# MARCHON Gyms vs SENSOL FLEX

The clearest difference is ads: SENSOL FLEX at none against MARCHON Gyms's shown. SENSOL FLEX also leads on update cadence (daily vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

MARCHON Gyms ships an update every 3 weeks, SENSOL FLEX daily. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MARCHON Gyms | SENSOL FLEX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 92 MB | 35 MB |
| Requires iOS | 15 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MARCHON Stratford Ltd](https://appshunter.io/developer/1791537283) | [Sensol Co., Ltd](https://appshunter.io/developer/1706469518) |

## What reviewers say

### MARCHON Gyms

[App page](https://appshunter.io/ios/app/marchon-gyms/id6740540832)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### SENSOL FLEX

[App page](https://appshunter.io/ios/app/sensol-flex/id6784491021)

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

**In-app purchases:** none


## Frequently asked questions

### Is MARCHON Gyms free?

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

### Is SENSOL FLEX free?

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

### Do MARCHON Gyms or SENSOL FLEX have ads?

MARCHON Gyms shows ads; SENSOL FLEX does not.

### Which is updated more often, MARCHON Gyms or SENSOL FLEX?

MARCHON Gyms ships an update every 3 weeks, and SENSOL FLEX daily. Most recently, MARCHON Gyms was updated on October 25, 2026 and SENSOL FLEX on October 7, 2026.

---

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