Calendar vs Calendars
Calendar (App A) is the better choice for Apple users due to its seamless integration with the Apple ecosystem, despite some user complaints about data loss and customization, while Calendars (App B) struggles with reliability and a restrictive free tier.
Calendar (App A) offers deep integration with Apple services and devices, making it convenient for existing Apple users, though some report frustrating data loss and limited customization. Calendars (App B) provides more visual customization and task management but is plagued by syncing issues, disappearing events, and a free version that severely limits core functionality.
Head to head
you are an Apple user looking for a deeply integrated calendar experience across your devices, value a free app, and are willing to overlook occasional data loss or limited customization R8R29.
you prioritize visual organization with color-coding and task management features, and are willing to pay for a subscription to unlock core functionalities like recurring events and multiple alarms .
Evidence note: Both apps have a significant number of reviews reporting data loss and syncing issues, making reliability a common pain point. Calendars (App B) has a strong free-vs-paid asymmetry, with many negative reviews stemming from features being paywalled that users expect to be free or were previously free.
Frequently asked
Does Calendar (App A) have problems with events disappearing?
Are recurring events free in Calendars (App B)?
Can I customize holidays in Calendar (App A)?
Does Calendars (App B) sync well with other calendar services?
What reviewers actually said
Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.
- [R2] Calendar Good but add specific times for events not just times that end in zeros and fives: Wonderful organization but add specific times for events not just times that end in zeros and fives and stickers and more colors that personalize it
- [R3] Calendar I’d like a refund: I like this app, I use it for everything. I would like more access to change things; example: how are Jewish and Islamic holidays considered “U.S. Holiday” ( which is not true) and I can’t remove the holiday so it’s not in my calendar reminder
- [R5] Calendar Decent but needs improvement: Widgets need more options. Specifically, you should be able to mark a reminder complete by clicking on it in the widget. You should not have to open the app to mark a reminder complete. Also, need a widget that shows events in a month/weeks long calendar view. Something other apps offer.
- [R6] Calendar Optional Holidays: Apple, please make it possible to filter different holidays. We don’t all want to see Christian, Jewish, and Islamic holidays wholesale or none at all. Please add filters!
- [R13] Calendar Confusing for me: I might just be bad at navigating, but I hate using this app. It requires some scrolling and clicking small buttons, which is not my kind of thing. I tried to add a new calendar but it didn’t even alert me and a birthday was still there.
- [R25] Calendar Timeline Unecessary: I don’t like the new format. I don’t need to see the time line all the way down. I’m sure some people it’s helpful, however, I like the simpler look. I already have times and alerts added to my events.
- [R27] Calendar Can’t remove sidebar: I used this app for years, decades, and now suddenly there’s a side bar that I can’t remove. If you’re going to add things that we didn’t need, at least make it obvious how to remove them when we don’t want them. 😑
- [R29] Calendar Calendar: I mean it’s a calendar app and gets the job done… what I got to say
- [R1] Calendar Frustrating: All my events are gone, and are no where to be found. Incredibly frustrating
- [R4] Calendar Whyyyy: Why whole calendar keeps getting deleted I feel like every other week…
- [R7] Calendar Alerts don't work: My alerts don't work like they use too!! Apple sucks!!
- [R10] Calendar Disappear: I used to like this calendar. Not anymore. I constantly lose my past schedules. It is July 2026 and June 2026 is gone. I schedule reminders for Birthday’s. They never happen.
- [R8] Calendar Almost Perfect for Any Apple User: Apple’s calendar app has one leg up over the competition, and that is the integration with its products and services. I can ask Siri for the next event on my calendar from any of my Apple devices, and I can get personalized suggestions for new events as well based on conversations in iMessages or Apple Mail. There is one problem with this app, though, and it is t
- [R12] Calendar Feedback: Yo can we get holiday explaination at least if it's national or no. Please, thanks!!!
- [R17] Calendar Great app but issue with updating Invites: Whenever I’ve updated an invite that was already sent out by editing the Repeat from weekly to an actual end date , the people who already accepted the invite initially still have the problem showing the invite repeated as weekly forever versus what I updated with the end date. Could this please be looked into? Otherwise the app has been a great use!
- [R20] Calendar Very useful in iPad: This is a great app on iPad due to being able to use it in landscape mode and the bigger screen real estate. Would really really like the ability to edit (and delete) unwanted holidays. They get in the way and it would very useful to be able to reclaim the screen space they take up.
- [R34] Calendar Lost data: Data over 6 mos old is dropped. Had many dr appts last year and needed to plan for upcoming appts. Everything lost. Apple blames another calendar app but info is visible on theirs. Apple only saves 6 mos!!!! Worthless pos.
- [R22] Calendar Where’s my stuff?: Out of nowhere every single work entry I’ve ever made just disappeared. Why?
- [R66] Calendars Don’t bother if looking for free: Can’t even have weekly events repeat without buying Pro. Thanks but no thanks.
- [R67] Calendars Not the best: I have used many calendar apps and you have to pay for repeat events like wth!! Over rated in my opinion. Use time tree!
- [R70] Calendars Free version does not allow recurring events: Looking for free basic cal but lack of ability to make events recurring makes this an incomplete calendar. Other functions seemed great.
- [R78] Calendars repeat: Its’s annoying that I have to pay for pro to repeat an event. I don’t want to have schedule work every single day when it’s the same time. Only spent like 5 minutes on the app but no point in getting it.
- [R45] Calendar Good, except…: I don’t want islamic anything on my phone, ect. How do I remove them?
- [R69] Calendars No longer worth the money: I bought this app when it was a one time fee. Then they changed it to a subscription and I paid because it’s what I’m used to. But it is consistently behind in syncing with shared calendars, and my phones calendar now offers all of the same features, further making an annual subscription a waste of money, when I’m having to go into my phone calendar regularly to see thin
- [R80] Calendars Sync: Been using this app since 2018 and still love it but it’s doesn’t seem to be syncing my changes in this app to my Google Calendar and therefore not on my watch. Maybe it’s just slow?
- [R99] Calendars Something has happened…: This, and Calendars 5 (the predecessor), have been my go to phone calendar app for years. But recently, it been consistently boning me, by not updating my calendars in the cloud, and not being updated by them. (Multiple calendars, iCloud & Google) I’d love a force sync button or something. Too many times lately, I’ve put things in, or changed them, and it the next day or t
- [R105] Calendars Phone Sync: Waaaaaaaa, Calanders worked fine, then one day poof, would not sync with my phone. Tried to reach help but got AI… I have not learned how to talk to AI, ended up with all these things to try…no luck. Try something else, I paid for the year or I would leave.
Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store