studio.ninka

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Apps: 4

Total installs: 77K

Avg rating: ★ 2.89

Ratings: 282

Latest release: May 7, 2026

How this developer operates

Carrier title Sleep Screen holds 99% of the developer's installs — a one-app developer
Hit rate 0% of launches reach 100k installs (0 of 4 at least 30 days old)
Release rhythm a new app every ~3.8 years on average
Maintenance 0 of 4 apps updated in the last 90 days · last update 185 days ago

All apps

App	Style	Rating	Installs	Released
Sleep Screen	Tools	★ 2.9	50,000+	Dec 11, 2014
Sleep Screen EX	Tools	—	500+	Feb 6, 2020
ZeroLevel - Pro Spirit Level	Tools	—	50+	May 6, 2026
RecapPlay - Audio Player	Business	—	10+	May 7, 2026