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Challenge with Erin icon

Challenge with Erin Downloads & RevenueChallenge with Erin · App Store

Not in any tracked top chart right now.

Updated 7 Nov 2026 · rankings refresh through the day

DeveloperThe Japan Foundation Japanese-Language Institute, Kansai
CategoryEducation
PriceFree
Released
Rating★ 4.2 (5)
Version2.0.1
Age rating4+
First seen by us 24 Oct 2026

Challenge with Erin update history & changes

Last change · 3 events since 28 Dec 2017Full timeline ↓
Full timeline · 3 events
  1. 🆕
    Challenge with Erin first spotted by AppInsider
    Indonesia (found via developer)
  2. 📦
    Challenge with Erin version 2.0.1
    Minor bug fixes and performance improvements
  3. 🆕
    Challenge with Erin released on the App Store

Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.

Rating
4.2 ★
5 ratings
Measured

Challenge with Erin on the App Store

App details

App ID
1290748939
Publisher
The Japan Foundation
On the store since
Dec 2017
8 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Content rating
4+
Languages
1
EN
Size
304 MB
Also listed in
Card, Games, Word