One Calendar

Developer: Code Spark

Category: Productivity

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2.8M installs

55.7K ratings

198.6K monthly active users

$<10K monthly revenue est.

IAP 100% · Ad 0%

Install Trends

Weekly +2.8K

Trending

Monthly +11.4K

Trending

One Calendar Summary

One Calendar is a with in-app purchases iOS app in Productivity by Code Spark. Released in May 2018 (8 years ago). It has 55.7K ratings with a 4.71★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 198.6K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Dec 12, 2025.

Recent activity: 51 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 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: 1238379385

First Released: 2018-05-01

Store Last Updated: 2025-12-12

In-App Purchases: Yes

Ads: No

Website: onecalendar.nl

App Store

Crawl Status: Success

AppGoblin First Crawled: 2024-11-18

AppGoblin Last Crawled: 2026-05-28

Ads & App-Ads.txt

App does not have ads.

AppGoblin SDK Scans

Successful Last Crawled:

Last Crawled: 2025-03-25

Last Crawl Status: Failed

4.71★

Ratings: 55.7K

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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.