ZAIZEN Co., Ltd.

Founded in 2011, this developer has established a strong presence in the mobile app market with 11 published applications. Since launching their first game "Fly! Cola" from 21 July 2011 in the Games category, they've expanded into Lifestyle, Utilities, Entertainment, Games, Food & Drink sectors, demonstrating versatility in app development.

Their portfolio has garnered over 58 reviews across all apps, maintaining an impressive average rating of 3.0 / 5 stars.

Notable releases include:

🥇"StampCalendar DX" - Their most reviewed app with 21 reviews and a 4.5-star rating, released in 15 May 2012 in the App Store.
🥈"Stamp Calendar for Girls+" (Lifestyle) - 18 reviews with 4.7 stars, released in 31 May 2013 in the App Store.
🥉"Stool Checker" (Lifestyle) - 8 reviews with 4.9 stars, their debut app from 18 September 2012 in the App Store.