JustJackStudio

How this developer operates

• Carrier title Kyiv Metro Helper holds 42% of the developer's installs
• Hit rate 0% of launches reach 100k installs (0 of 4 at least 30 days old)
• Release rhythm a new app every ~1.6 years on average
• Maintenance 0 of 4 apps updated in the last 90 days · last update 211 days ago

All apps

App	Style	Rating	Installs	Released
Kyiv Metro Helper	Maps & Navigation	—	5,000+	May 19, 2021
Kharkiv Metro Helper	Maps & Navigation	—	5,000+	Jul 16, 2021
Praga Metro Helper	Auto & Vehicles	—	1,000+	Jun 15, 2024
Toronto SubwayTime	Maps & Navigation	—	5+	Feb 10, 2026