One Calendar

One Calendar
Developer: Code Spark
Category: Productivity
1.3M installs
25.4K ratings
93.9K monthly active users
$<10K monthly revenue est.
IAP 100% · Ad 0%
Install Trends
Weekly +1.1K
Steady
Monthly +4.2K
Steady

One Calendar Summary

One Calendar is a with in-app purchases iOS app in Productivity by Code Spark. Released in May 2018 (7 years ago). It has 25.4K ratings with a 4.75★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 93.9K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Dec 12, 2025.

Recent activity: 20 new ratings this week View trends →

Data tracking: SDKs and third-party integrations were last analyzed on Mar 25, 2025.

Store info: Last updated on App Store on Dec 12, 2025 .


4.75★

Ratings: 25.4K

5★
4★
3★
2★
1★

Screenshots

App screenshot
App screenshot
App screenshot
App screenshot
App screenshot
App screenshot

App Description

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays.

OneCalendar is available on all platforms.