Happy old boy

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Apps: 3

Total installs: 71K

Avg rating: ★ 3.89

Ratings: 11

Latest release: Sep 9, 2026

How this developer operates

Carrier title Health Recorder - Heart Rate holds 90% of the developer's installs — a one-app developer
Hit rate 0% of launches reach 100k installs (0 of 3 at least 30 days old)
Release rhythm a new app every ~1.4 years on average
Maintenance 1 of 3 apps updated in the last 90 days · last update 43 days ago

App	Style	Rating	Installs	Released
Health Recorder - Heart Rate	Health & Fitness	—	50,000+	Nov 3, 2023
Audio Reverse™ - Reverse Play	Entertainment	—	1,000+	Sep 15, 2025
Joy Clean: Phone Cleaner	Tools	—	1,000+	Sep 9, 2026