# Project Time Tracker vs marble work

The clearest difference is in-app purchases: marble work at none against Project Time Tracker's 2. marble work also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Project Time Tracker sells 2 in-app purchases, starting at $2.00 per month. marble work asks for nothing beyond the download.

Project Time Tracker ships an update every 2 weeks, marble work every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Project Time Tracker | marble work |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/project-time-tracker-hours/id6497061363/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 74 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [Lukas Hummel](https://appshunter.io/developer/1674424117) | [Ricardo Koehne](https://appshunter.io/developer/1445351056) |

## What reviewers say

### 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 | $2.00 | per month |
| Yearly Subscription | $15.00 | per year |


### marble work

[App page](https://appshunter.io/ios/app/marble-work/id6777810641)

**In-app purchases:** none


## Frequently asked questions

### Is Project Time Tracker free?

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

### Is marble work free?

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

### Do Project Time Tracker or marble work have ads?

Neither Project Time Tracker nor marble work shows ads.

### Which is updated more often, Project Time Tracker or marble work?

Project Time Tracker ships an update every 2 weeks, and marble work every 3 days. Most recently, Project Time Tracker was updated on October 24, 2026 and marble work on October 25, 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.*