USEFUL-WORKS

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Apps: 11

Total installs: 686K

Avg rating: ★ 3.63

Ratings: 605

Latest release: Dec 25, 2025

How this developer operates

Carrier title QR Code Reader - Simple,Easy a holds 95% of the developer's installs — a one-app developer
Hit rate 9% of launches reach 100k installs (1 of 11 at least 30 days old)
Release rhythm a new app every ~259 days on average
Maintenance 0 of 11 apps updated in the last 90 days · last update 321 days ago

All apps

App	Style	Rating	Installs	Released
QR Code Reader - Simple,Easy a	Tools	★ 3.6	500,000+	Dec 7, 2018
道の駅 - 旅行や道の駅巡りなど全国の道の駅のデータを網羅	Travel & Local	—	5,000+	Mar 4, 2019
対義語・反対語辞典	Education	—	5,000+	May 21, 2019
四字熟語辞典	Education	—	5,000+	May 17, 2019
人名ジェネレーター	Entertainment	—	1,000+	Apr 3, 2019
数値抽選	Entertainment	—	1,000+	Jun 10, 2019
日本100選	Travel & Local	—	1,000+	Nov 25, 2018
毎日格言	Lifestyle	—	500+	Jun 23, 2019
Lucky Numbers	Entertainment	—	100+	Dec 4, 2025
QR Reader - Simple And Easy	Tools	—	100+	Dec 25, 2025
懐中電灯	Tools	—	10+	Apr 11, 2019