PROTO

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Apps: 2

Total installs: 3.9M

Avg rating: ★ 4.36

Ratings: 14K

Latest release: Sep 29, 2026

How this developer operates

Carrier title PROTO - circuit simulator holds 99% of the developer's installs — a one-app developer
Hit rate 50% of launches reach 100k installs (1 of 2 at least 30 days old)
Release rhythm a new app every ~4.9 years on average
Maintenance 2 of 2 apps updated in the last 90 days · last update 10 days ago · updates every ~14 days

App	Style	Rating	Installs	Released
PROTO - circuit simulator	Education	★ 4.4	1,000,000+	Oct 25, 2021
PROTOSchem - electrical wiring	Tools	—	10,000+	Sep 29, 2026