One Calendar

Code Spark Productivity In-app purchases

Manage all your calendars in ONE place!

Rating: 4.7; 64.8K ratings
Downloads: 1.8M+; on Google Play
Price: Free; In-app purchases
Updated: Oct 16; 2026 · v10.100.2

Screenshots

About One Calendar

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Facebook 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 (Android, iOS and Windows).

What’s new

Version 10.100.2 · Updated October 16, 2026

Upgrade edge to edge design

User reviews

Pauline Chan

Very easy to use

Daos Loven

Absolutely a fabulous calender! I'm trying to get my regular Windows default calendar to be deleted so I can have "ONE CALENDAR" to be my default calendar, forever!!!!! It is an extremely extremely excellent, important and truly a must have!!!! Seriously though 😂!

sheila Toner

Easy to use. Offers day, week, month view

Devon Priemus

Good, works with apple calenders.

Arnold Ramming

I've been using this app for almost two years. It's given me what I needed. As other reviewers have commented, it would be helpful to be able to edit which calendar an event is posted to after the event has been created. I frequently forget to check which calendar the event is going to because I get so wrapped up wi...

Gilbert Irvine

Brilliant app brings all my stuff together.

Frequently asked questions

What platforms is OneCalendar available on?

OneCalendar is available on all platforms - Android, iOS, and Windows.

What calendars can I view with OneCalendar?

With OneCalendar, you can view all your calendars including Google, Live, Outlook, iCloud, Exchange, Office365, Facebook, and more.

App details

One Calendar is a free Productivity app for Android with 1,000,000+ installs on Google Play and a 4.7/5 average rating from 64,875 ratings. It was released on April 27, 2018 and last updated on October 16, 2026. It's developed by Code Spark. It requires Android 6.0 or later. The app offers in-app purchases.

Category: Productivity
Rating: 4.7 / 5 (64,875)
Installs: 1,809,394
In-app purchases: Yes
Ads: No ads
Version: 10.100.2
Requires Android: 6.0
Content rating: Everyone
Released: April 27, 2018
Last updated: October 16, 2026
Developer: Code Spark

View on Google Play

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Alternatives to One Calendar

Looking for apps like One Calendar? Here are 6 similar Android apps on Google Play. The highest rated is Simple Calendar Pro (4.7/5), and 5 of the 6 are free to download.

One Calendar vs. alternatives
App	Rating	Price	Installs	Last updated	Compare
One Calendar	4.7 / 5	Free	1,000,000+	Oct 16, 2026
Simple Calendar	4.5 / 5	Free	10,000,000+	Feb 16, 2026	Compare
Simple Calendar Pro	4.7 / 5	1.39 USD	500,000+	Oct 3, 2023	Compare
DigiCal Calendar Agenda	4.4 / 5	Free	10,000,000+	Jun 3, 2026	Compare
Calendar: Meeting & Scheduling	3.9 / 5	Free	50,000+	–	Compare
Calendar 2023 :Diary, Holidays	4.4 / 5	Free	1,000,000+	Jun 23, 2026	Compare
Taskito: To-Do List, Planner	4.3 / 5	Free	1,000,000+	Oct 21, 2026	Compare

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