# By OBS vs My Marathon

The clearest difference is update cadence: By OBS at fortnightly against My Marathon's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

By OBS ships an update fortnightly, My Marathon every 2 months. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | By OBS | My Marathon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 29 MB | 40 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MY OBS](https://appshunter.io/developer/1610071428) | [Marathon FurtureX](https://appshunter.io/developer/1524913793) |

## What reviewers say

### By OBS

[App page](https://appshunter.io/ios/app/by-obs/id1610071426)

**Features:** macOS Compatibility

**In-app purchases:** none


### My Marathon

[App page](https://appshunter.io/ios/app/my-marathon/id6502095972)

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

**In-app purchases:** none


## Frequently asked questions

### Is By OBS free?

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

### Is My Marathon free?

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

### Do By OBS or My Marathon have ads?

Neither By OBS nor My Marathon shows ads.

### Which is updated more often, By OBS or My Marathon?

By OBS ships an update fortnightly, and My Marathon every 2 months. Most recently, By OBS was updated on September 7, 2026 and My Marathon on September 20, 2026.

---

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