# STIMULUS vs GYM HAYES

STIMULUS and GYM HAYES are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

STIMULUS ships an update every 2 months, GYM HAYES every 3 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | STIMULUS | GYM HAYES |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 59 MB | 68 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TeamUp Sports](https://appshunter.io/developer/1449504626) | [Ashbourne](https://appshunter.io/developer/1130933933) |

## What reviewers say

### STIMULUS

[App page](https://appshunter.io/ios/app/stimulus/id6501978471)

**Features:** macOS Compatibility

**In-app purchases:** none


### GYM HAYES

[App page](https://appshunter.io/ios/app/gym-hayes/id6744819215)

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

**In-app purchases:** none


## Frequently asked questions

### Is STIMULUS free?

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

### Is GYM HAYES free?

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

### Do STIMULUS or GYM HAYES have ads?

Neither STIMULUS nor GYM HAYES shows ads.

### Which is updated more often, STIMULUS or GYM HAYES?

STIMULUS ships an update every 2 months, and GYM HAYES every 3 months. Most recently, STIMULUS was updated on October 6, 2026 and GYM HAYES on October 6, 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.*