alternatives to R21?
People looking at R21 also look at these education apps: EZ Test - TOEIC® Writing, TutorABC Junior, Chinese Track, MyET My English Tutor, English Talk, Chat with AI Bot.