# SlipBox vs GMTU

The clearest difference is price: GMTU at Free against SlipBox's $0.99. GMTU also leads on rating (5.0 vs 3.3). SlipBox's advantage is ratings volume (3 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

GMTU is free to download; SlipBox costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GMTU holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | SlipBox | GMTU |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/slipbox-zettelkasten-notes/id6743237863/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gmtu/id6745209414/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Paid | **Free** |
| Size | 8 MB | 2 MB |
| Requires iOS | **18.2** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ozlem AKBUDAK](https://appshunter.io/developer/1736380201) | [Xuan Tang](https://appshunter.io/developer/1707235915) |

## What reviewers say

### SlipBox

[App page](https://appshunter.io/ios/app/slipbox-zettelkasten-notes/id6743237863)

This app helps you build a structured web of knowledge using the Zettelkasten method. Its minimalist design and continuous scrolling interface encourage active recall and pattern recognition for deep cognitive work. Your notes are stored locally for privacy.

**Highlights:** Continuous scroll interface, Zettelkasten method implementation, Intentional tagging system, Minimalist design, Privacy-first, local storage

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

**In-app purchases:** none


### GMTU

[App page](https://appshunter.io/ios/app/gmtu/id6745209414)

This application allows users to receive real-time code progress updates directly on their phones. It integrates with a Python package to send notifications, useful for monitoring loops or single execution events.

**Highlights:** Real-time code progress updates, Integration with gmtu Python package, Send updates from for loops, One-time update notifications, Mobile monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SlipBox free?

SlipBox costs $0.99, with no in-app purchases.

### Is GMTU free?

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

### Which has better reviews, SlipBox or GMTU?

GMTU is rated higher. SlipBox averages 3.3 out of 5 from 3 ratings, while GMTU averages 5.0 from 1 ratings.

### Do SlipBox or GMTU have ads?

Neither SlipBox nor GMTU shows ads.

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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.*