# MIETHKE vs Spine

The clearest difference is in-app purchases: MIETHKE at none against Spine's 1. MIETHKE also leads on review sentiment (100% vs 75%) and update cadence (every 5 months vs every 26 months). Spine's advantage is ratings volume (59 vs 1). On price, rating and ads there is nothing between them.

Both are free to download. Spine sells 1 in-app purchase, starting at $1.99 per year. MIETHKE asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for MIETHKE against 4.9 for Spine. That said, the two scores are not equally well evidenced: Spine has 59 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 100% of MIETHKE's written reviews are positive against 75% of Spine's.

MIETHKE ships an update every 5 months, Spine every 26 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | MIETHKE | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/miethke/id450290015/reviews)** | [4.9 (59 ratings)](https://appshunter.io/ios/app/spine-whats-the-data/id934859379/reviews) |
| Number of ratings | 1 | **59** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 26 months |
| Monetization | **Free** | Subscription |
| Size | 154 MB | 20 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Miethke GmbH & Co. KG](https://appshunter.io/developer/450290018) | [Limbix LLC](https://appshunter.io/developer/490505327) |

## What reviewers say

### MIETHKE

[App page](https://appshunter.io/ios/app/miethke/id450290015)

This application visually demonstrates how gravitational valves, used to treat hydrocephalus, function. It explains how body position affects valve opening pressure and includes an X-ray recognition tool for valve setting control. Various specific valve models are illustrated.

**Highlights:** Illustrates gravitational valve functionality, Explains body position impact on valve pressure, Includes X-ray recognition tool, Demonstrates multiple valve models, Visualizes hydrocephalus treatment principles

**Features:** macOS Compatibility

**In-app purchases:** none


### Spine

[App page](https://appshunter.io/ios/app/spine-whats-the-data/id934859379)

Access essential medical literature and randomized trials in an easy-to-read format. This subscription-based service provides immediate access to updated content, helping medical professionals and students quickly review key studies and enhance their knowledge.

**Highlights:** Review seminal studies quickly, Server-based platform for immediate updates, Annual subscription service, Covers surgical and non-surgical management, Citation information for further study, Updated every 1-3 months

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $1.99 | per year |


## Frequently asked questions

### Is MIETHKE free?

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

### Is Spine free?

Spine is free to download, with in-app purchases available.

### Which has better reviews, MIETHKE or Spine?

MIETHKE is rated higher. MIETHKE averages 5.0 out of 5 from 1 ratings, while Spine averages 4.9 from 59 ratings.

### Do MIETHKE or Spine have ads?

Neither MIETHKE nor Spine shows ads.

### Which is updated more often, MIETHKE or Spine?

MIETHKE ships an update every 5 months, and Spine every 26 months. Most recently, MIETHKE was updated on November 1, 2026 and Spine on November 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*