# A k vs Messly

The clearest difference is price: Messly at Free against A k's $11.99. Messly also leads on iOS requirement (12.0 vs 15.0). A k's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (4 vs 1). On rating, ads, in-app purchases and device support there is nothing between them.

Messly is free to download; A k costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for A k against 5.0 for Messly. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

A k ships an update every 3 weeks, Messly every 2 months. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | A k | Messly |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/a-k-space-odyssey/id1180053143/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/messly/id1337787871/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 30 MB | 37 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Eltjo Haselhoff](https://appshunter.io/developer/1126280156) | [Berdroot Developments Limited](https://appshunter.io/developer/1337787870) |

## What reviewers say

### A k

[App page](https://appshunter.io/ios/app/a-k-space-odyssey/id1180053143)

Explore the principles of Magnetic Resonance Imaging (MRI) by interactively manipulating scan parameters and observing their real-time effects on acquired images. This tool is designed for educators and students to gain an intuitive understanding of k-space and advanced imaging techniques.

**Highlights:** Interactive k-space parameter manipulation, Real-time image acquisition simulation, Advanced imaging technique exploration, Image import for parameter testing, Interactive user manual

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

**In-app purchases:** none


### Messly

[App page](https://appshunter.io/ios/app/messly/id1337787871)

This app connects locum doctors with agencies for job opportunities. Create an anonymous profile to receive relevant job pitches from vetted agencies. Manage your job search efficiently with tools designed to save time.

**Highlights:** Anonymous profile creation, Receive relevant job pitches, Vetted locum agencies, View jobs before sharing details, Mobile job management, Time-saving tools

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

**In-app purchases:** none


## Frequently asked questions

### Is A k free?

A k costs $11.99, with no in-app purchases.

### Is Messly free?

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

### Which has better reviews, A k or Messly?

A k and Messly are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do A k or Messly have ads?

Neither A k nor Messly shows ads.

### Which is updated more often, A k or Messly?

A k ships an update every 3 weeks, and Messly every 2 months. Most recently, A k was updated on November 5, 2026 and Messly on November 2, 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.*