Invisible Foste

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Apps: 2

Total installs: 2.9M

Avg rating: ★ 4.03

Ratings: 3.4K

Latest release: Nov 2, 2026

How this developer operates

Carrier title Calendar holds 100% of the developer's installs — a one-app developer
Release rhythm a new app every ~2.7 years on average
Maintenance 2 of 2 apps updated in the last 90 days · last update 4 days ago · updates every ~7 days

App	Style	Rating	Installs	Released
Calendar	Productivity	★ 4.0	1,000,000+	Feb 17, 2024
Alarm Clock & World Time NEW	Productivity	—	50+	Nov 2, 2026