# Neurokeys vs Multiple Sclerosis Tracker

The clearest difference is in-app purchases: Neurokeys at none against Multiple Sclerosis Tracker's 17. Neurokeys also leads on update cadence (every 3 weeks vs every 8 months). Multiple Sclerosis Tracker's advantage is device support (4 vs 1) and iOS requirement (15.5 vs 18.2). On price and ads there is nothing between them.

Both are free to download. Multiple Sclerosis Tracker sells 17 in-app purchases, starting at $4.95 per month. Neurokeys asks for nothing beyond the download.

Neurokeys ships an update every 3 weeks, Multiple Sclerosis Tracker every 8 months. The most recent releases landed on October 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Neurokeys | Multiple Sclerosis Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/multiple-sclerosis-tracker/id6743040815/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | — | Free with in-app purchases |
| Size | 184 MB | 201 MB |
| Requires iOS | 18.2 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Neurocast BV](https://appshunter.io/developer/1252625745) | [Digital Therapeutics](https://appshunter.io/developer/1721663167) |

## What reviewers say

### Neurokeys

[App page](https://appshunter.io/ios/app/neurokeys/id1436297061)

**In-app purchases:** none


### Multiple Sclerosis Tracker

[App page](https://appshunter.io/ios/app/multiple-sclerosis-tracker/id6743040815)

This app helps individuals manage their Multiple Sclerosis by tracking symptoms, medication, and potential triggers. It generates reports for healthcare providers and offers educational resources. Designed for both newly diagnosed and long-term patients, it prioritizes user privacy with bank-level encryption.

**Highlights:** Personalized symptom monitoring, Symptom pattern analysis, Medication effectiveness tracking, Report generation for doctors, Medication reminders, MS-specific educational resources, Secure data encryption

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite Monthly | $4.95 | per month |
| easy pass | $5.99 | per 7 days |
| weather max | $9.99 | per 3 months |
| flex pass | $9.99 | per month |
| carey ai max | $19.99 | per month |
| Lite Yearly | $19.99 | per year |
| smart pass | $24.99 | per year |
| carey ai ultra | $29.99 | per month |
| plus | $29.99 | per year |
| Premium Yearly | $29.99 | per year |
| limited discount | $34.99 | per year |
| yearly access | $39.99 | per year |
| Extended Trial | $39.99 | per year |
| 7-Day Trial | $49.99 | per year |
| store credit | $1.99 | one-time |
| carey ai credits | $8.99 | one-time |
| lifetime upgrade | $99.00 | one-time |


## Frequently asked questions

### Is Neurokeys free?

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

### Is Multiple Sclerosis Tracker free?

Multiple Sclerosis Tracker is free to download, with in-app purchases available.

### Do Neurokeys or Multiple Sclerosis Tracker have ads?

Neither Neurokeys nor Multiple Sclerosis Tracker shows ads.

### Which is updated more often, Neurokeys or Multiple Sclerosis Tracker?

Neurokeys ships an update every 3 weeks, and Multiple Sclerosis Tracker every 8 months. Most recently, Neurokeys was updated on October 14, 2026 and Multiple Sclerosis Tracker on September 20, 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.*