# GEARSTONE vs DYF COACH

The clearest difference is in-app purchases: GEARSTONE at none against DYF COACH's 2. GEARSTONE also leads on iOS requirement (12.0 vs 15.0). DYF COACH's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. DYF COACH sells 2 in-app purchases, starting at $12.90 per month. GEARSTONE asks for nothing beyond the download.

GEARSTONE ships an update every 3 weeks, DYF COACH weekly. The most recent releases landed on June 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | GEARSTONE | DYF COACH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/gearstone/id1663164455/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 22 MB | 128 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen cloud access information Technical service Co.,Ltd](https://appshunter.io/developer/1239646125) | [DYF CORPORATION SA](https://appshunter.io/developer/1835911646) |

## What reviewers say

### GEARSTONE

[App page](https://appshunter.io/ios/app/gearstone/id1663164455)

Control your smart treadmill remotely via Bluetooth. Track your runs, analyze your data, and build healthy exercise habits with this app.

**Highlights:** Bluetooth treadmill connection, Remote speed and incline control, Start/stop treadmill functions, Exercise data collection, Statistical analysis of runs, Promotes healthy habits

**Features:** macOS Compatibility

**In-app purchases:** none


### DYF COACH

[App page](https://appshunter.io/ios/app/dyf-coach/id6757149629)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Coach Mensuel | $12.90 | per month |
| Pro Coach Annuel | $149.99 | per year |


## Frequently asked questions

### Is GEARSTONE free?

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

### Is DYF COACH free?

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

### Do GEARSTONE or DYF COACH have ads?

Neither GEARSTONE nor DYF COACH shows ads.

### Which is updated more often, GEARSTONE or DYF COACH?

GEARSTONE ships an update every 3 weeks, and DYF COACH weekly. Most recently, GEARSTONE was updated on June 1, 2026 and DYF COACH on September 10, 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.*