# MATS vs GradeDays

The clearest difference is in-app purchases: GradeDays at none against MATS's 13. MATS's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. MATS sells 13 in-app purchases, starting at $17.00 per month. GradeDays asks for nothing beyond the download.

MATS ships an update every 9 days, GradeDays every 2 weeks. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | MATS | GradeDays |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 106 MB | 3 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MATS GmbH](https://appshunter.io/developer/1648085981) | [Niklas Bretschneider](https://appshunter.io/developer/6792128926) |

## What reviewers say

### MATS

[App page](https://appshunter.io/ios/app/mats-training-platform/id6443653002)

This app simplifies training management for athletes by combining planning, analysis, and communication tools. It offers evidence-based diagnostics, personalized training plans, and a knowledge hub to enhance performance. Designed for ease of use, it integrates multiple functions into one platform.

**Highlights:** Integrated training calendar, Scientific performance analysis, Strength & Core workout library, Remote diagnostic tools, Professional training plans, Athlete-coach chat, Knowledge Hub for sports science

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $17.00 | per month |
| AI Coach - Seipp (Month) | $39.00 | per month |
| AI Coach - Tilbury-Davis (Month) | $39.00 | per month |
| AI Coach - Roesler (Month) | $39.00 | per month |
| AI Coach - Schoemburg-Heuck (Month) | $39.00 | per month |
| Basic yearly subscription | $99.99 | per year |
| Premium yearly subscription | $129.99 | per year |
| AI Coach - Eriksson (Year) | $350.00 | per year |
| AI Coach - Seipp (Year) | $350.00 | per year |
| AI Coach - Tilbury-Davis (Year) | $350.00 | per year |
| AI Coach - Roesler (Year) | $350.00 | per year |
| AI Coach - Schoemburg-Heuck (Year) | $350.00 | per year |
| Diagnostic | $79.00 | one-time |


### GradeDays

[App page](https://appshunter.io/ios/app/gradedays/id6792128446)

**In-app purchases:** none


## Frequently asked questions

### Is MATS free?

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

### Is GradeDays free?

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

### Do MATS or GradeDays have ads?

Neither MATS nor GradeDays shows ads.

### Which is updated more often, MATS or GradeDays?

MATS ships an update every 9 days, and GradeDays every 2 weeks. Most recently, MATS was updated on October 17, 2026 and GradeDays on October 4, 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.*