# Time Tracker for Open Project vs Nextcloud Calendar

The clearest difference is update cadence: Nextcloud Calendar at every 2 weeks against Time Tracker for Open Project's every 2 months. Time Tracker for Open Project's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

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

Time Tracker for Open Project ships an update every 2 months, Nextcloud Calendar every 2 weeks. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Time Tracker for Open Project | Nextcloud Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/nextcloud-calendar/id6766678698/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 26 MB | 52 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Von Rehberg Consulting GmbH](https://appshunter.io/developer/1643860144) | [Soluce Technologies](https://appshunter.io/developer/1626802271) |

## What reviewers say

### Time Tracker for Open Project

[App page](https://appshunter.io/ios/app/time-tracker-for-open-project/id1669753978)

**Features:** Vision Pro support

**In-app purchases:** none


### Nextcloud Calendar

[App page](https://appshunter.io/ios/app/nextcloud-calendar/id6766678698)

Manage your Nextcloud calendars with a simple mobile app. View, create, and organize events with real-time synchronization across multiple instances. Supports creating meetings with video conference links.

**Highlights:** Automatic calendar detection, View, create, and manage events, Real-time synchronization, Multi-account support, Create meetings with video conference links, Switch between multiple Nextcloud instances

**In-app purchases:** none


## Frequently asked questions

### Is Time Tracker for Open Project free?

Time Tracker for Open Project is free to download, with no in-app purchases.

### Is Nextcloud Calendar free?

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

### Do Time Tracker for Open Project or Nextcloud Calendar have ads?

Neither Time Tracker for Open Project nor Nextcloud Calendar shows ads.

### Which is updated more often, Time Tracker for Open Project or Nextcloud Calendar?

Time Tracker for Open Project ships an update every 2 months, and Nextcloud Calendar every 2 weeks. Most recently, Time Tracker for Open Project was updated on September 10, 2026 and Nextcloud Calendar on September 21, 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.*