# Diary Calendar vs Project Time Tracker

The clearest difference is review sentiment: Project Time Tracker at 100% against Diary Calendar's 33%. Project Time Tracker also leads on price (Free vs $2.99) and update cadence (every 2 weeks vs every 3 months). Diary Calendar's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.0). On ads and device support there is nothing between them.

Project Time Tracker is free to download; Diary Calendar costs $2.99 up front. Project Time Tracker sells 2 in-app purchases, starting at $1.00 per month. Diary Calendar asks for nothing beyond the download.

Diary Calendar ships an update every 3 months, Project Time Tracker every 2 weeks. The most recent releases landed on September 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Diary Calendar | Project Time Tracker |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/project-time-tracker-hours/id6497061363/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 4 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hans Joachim Gerhardt](https://appshunter.io/developer/320239954) | [Lukas Hummel](https://appshunter.io/developer/1674424117) |

## What reviewers say

### Diary Calendar

[App page](https://appshunter.io/ios/app/diary-calendar/id397426336)

This calendar app supports the ICS standard for seamless integration with PC calendar software like Outlook and Lightning. It offers detailed date and monthly overviews, allows for time zone-specific appointments, and enables the creation of both one-off and recurring events.

**Highlights:** ICS standard compatibility, Date and monthly overviews, Time zone management, Recurring event creation, Searchable appointment list, External data storage

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

**In-app purchases:** none


### Project Time Tracker

[App page](https://appshunter.io/ios/app/project-time-tracker-hours/id6497061363)

This app helps freelancers and professionals meticulously track their work hours across various projects. It offers clear insights into where time is spent and includes features to prevent overworking. Data is stored locally and accessible offline.

**Highlights:** Project-based time tracking, Clear statistics and work hour insights, Offline functionality, Time Guard to prevent overworking, One-tap CSV export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.00 | per month |
| Yearly Subscription | $9.00 | per year |


## Frequently asked questions

### Is Diary Calendar free?

Diary Calendar costs $2.99, with no in-app purchases.

### Is Project Time Tracker free?

Project Time Tracker is free to download, with in-app purchases available.

### Do Diary Calendar or Project Time Tracker have ads?

Neither Diary Calendar nor Project Time Tracker shows ads.

### Which is updated more often, Diary Calendar or Project Time Tracker?

Diary Calendar ships an update every 3 months, and Project Time Tracker every 2 weeks. Most recently, Diary Calendar was updated on September 10, 2026 and Project Time Tracker on September 30, 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.*