# Odoo vs Zoho Calendar

The clearest difference is rating: Zoho Calendar at 3.5 against Odoo's 2.6. Zoho Calendar also leads on monetization model (free vs freemium) and review sentiment (36% vs 19%). Odoo's advantage is ratings volume (148 vs 6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zoho Calendar holds the better App Store score, 3.5 against 2.6. That said, the two scores are not equally well evidenced: Odoo has 148 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 19% of Odoo's written reviews are positive against 36% of Zoho Calendar's.

Odoo ships an update monthly, Zoho Calendar every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Odoo | Zoho Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (148 ratings)](https://appshunter.io/ios/app/odoo/id1272543640/reviews) | **[3.5 (6 ratings)](https://appshunter.io/ios/app/zoho-calendar/id1536155579/reviews)** |
| Number of ratings | **148** | 6 |
| Positive reviews | 19.0% of reviews | **36.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 2 MB | 184 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Odoo S.A.](https://appshunter.io/developer/1078657548) | [Zoho Corporation](https://appshunter.io/developer/388384807) |

## What reviewers say

### Odoo

[App page](https://appshunter.io/ios/app/odoo/id1272543640)

Access all your Odoo business applications from a single native mobile app. Manage records, reports, sales, and more on the go with push notifications and adaptive content delivery. Stay productive and connected to your business from any iOS device.

**Highlights:** Access all Odoo applications, Manage records and reports, Real-time push notifications, Adaptive content delivery, On-the-go business management, Seamless user experience

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Functional for viewing reports
- 🚀 Great app overall

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Login issues
- 🐛 Incompatible with Odoo 12 and 13
- 🐛 Buggy app
- 🐛 Unreliable, often needs to be reinstalled

**Reported bugs**

- Login issues
- Crashes on iOS 13 and newer
- Incompatible with Odoo 12 and 13
- Barcode scanner not working on iPhone
- Unable to access certain features like editing sales orders

**Requested features**

- Add 'Forgot Password' option
- Support for 2FA
- Ability to scan UPC-E barcodes
- Option to choose camera lens
- Bring back timer functionality


### Zoho Calendar

[App page](https://appshunter.io/ios/app/zoho-calendar/id1536155579)

This app is a collaborative online calendar designed for organizing personal and professional schedules. It allows users to create events, invite others, set reminders, and manage meeting rooms. Multiple views and widgets offer customizable organization, while offline access ensures availability without an internet connection.

**Highlights:** Multiple calendar views (day, week, month), Group calendar collaboration, Event invitations and participant management, Home screen widgets for event overview, Integrations with Zapier, Zoom, Google Calendar, Outlook, Offline access, Room booking and management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Odoo free?

Odoo is free to download, with no in-app purchases.

### Is Zoho Calendar free?

Zoho Calendar is free to download, with no in-app purchases.

### Which has better reviews, Odoo or Zoho Calendar?

Zoho Calendar is rated higher. Odoo averages 2.6 out of 5 from 148 ratings, while Zoho Calendar averages 3.5 from 6 ratings.

### Do Odoo or Zoho Calendar have ads?

Neither Odoo nor Zoho Calendar shows ads.

### Which is updated more often, Odoo or Zoho Calendar?

Odoo ships an update monthly, and Zoho Calendar every 3 weeks. Most recently, Odoo was updated on November 3, 2026 and Zoho Calendar on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*