Phase4 Mobile, Inc.

Founded in 2014, this developer has established a strong presence in the mobile app market with 11 published applications. Since launching their first app "Sleep Sounds HQ" from 10 April 2014 in the Health & Fitness category, they've expanded into Medical, Health & Fitness sectors, demonstrating versatility in app development.

Their portfolio has garnered over 76K reviews across all apps, maintaining an impressive average rating of 4.7 / 5 stars.

Notable releases include:

🥇"Soothing Sleep Sounds" - Their most reviewed app with 33K reviews and a 4.8-star rating, released in 29 June 2014 in the App Store.
🥈"Rain Sounds HQ: sleep aid" (Medical) - 25K reviews with 4.8 stars, released in 10 August 2014 in the App Store.
🥉"White Noise HQ: sound machine" (Health & Fitness) - 11K reviews with 4.8 stars, their debut app from 27 August 2014 in the App Store.