One Calendar

Developer: Code Spark

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2.8M installs

55.8K ratings

189.3K monthly active users

$<10K monthly revenue est.

IAP 100% · Ad 0%

Install Trends

Weekly +667

Declining

Monthly +2.9K

Declining

One Calendar Summary

One Calendar is a free, with in-app purchases iOS app in Productivity by Code Spark. Released in May 2018 (8 years ago). It has 55.8K ratings with a 4.71★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 189.3K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store last updated Jul 10, 2026

Recent activity: 11 new ratings this week View trends →

One Calendar SDKs Summary

App not yet scanned for SDKs.

App Details

Store ID: 1238379385

First Released: 2018-05-01

Store Last Updated: 2026-07-10

App Store Category: Productivity

In-App Purchases: Yes

Ads: No

Price: Paid

Website: onecalendar.nl

App Store

Crawl Status: Success

AppGoblin First Crawled: 2024-11-18

AppGoblin Last Crawled: 2026-07-17

Ads & App-Ads.txt

App does not have ads.

4.71★

Ratings: 55.8K

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Screenshots

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.