Smart Tool Studio

Founded in 2017, this developer has established a strong presence in the mobile app market with 12 published applications. Since launching their first app "Second Phone Number" from 06 January 2017 in the Utilities category, they've expanded into Graphics & Design, Games, Business, Utilities, Photo & Video, Social Networking sectors, demonstrating versatility in app development.

Their portfolio has garnered over 211K reviews across all apps, maintaining an impressive average rating of 4.1 / 5 stars.

Notable releases include:

🥇"Phone Cleaner・AI Clean Storage" - Their most reviewed app with 103K reviews and a 4.6-star rating, released in 17 August 2019 in the App Store.
🥈"Best Widgets 18 - Icon Changer" (Graphics & Design) - 39K reviews with 4.5 stars, released in 20 November 2020 in the App Store.
🥉"Second Phone Number -Texts App" (Utilities) - 32K reviews with 4.5 stars, their debut app from 06 January 2017 in the App Store.