One Calendar Reviews: Is It Legit?

Customer Experience

Positive experience80.6% of reviews
Neutral8.5% of reviews
Negative experience10.9% of reviews

~ Based on 833 written reviews from the US App Store.

What users say about One Calendar

Is One Calendar Safe?

One Calendar appears safe based on user ratings. AppsHunter Safety Score for One Calendar is 95/100.

This assessment is based on 20,752 user ratings, with an App Store average of 4.8/5.

Safety Analysis

95.4% of ratings point to a safe experience
3.2% of ratings suggest some concerns
1.4% of ratings point to a risky experience

~ Based on 20,728 App Store ratings for One Calendar.

Is One Calendar Legit?

One Calendar appears to be a legitimate app. AppsHunter Legitimacy Score for One Calendar is 93/100.

Based on 93 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Trash

download app went through the whole step by step and was hit with need admin to link which is dumb since outlook already has a calendar in the outlook app. So I figured well what’s the point if outlook already has calendar installed all my other accounts worked with no issue only outlook so I deleted it any app that requires you to go through this many hurdles is not a good app. I will stick with Spark less problematic.
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The best

Tested a lot of calendar apps, this one is the best, simple, beautiful, works perfectly on Android and IOS (paid version) and with a great support team.

Cross Platforms

Very annoyed that I have to purchase premium usage on each platform I use (ie: paying to use premium on my PC and paying again to use it on my iPhone)

One Calendar app

One of the best calendar apps and it just works. Used many and this bar far works the best with lots of features

Fabulous calendar

This easy to use calendar syncs everywhere and a wonderful way for a family to share a calendar.
Team/App support is unprecedented and beyond amazing.

iOS 27

No longer allows events to be added since iOS 27. Hopefully the developer will release an update soon.

Stopped working

Always loved this but hurry up and fix it, won’t work with the new IOS27 I’m now unable to add any appointments

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!

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.

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.
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Simple. Helpful.

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

MUCH MORE VISUALLY PLEASING

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

NOT Fair, free for Mac $5.99 for iOS..

This seems like a nice capable calendar app but there is no capability to easily transfer your account access from one platform to another, you have to manually enter access codes, not a show stopper but annoying..
When I started working this on MAC, I liked it. Little did I know that when I wanted to use it on my iPhone it’s free to download but there are some very necessary features that you have to pay for like changing calendar colors (if you have more than one persons calendar displayed).
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Hate that they always ask for a review

Above reasons

Love It So Far

I like this calendar a lot. Very easy to schedule appointments.

Just missing widgets

Great app but I can’t find any widgets for my MacBook.

Some widget stopped working

I have a paid subscription since I really like this calendar. For some reason, the widgets don’t always work. I have tried to delete it restart my phone reloaded it and synced it but it’s still happening. Other than that, it’s a great app.

Can't restore license

I love this app I previously brought it but it won't let me restore its saying I have never purchased which I have... It's a good app but I need help please

Five stair

Five stair

Like it

The features I love about this is that we’re able to sync our older calendars, use across our family, etc. etc. Love.

What I wish it had was a button for “Today” to take us back quickly (like iCal).