Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Zoho Mail vs Calendar

Zoho Mail 4.6★ · Free + IAP 75
Winner Zoho Mail
Calendar 4.9★ · Free to download 60

Zoho Mail is better for business users needing an integrated email and calendar solution with strong features, while Calendar is a basic, integrated option for Apple users, despite its data loss and syncing issues.

Full reviews: Zoho Mail · Calendar

Zoho Mail offers a robust, feature-rich email and calendar experience, particularly for business users, despite some UI and support complaints. Calendar, while deeply integrated into the Apple ecosystem, suffers from frequent data loss, syncing problems, and limited customization.

Head to head

Features and Functionality edge: Zoho MailR14R41R53R45
Zoho Mail Zoho Mail is praised for its extensive features, including an integrated calendar, contacts, and notes, making it a powerful tool for business and personal use R14R41R53. Users appreciate its organization capabilities and the ability to sort spam R45. However, some users find the app basic and missing fundamental features like blocking emails or creating white/black lists directly in the app . Recent updates have also removed features like pinch-to-zoom .
Calendar Calendar is valued for its deep integration with Apple products and services, allowing Siri interaction and personalized event suggestions . Users appreciate its basic functionality for scheduling and reminders . However, many users desire more customization options, such as specific event times, stickers, more colors, and better widget options R62R65R84R108. Users also report issues with holiday filtering and the inability to remove unwanted holidays .
Reliability and Performance tieR5R26R3R4
Zoho Mail Zoho Mail is generally seen as a reliable source for staying connected R5 and functioning well R26. However, users frequently report issues such as the app interface blinking R3, emails not loading or disappearing R4, and the app crashing, especially after updates . Some users experienced sign-in loops and connectivity errors .
Calendar Calendar users frequently report critical reliability issues, including events disappearing or being deleted R61R64R70R82, and data loss, sometimes after updates . Syncing issues with other devices are common . The app also experiences crashes and alerts not working properly .
Ease of Use and User Interface tieR11R47R13R49
Zoho Mail Zoho Mail is described as having an easy setup R11 and a clean, simple interface R47. However, many users find the UX horrible and complicated R13R49. Complaints include difficulty navigating, a lack of user-friendliness in recent updates , and issues with font size and readability . The iPad app is particularly criticized for being unusable and confusing .
Calendar Calendar is generally considered simple to use R108, but many users find it confusing to navigate and complain about UI issues like an unremovable sidebar and an unnecessary timeline view . Users desire more control over display, such as font scaling for a true 'month at a glance' and better organization of reminders .
Spam and Security edge: CalendarR1R30R40R100
Zoho Mail Zoho Mail receives significant criticism regarding spam filtering. Many users report an overwhelming amount of spam, with filters not working effectively R1R30R40. Some even claim their paid accounts are covered in spam and that Zoho sells user info R1.
Calendar Calendar users report issues with unwanted and spam calendar entries appearing from junk mail, including sexual meeting invites, which they cannot easily remove R100.
Customer Support tieR6R22R55R10
Zoho Mail Zoho Mail's customer support is a major pain point for users. Many describe it as atrocious, unhelpful, and difficult to reach, often requiring email communication for issues that are hard to explain R6R22R55. There are reports of accounts becoming inactive without support or acknowledgment R10. However, some users have had positive experiences, noting responsive support that helped resolve issues .
Calendar Reviews for Calendar do not frequently mention direct customer support interactions, as it is a native Apple app. Issues are typically reported as bugs or feature requests within the app store reviews, implying a less direct support channel for individual user problems.
Pick Zoho Mail if

you need a powerful, integrated email and calendar solution for business or extensive personal use, and are willing to navigate a potentially complex UI and occasional support challenges R14R41R53.

Pick Calendar if

you are an Apple user who prioritizes deep integration with the Apple ecosystem and Siri, and only need basic calendar functionality, despite the risk of data loss and limited customization .

Evidence note: The evidence for Calendar's customer support is thin, as users typically report issues as app bugs rather than direct support interactions, which is common for native OS apps. Zoho Mail's free tier likely contributes to some negative reviews regarding account access and support, as free users often have different expectations and support experiences compared to paid users R10.

Frequently asked

Does Zoho Mail have good spam filtering?
No, many Zoho Mail users report significant issues with spam filtering, stating that their accounts are overrun with spam and that the filters are ineffective, even for paid accounts R1R30R40.
Can I customize the Apple Calendar app?
The Apple Calendar app offers limited customization, with users frequently requesting more options for specific event times, stickers, additional colors, and better widget functionality R62R65R84R108.
Do events disappear in Apple Calendar?
Yes, many users report that events, appointments, and reminders frequently disappear or are deleted from the Apple Calendar app, sometimes without explanation or after updates R61R64R70R82.

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.

  1. [R14] Zoho Mail 5/5 · US Amazing features in the app: Zoho mail is an amazing app, help me with my business a lot. I really recommend it for everyone. Has a calendar and a lot of other features that help your business
  2. [R41] Zoho Mail 5/5 · US Professional Email and Beyond: The Zoho Mail app is a perfect tool for managing both personal and business emails. I love that it includes a calendar, contacts, and notes all in one place which helps me stay productive on the go. The interface is very clean and the swipe actions make it easy to organize my inbox quickly. It is a reliable and secure app that works smoothly across all my devices wit
  3. [R53] Zoho Mail 5/5 · US Powerful: If you need full power email and not a toy, consider this one. For a business this is a solid choice. And for personal use it is great. As a longtime outlook user I have been very impressed.
  4. [R45] Zoho Mail 3/5 · US Zoho mail and it's traits: Hello, I've been using Zoho mail for 6+ years now. There is a lot of good things that it gives like Organization, built in Calinder, all the needed folders, ability to sort out span mail too. I am fine with that but the only few down side of it is you have to renew your password and log in info every 4-5 months and log in every time to enter the app. It is repetitive and
  5. [R5] Zoho Mail 5/5 · US Reliable Source: Grateful for this app Zoho mail is helping me stay connected without any hassles
  6. [R26] Zoho Mail 5/5 · US Functions well: Great app
  7. [R3] Zoho Mail 3/5 · US App interface keeps blinking: The UI when opened has been flashing lately. I have to close it entirely and open again before it gets stable. It happens quite often which I think is a bug. I have video of it if you want it to investigate and fix the issue.
  8. [R4] Zoho Mail 1/5 · US Stopped: I’ve stopped getting my emails after running my entire business, and personal emails through this site!!!! I’ve missed incredibly important information costing me thousands of dollars!!!
  9. [R11] Zoho Mail 5/5 · US Easy set up: Efficient and easy setup
  10. [R47] Zoho Mail 5/5 · US Love the service, love the app: Great everything. Clean and simple. Thank you to the company.
  11. [R13] Zoho Mail 1/5 · US Great service with Horrible UX: Zoho is a good mail service, but the app UX is just horrible, like a software engineer also designed the app. You have to press back to see the Dashboard Menu! Then Inbox isn’t your Inbox! It’s View -> Undread
  12. [R49] Zoho Mail 1/5 · US No use: Complicated
  13. [R1] Zoho Mail 1/5 · US To much spam.: Entirely too much spam. They sell your info and your paid mail account is covered in spam. To boot there spam filters don’t work either.
  14. [R30] Zoho Mail 3/5 · US Spam increase: There has been an increase in spam getting through. I am marking as spam to help. Not sure what’s happened to change
  15. [R40] Zoho Mail 1/5 · US Garbage: Used to have excellent spam filtering. Now it doesn't filter anything. Totally overrun with spam, 100s per day, and all the spam features have been defeated by "someone". False advertising to claim it filters spam.
  16. [R100] Calendar 1/5 · US Sexual Calendar Entries Allowed: Allows uninvited calendar entries to show up on the calendar from junk mail. I have a whole bunch of junk email every day with people sending nasty calendar invites that I have never accepted showing up with sexual meeting invites that I cannot make go away they just keep showing up on the calendar, making it useless to use without seeing these things. The whole
  17. [R6] Zoho Mail 3/5 · US Its pretty good: It functions pretty well but has some issues that are hard to resolve due to the company being in India. The only contact to resolve issues is email and that makes it very difficult to explain things. They ask for a "screen recording" of the issue that should have been easy to resolve via email.
  18. [R22] Zoho Mail 1/5 · US Worst customer service: Their customer service is atrocious. They are extremely unhelpful. I eventually gave up and used a different service.
  19. [R55] Zoho Mail 1/5 · US Garbage: You can’t get anyone to fix anything. Any issues have to be resolved through email, only to get no solution
  20. [R10] Zoho Mail 1/5 · US Account not accessible…inactive after just 10 days: They my account inactive after I recently opened it. No support. No acknowledgment. No ticket for support. I keep contacting them. They detached my cell number from the account too. I’m testing out the free Zoho email before purchasing an upgrade but this is a nightmare. They need to acknowledge me and fix things fast. I need to trust them.
  21. [R62] Calendar 4/5 · US 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
  22. [R65] Calendar 4/5 · US 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.
  23. [R84] Calendar 3/5 · US Add Color Coding: Overall well functioning, but I'd love to have color options to organize different types of events and keep track of them easier
  24. [R108] Calendar 3/5 · US More customization: very simple app to use but I really wish they allowed you to customize your calendar more possible like maybe a few different fonts and different color options to choose from!
  25. [R61] Calendar 1/5 · US Frustrating: All my events are gone, and are no where to be found. Incredibly frustrating
  26. [R64] Calendar 2/5 · US Whyyyy: Why whole calendar keeps getting deleted I feel like every other week…
  27. [R70] Calendar 1/5 · US 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.
  28. [R82] Calendar 1/5 · US Where’s my stuff?: Out of nowhere every single work entry I’ve ever made just disappeared. Why?

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store