The Japan Foundation

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Apps: 17

Total installs: 2.1M

Avg rating: ★ 4.27

Ratings: 5.4K

Latest release: Aug 19, 2026

How this developer operates

Carrier title Hiragana Memory Hint [English] holds 21% of the developer's installs
Hit rate 35% of launches reach 100k installs (6 of 17 at least 30 days old)
Release rhythm a new app every ~251 days on average
Maintenance 8 of 17 apps updated in the last 90 days · last update 37 days ago

All apps

App	Style	Rating	Installs	Released
Hiragana Memory Hint [English]	Education	★ 4.7	100,000+	Aug 19, 2015
IRODORI Practice	Education	★ 4.4	100,000+	May 7, 2021
Katakana Memory Hint [English]	Education	★ 4.3	100,000+	Sep 15, 2015
Kanji Memory Hint 1 [English]	Education	★ 4.2	100,000+	Nov 10, 2016
Hiragana Memory Hint [Indonesi	Education	—	100,000+	Sep 15, 2015
Kanji Memory Hint 2 [English]	Education	★ 4.5	100,000+	Feb 13, 2017
Katakana Memory Hint [Indonesi	Education	—	50,000+	Sep 15, 2015
Kanji Memory Hint 3 [English]	Education	★ 4.1	50,000+	Jul 3, 2018
Hiragana Memory Hint [Thai]	Education	—	50,000+	Jan 13, 2016
Challenge with Erin! Japanese	Education	★ 3.7	50,000+	Dec 15, 2017
Katakana Memory Hint [Thai]	Education	—	10,000+	Jan 13, 2016
Kanji Memory Hint 1 [Idn]	Education	—	500+	Aug 19, 2026
Kanji Memory Hint 1 [Thai]	Education	—	500+	Nov 10, 2025
Kanji Memory Hint 2 [Idn]	Education	—	500+	Aug 19, 2026
Kanji Memory Hint 3 [Idn]	Education	—	500+	Aug 19, 2026
Kanji Memory Hint 2 [Thai]	Education	—	100+	Nov 11, 2025
Kanji Memory Hint 3 [Thai]	Education	—	100+	Nov 11, 2025