# ONLYOFFICE Projects vs Tuta Calendar

The clearest difference is rating: Tuta Calendar at 4.6 against ONLYOFFICE Projects's 4.0. Tuta Calendar also leads on update cadence (weekly vs every 5 weeks) and ratings volume (167 vs 3). ONLYOFFICE Projects's advantage is in-app purchases (none vs 4) and review sentiment (73% vs 58%). On price, ads and device support there is nothing between them.

Both are free to download. Tuta Calendar sells 4 in-app purchases, starting at $3.99 per month. ONLYOFFICE Projects asks for nothing beyond the download.

Tuta Calendar holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Tuta Calendar has 167 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 73% of ONLYOFFICE Projects's written reviews are positive against 58% of Tuta Calendar's, so the app with the better star average is not the one people write more warmly about.

ONLYOFFICE Projects ships an update every 5 weeks, Tuta Calendar weekly. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | ONLYOFFICE Projects | Tuta Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/onlyoffice-projects/id1353395928/reviews) | **[4.6 (167 ratings)](https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811/reviews)** |
| Number of ratings | 3 | **167** |
| Positive reviews | **72.7% of reviews** | 57.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 46 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ascensio System SIA](https://appshunter.io/developer/670964143) | [Tutao GmbH](https://appshunter.io/developer/922429608) |

## What reviewers say

### ONLYOFFICE Projects

[App page](https://appshunter.io/ios/app/onlyoffice-projects/id1353395928)

Manage projects, track team productivity, and access assignments on the go. Facilitates task management, team communication through discussions and comments, and document collaboration.

**Highlights:** Task, subtask, and milestone management, Assign team members, Task search with filters, Project discussions, Task comments, Access project documents

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tuta Calendar

[App page](https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811)

This app offers a secure and private way to manage your schedule with end-to-end encryption. It provides essential planning tools like recurring events and multiple calendar views, all while protecting your data from tracking and ads. Seamlessly integrates with an encrypted email service.

**Highlights:** Quantum-safe end-to-end encryption, Zero tracking and no ads, Sync across mobile, web, and desktop, Recurring and external calendar support, Multiple calendar views, Offline access, Secure event sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Revolutionary (Monthly) | $3.99 | per month |
| Legend (Monthly) | $9.99 | per month |
| Revolutionary (Yearly) | $39.99 | per year |
| Legend (Yearly) | $99.99 | per year |

**What reviewers like**

- 🔒 Privacy and security focused
- 👍 Streamlined and minimalist design
- 🔄 Calendar subscriptions work well
- ✨ Good color schemes and views
- ✅ Private alternative to big tech

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- ⚠️ Requires account/login
- 📅 Widget not working/limited
- ❌ No watch app support
- ⏳ Slow loading/reloading events

**Reported bugs**

- App crashes frequently
- Widget is not working or is blank
- Calendar events not saving or changes not saving
- App logs out automatically and shows invalid credentials
- Double reminders for appointments

**Requested features**

- App for the Watch
- Icon shows current date
- Ability to see holidays marked
- Import from Apple calendar
- Adjustable app opening view (e.g., month view)


## Frequently asked questions

### Is ONLYOFFICE Projects free?

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

### Is Tuta Calendar free?

Tuta Calendar is free to download, with in-app purchases available.

### Which has better reviews, ONLYOFFICE Projects or Tuta Calendar?

Tuta Calendar is rated higher. ONLYOFFICE Projects averages 4.0 out of 5 from 3 ratings, while Tuta Calendar averages 4.6 from 167 ratings.

### Do ONLYOFFICE Projects or Tuta Calendar have ads?

Neither ONLYOFFICE Projects nor Tuta Calendar shows ads.

### Which is updated more often, ONLYOFFICE Projects or Tuta Calendar?

ONLYOFFICE Projects ships an update every 5 weeks, and Tuta Calendar weekly. Most recently, ONLYOFFICE Projects was updated on November 2, 2026 and Tuta Calendar on November 11, 2026.

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