One Calendar

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Free

In-App Purchases

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Features

Vision Pro support

Developer

Code Spark

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🧾$5.99

In-App Purchase↘︎

📌Ready

Reviews summary↘︎

⭐826

Reviews↘︎

📝23+ tags

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🔄6+ apps

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❓5 answered

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About

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

✓Integrates multiple calendar providers

✓Easy-to-read overview

✓Manage appointments and events

✓View birthdays

✓Cross-platform availability

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What users say

Summarized from real user reviews of One Calendar. Based on 21K reviews and a 4.8/5 average, it highlights the 6 positives and 5 negatives reviewers mention most about this Productivity app.

Positive things

🚀Easy to use
👍Clean and simple interface
👍Integrates multiple calendars
🚀Syncs across devices
👍Customizable colors and themes
👍Helpful for organizing schedules

Negative things

🐛Syncing issues
🐛Bugs and glitches
🔒Lacks security features
🔋Drains battery
👎Restrictive features in free version

See all reviews

What's New in One Calendar

10.0.100

August 11, 2026

Upgrade to NET10

In-App Purchases

$5.99

OneCalendar premium

OneCalendar premium license

User reviews

Misleading Features

I paid for premium badges on advertised features. Those features aren’t there. Now no reply from customer support. I want my money back!

8Len8

15 days ago

Does not sync

It will not sync with all of my calendars, though it says it does. This has caused me to miss important appointments. Do not waste your time on this calendar.

Origqtpie

a month ago

Have to pay for Premium for each device

This is the first app I’ve used that wants you to pay for each device you want to use the Premium version either Android or Apple. It would be nice to pay once and use on both iPhone and iPad. I haven’t tried adding new events, but it at least got my multiple calendars displayed correctly from the start. I hope there will be an option to change the widget theme soon.

Hfgfssdrandomsrvs

a month ago

Simple. Helpful.

I just needed everything in one place - one calendar does that and more. Worth a look!

JohnnyRed1818

2 months ago

MUCH MORE VISUALLY PLEASING

Much prefer this to Apples App. You can see more and it’s more customisable.

AngelDude77

2 months ago

See 821 more reviews

Alternatives

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by KOB MARKETING

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