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R21 User Reviews

R21
R21
CAVES BOOKS LTD.
📚 Education

Is R21 Safe?

Not enough ratings yet to assess R21.

Is R21 Legit?

R21 appears to be a legitimate app. AppsHunter Legitimacy Score for R21 is 80/100.

Based on 80 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Most RecentHighest RatedLowest Rated
Top Phonics
Top Phonics

by Seed Learning, Inc

📚 Education
Free

R21 vs Top Phonics

0 / 0Score
no / noADS
no / noIn-App Purchase
free / freePrice
EZTalking AI English Learning
EZTalking AI English Learning

AI pronunciation suggestions.

📚 Education

(5)

Free

R21 vs EZTalking AI English Learning

0 / 2.8Score
no / noADS
no / noIn-App Purchase
free / freePrice
HJJ GO｜All-in-One Learning App
HJJ GO｜All-in-One Learning App

Play & Learn Go Anytime

📚 Education

(11)

Free
In-App Purchases

R21 vs HJJ GO｜All

0 / 4.1Score
no / noADS
no / yesIn-App Purchase
free / freePrice
Math Cats
Math Cats

Grade 1-6 Math Practice

📚 Education

(3)

$5.99

R21 vs Math Cats

0 / 5Score
no / noADS
no / noIn-App Purchase
free / $5.99Price
Ann Buddy
Ann Buddy

For parents and school

📚 Education
Free

R21 vs Ann Buddy

0 / 0Score
no / noADS
no / noIn-App Purchase
free / freePrice
Interactive science 2nd
Interactive science 2nd

by Language World Co., Ltd

📚 Education

(1)

Free

R21 vs Interactive science 2nd

0 / 5Score
no / noADS
no / noIn-App Purchase
free / freePrice
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