Chouseisan
Chouseisan Summary
Chouseisan is a free, ad-supported iOS app in Productivity by Mixtend Inc.. Released in Oct 2023 (2 years ago). It has 27K ratings with a 4.60★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 101K monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store last updated Sep 7, 2026
Recent activity: 194 new ratings this week View trends →
SDK intelligence: AppGoblin detected 4 development tools(e.g. nanopb), 2 ad networks, 1 analytics: attribution,and 1 analytics: product integrated into Chouseisan. View full SDK list →
Chouseisan SDKs Summary
Chouseisan was last scanned for SDKs on 2026-07-18. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
AppsFlyer
Google
AdMob
nanopb
OpenID
Flutter
Firebase4.6★
Ratings: 27K
Screenshots
App Description
Chouseisan is a free and easy to use scheduling application that streamlines scheduling.
By streamlining scheduling, you can organize all kinds of events smoothly.
■ One of the largest scheduling services in Japan
This is the official application of Chouseisan, one of the largest scheduling applications in Japan with over 8 million monthly active users.
■ Streamlines scheduling for all types of events
The simple user experience makes it easy for anyone to use, and it can be used for a wide range of itinerary coordination from private to business situations.
■ Just share the URL with your guests to schedule an event.
You can create an event page easily by simply entering the name of the event and possible dates. In addition, the URL of the event page can be shared with guests via chat, etc., for easy scheduling.
■ Completely free of charge
Chouseisan is completely free of charge.