Download One Calendar V10.110.2 APK Free, Mod Premium

Has the usual functionality I need for multiple calendars in the upgraded version (different colors for different calendars), however the live tile for monthly view is entirely useless showing only number of appointments with no times or appointment details. When pressing the appointment date, it only opens the calendar instead of day. As such, I've switched to Outlook calendar for my live tile. I regret purchasing the upgrade because of this lack of functionality, and therefore only 3 stars.

So far so good. Using Synology and seems to be working well. It has only been a few days so time will tell.

Mostly works. Fails to bring in all of my Vivaldi calendars.

Works well and consistently

WHY DOES IT NEED PERMISSION TO ACCESS MY CONTACTS WHEN I DONT GIVE A DAMN ABOUT BIRTHDAYS REMINDERS???

Excellent

As calendar apps go it's OK, it works.

Great ! good point with the year view 👍🏼

This app has literally saved my life as a working single mom ☺️

Works great in syncing with Apple calendar.

Great App! Seamlessly linked CalDAV calendar provided by domain host with Thunderbird email client on PC and Android and synchs really fast. Has made MS Outlook completely redundant. Am requiring my employees to use it too as I migrate away from MS Office altogether. Best of all doesn't have any spyware as far as can tell.

good

Superb! Use this as a slave to my main family calendar on my Mac. Instant two way sync. Excellent 😎

the calendar I use to run my life by, I love the way it takes appointments from several different calendar apps and consolidates them down into an easy to use easy to navigate platform.

I've used this app for a long time and it worked great but recently there have been changes behind the scene and One Calendar CalDAV sync is no longer working. All attempts to raise a support case have been unsuccessful. I wish someone would respond to my queries.

your questions miss the point. it is a good start but it is capable of much more.

Helps me visualize my different roles where they may conflict. I have been using the desktop version for 2 years and I juust discovered there is a mobile app! It's super useful to add and move things around my calendars without having to open my laptop or switch accounts in my different source calendars. A few features could be improved/added like being able to edit future occurrences of a series rather than the whole series to keep a record of previous instances.

perfect

at last an easy and good solution to sharing my calendar on 4 devices. 18 months later I still rate it highly.

This calendar syncs perfectly with Google calendar. I like the different colors for different kinds of events.

Great calendar

I've used this for a while and for an unorganised person its fantastic, syncs across all my devices etc

Great to combine all of your calenders. I also use a widget to see my combined calendar on my phone home screen.

Excellent so far. So much easier to use than Google/Samsung stock apps, no need to set up subscriptions to non-Google accounts, just add them and go. App is attractive, very quick and intuitive.

SIMPLE TO USE. WISH ATTACMENTS COULD SYNC AS WELL

helpful for reminders, organising the day etc

Stopped working with Caldev Zoho calendar out of nowhere. Useless to me now.

this app in android is crazy good but then it's windows app is now bad due to they adding a paywall.

different theme and design aesthetically pretty fabulous better app interference make it use simpler way.

all I need, with clarity

easy sync for two different types calendar

Good

Works well with Outlook and Icloud calendar sync

makes life easier

great app masha'Allah. best thing I is it works on every device whether laptop, desktop or smartphone. so I get easily remind what I've to do rather then what social media distracted me do.

Nice! A truly rare experience if not a miracle - An app that works! And not only works, but does it well, easily, and needs very few improvements. It already let's you add attachments and repeat events. (a complicated request: it would be helpful to be able to manage an event that occurs multiple times within a single day and also following or even multiple different days, all within a single entry. Useful for common things like training sessions, orientations, etc)

I like the app but have had syncing errors for months and have not been able to get any tech help from them to fix it

the best calendar app ever, perfect sync between phone tablet pc (samsung, xiaomi, windows) quick drag and drop appointments, and the occasion version is just incredible. Easy 5/5 stars

Great option to link and sync multiple calendars across different platforms.

great app, can add an apple account to my android phone so that's a win for me

I have used this calendar on many phones, for years now. It provides all the functions I require and works well.

Amazing organizer

integrates with the Outlook calendar and with my wife's Outlook calendar. easy to use.

cannot link to other calendars otherwise 5*

Has been fantastic to use and can use on any brand of mobiles and operating systems.

Wish I could edit the TIME for a recurring event to later in the day. Editing doesn't allow that. Instead, I have to RECREATE THE WHOLE EVENT. 🥺 So much for the ability to "edit." Can you please add the ability to have several reminders❓ Also, can you add the ability to add an image file? Like, for an upcoming event, a photo or a photo of a letter that goes with that event? That way I don't have to dig through thousands of my photos. Please make these abilities happen.

Great reminder

Great app, very dedicated developer

saved my life <3 seamless integration just as I needed

it gets better all the time

Best Calendar around

I love it and have been using it for years. I love the integration with other services to keep my calendar up to date.

great app for Nextcloud

I love how it is set up and how it connects with Google so the Google let's me know what I have for the day.

This app is great. Only feedback is to incorporate categories (colors) from Outlook.

Better than Google Cal

Very easy to sync with Nextcloud and Thunderbird.

Someone has hacked this app and adds an "auto pay" notice scheduled today or tomorrow supposedly to buy a gift card for a random merchant that will allegedly be charged to your PayPal account complete with the "hook" phone number for you to call if you believe there's an error. ...and get one every couple days.

Well working customisable app supporting multiple accounts.

good

The app is really simple to use. It helped me finally get away from Google calendar

I am not a big reviewer person, but when I switched to the pixel lineup I needed a calendar that would allow me to add and sync with the rest of the family and this has done great. I do wish the widgets were a bit better or that the design language was closer to stock android, but it works great.

Started self hosting NextCloud and been using One Calendar as the android app. Super easy set up, pulls in my scheduled tasks too. It just works and haven't had a single issue with it

Awesome!!!

all good so far

great program

does a great job at combining multiple calendars into one.

used for years but can be hacked. I have spam entries for using PayPal to buy but coin. one c developers have never responded to reports. the entries do no harm as they lack data to complete a buy, but their spam entries cannot be deleted.

Love this calendar. It's easy to use and lots of colours for different appointments and events.

awesome

easy to use and graphically pleasing.

the app is so efficient

Deleted the app. Didn't sync with the calendar in my Outlook for Android - in other words, useless.

seamless integration across three platforms is super nice !

UPDATE 8 23 2026 used for years its syncs with windows 10 all the back to win 7. its really good only one thing needs added, Google allows you to set multiple alarm times which is wonderful for busy people. if you only have 1 or 2 appts its no big deal but ifbyou have 10 or more its a life saver . bigger easy to read list and month view above it. it syncs with Google outlook icloud yahoo

15/10 can sync with the app on your computer to have access on both ends and edits you schedule as one from either direction. It's perfect for the ADHD inclined.

surprisingly good

Excellent calendar

Not perfect but very good. Better or more free automatic syncing for the widget would be the best!

excellent speed syn with different googke calendars

Thoroughly prefer to use this calendar app. It allows backgrounds, colours for events, notifying other when people and inviting them, and more. I only wish, when I delete an event that is part of a series,it asked if I wished to delete all future events, rather than just just this one event or the entire series.

All calendars in one place!

works well. let's see how it holds up

👍❤️💚

Provides what Google Calendar is missing. I need to keep an iCloud calendar (living in a household with iPhone family members). They don't want to use Google and I've both Google and iCloud calendars to maintain and share. Google calendar app doesn't support non-Google accounts. This app supports any calendars. I would make it better with an updated design which aligns more with the Google UI design principles. It looks cluggy & 3rd party but it works.

Simple and easy to use!

👌

it's great

Hands down the best calendar syncing app for multiple devices and platforms. I use it on all of my windows, Apple and android devices.

easy to set and combine several calendars

The calendar works well for setting up appointments, times, and reminders, but the emoji system needs work. I use emojis frequently, but having to constantly delete an old emoji from the selection box just to add a new one—plus navigating in and out of the menu to make it stick—is really annoying.

Clean and easy to use Calendar Widget I'm using on my home screen. Handles multiple calendars inc. Exchange & Gmail.

Fundamentally it's a perfectly fine calendar. but I've been using Google calendar for years, and in comparison, this one is way too basic and not nearly customizable enough.

been using for months with no problems

Easier than Google App

seems pretty good calendar app

Awesome app

One Calendar is by far making my business and personal life a lot more organized. I highly recommend it. No glitches on my end.

Works ok as a basic calendar and syncronises with my Apple calendar just fine.

wonderful!

The best Calendar app by FAR!

Would really like ability to snooze reminders and be able to invite other people to my calendar event. Syncs with many different calendar providers. Lots of feature & appearance customizations. With NextCloud calendar, do not need Google as central location of my calendar. Now I can sync my calendar on any mobile device AND desktop without sharing my data with Goog.

Just works, easy to set up with Vivaldi account and no annoyances, simple and clean, but still beautiful design

doesn't have the sync issues that the default calendar app on my galaxy was having

works great. very pleased.

absolutely love this app, very easy to share the information in your diary with a 3rd party.

I've used this app for a couple of years now and have it installed on both my phone and laptop. It's an invaluable tool, simple to use and very helpful in keeping track of daily events both at home and when away. The sync between the two is almost instant and adding new events quick and comprehensive. Top marks too to the developers whom I contacted recently and who very kindly solved my query. I particularly like that I can colour code appointments - the dog has his own colour too! Blocking out holidays is always a pleasure and it is helpful to be able to see how everyone's dates interlink. Great job, guys. Here's another five stars *****

I have been using this app for the last 3 years and disabled the calendar I got by default on my phone. I use it alot

It's quick and responsive. I have nothing negative about this app

Love it. So pretty and practical.

Easy to use, good interface, works well with all my calenders

Nice

this app has really helped my productivity. thank you very much

I hand been maintaining two calendars for quite some time. Finally, I found One Calendar. All my appointments are now in the same place! Great way to ensure I don't miss any commitments during my day.

really smooth and brilliant to link all calendars

This is really nice. connecting accounts was simple and straightforward. Not bloated rather smooth. Ended up getting OneTask as well. Nice work!

clear and easy to use. like google calendar, but easier to see the words for each timeslot which means I can actually read and manage my schedule. I was double booking and missing appointments for years before this app.

Finally deleted my Google Calendar in favor of One calendar. It works seamlessly with my GMX calendar; there I can synchronize my work and personal calendars. Just one small thing I wish One Calendar had is the choice of having not just one appointment reminder. Sometimes I need a reminder a week before AND another reminder just one day or 30 minutes before the appointment.

Nice for keeping together my Google and Outlook calendars in the same calendar.

very reliable, and sync flawless

I use this calendar cause the Outlook interface is confusing

clear and simple

Works great!

Can follow my wife's calender now fantastic!

This is the best calendar app I have ever used. A fantastic interface. Easy to see all appointments.

sync problems started recently, doesn't matter if its on or off. keeps deleting anything I try to save now I feel like I shouldn't have gotten pro.

really easy to add, change or delete appointments

Excellent app which always works and has become a reliable long term feature of my daily life, excellent

I love this app! It automatically syncs with my Yahoo calendar on my computer.

great app and very easy to use. would recommend

Excellent 👍🏻

works well

its the best, most staight-forward calendar app out there. i wish you had a similar app for notes as well. u have OneCalendar, OneTask, mind as well make OneNote!

love the simplicity of this app.

Only one that actually works! Thank you to the developer(s) for this app! I am a family caregiver and this truly helps my family to coordinate. thank you again😀💯

I actually found this calendar very useful and made it my main event and task organiser.

great calendar app

Best calendar for sync with various calendar

this app speaks caldav natively, bypassing the entire unreliable device-managed accounts sync and my calendars finally sync properly

Really great app, different appointments can be in different colours. 2019 2026- I still love this app but in the last 6 months the app when opened to log an appointment has gone back to 2022 so you keep having to scroll forward to the current date...not sure why but really annoying.

I have used this for years. It gives the clearest layout of any calendar app I have seen, about the only one where I really see all my appointments. Easy to use and reliable. I paid a small one off fee so that I could have different colours for different calendars, which was well worth it.

OneCalendar has kept me on track for over three years!

😀

Would not connect to my iCloud, despite following the directions.

A great way to connect your apple calendar to android.

successfully combines apple calendar on my Samsung phone

Brilliant, I have this synched on all my devices and it is great for keeping me up to date so I don't forget things. It is well worth paying the small, one off fee to get all the different coloured categories.

Great Calendar Appt, been using for years.

OneCalender has integrated options that allow you to personalize it. Easy to add or update events.

works well and integrates Google / Outlook calendars plus other users calendars

Works well and easy to use. I have been using this for over 5 years and this has been a lifesaver for scheduling appointments. So far it has been better than using a paper calendar. When I have to change a date or time it is easy to go in and make the edits without having to erase or even use whiteout. I like that it gives you the option to have the calendar remind you in advance when your appointment starts or when your event is starting.

Font is WAY to small for the month widget view. I can barely read my appointments. I tried changing the font size in the android tablet settings and it didnt change the font at all. Add a setting to adjust the font size in the month widget please.

Love it, great interface and real smooth

BUT can I see it on my Samsung watch?

Love the mobility of it. Continues to reveal features to make organizing my life easier.

please stop with the annoying feedback reminders. i would have given it 5 stars but this is for those reminders..

works great with my Android.

Really useful for several years. Tonight, however, all my appointments have suddenly vanished....

I like this calendar because it's easy putting your appointments and also you can sync this on all other devices as well.

Seamless, User Friendly App

Consistently good, reliable. Recommend. Perfect for multiple shared calendars and work and personal. Better than Outlook and syncs perfectly with Outlook too. Oh I WISH CodeSpark had a similar app for CONTACTS that syns sooo seamlessly as One Calendar.

The best calendar app on android by a long way.

This calendar solved all sync issues. Other calendars rely on android built-in sync system, which is sometimes unstable. I use shared calendar with my wife. Although both of us have calendar sync enabled, we had sync errors many times and our calendars were out of sync. With One Calendar I forgot about such sync issues.

It does the job. It syncs with other calendars. It has blue.

very easy to set up and configure..does just what it says it'll do and is visually pleasant to look at.

usual just wish it had a visually more appealing monthly calendar face like Google's but this app is the go to

Good, clean interface, syncs well with my Android phone.

love the nextcloud integration.

Nice app

I love One Calendar for its versatile, simple-to-navigate interface.

Excellent calendar app, syncs perfectly with Nextcloud & Google calendar.

👍

keeps me organized and it's colourful

I really liked it until I discovered that you can only set and see events 2 years into the future. Apart from that it is clean and straightforward to use.

great app

I was looking for a app that would sink with my android and my laptop, so far this app meeting the need.

please add in more colors

Very good. Used just s short time yet, but working well so far. Haven't found anything better so I stay.

superb calendar!

Very good app. Easy to use.

It's good

amazing. good work.

Makes me organized. Thanks a lot. 💛

I love the iCloud integration, but the design is outdated.

keeps me on track daily

Does not work with Proton calendar. Worked nicely before I decided to migrate off of Google onto Proton. But now, sadly, it doesn't work with Proton calendar.

My favorite calendar app. works flawlessly.

Best calendar available for Windows and Android.... Hopefully soon in Linux as well?

Perfect for me 💙

Definitely the most reliable calendar app out there. Just one thing would make this app way above others. If you were to add a scrollable day slot in month view instead of putting +2 for more events in one of your next up dates, that would be so helpful. Everyday has more than 4 events on my calendar. Having to click on the day spot then having to click out of the day spot makes it easy to miss events because I have to click on everyday to make sure i am not missing any events. 🙏 👍

App on Android mobile UI does not connect Google or Microsoft accounts. After having trouble syncing the app on my Android device with the appointments recorded on the app on my laptop, could not reload any of my mobile accounts. I have a paid premium account and I cannot reload my google, microsoft calendars to my Android mobile device. There used to be a simple email contact form for malfunctions, but that's gone now too.

Just what I was looking for!! Easy to use and I can keep track of a lot of information!

useful

very good app

Simple calendar app that does everything I expect from it.

Without doubt the best Calendar App I have used and I have used for many years

customize and varient in Theme is genuine and convenient

Making a review so the app stops asking me App still asking me to rate app. Remove this feature to get 5 stars

Sehr gute App: sehrhilfreich uns stabil. Verwende schon seit 3 Jahren ununterbrochen. 2026 still using it in multiple divices!

the best calendar so far!