RAIO

In-app purchases
3.5
211 reviews
50K+
Downloads
Content rating
Everyone
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About this app

RAIO is a mobile application where users can learn languages by studying sentences using the spaced repetition algorithm.

- Users can mine their own phrases
- Users can choose the time and hour to study
Updated on
Feb 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Messages
This app may collect these data types
Personal info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.4
200 reviews
Alejandro Liendo
October 15, 2024
Everytime I'm doing the studying sessions, the app crashes and I've to start again. It's really annoying.
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Kevin Balderas
March 13, 2024
It takes hours to load every time when I open the app and then hours to save my progress after works. Kind of disappointed 😞
1 person found this review helpful
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Yuly Viviana Garcia Garcia
October 14, 2024
Every day, when I'm half way through, the application closes and I have to start over. I dislike it, it wastes my time.
1 person found this review helpful
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What’s new

-Performance improvements
-Improved animation showing the current level
-Fixed Facebook login issue on iOS