# FeatherStep vs Interval Run

The clearest difference is in-app purchases: Interval Run at none against FeatherStep's 1. Interval Run also leads on ads (none vs shown). FeatherStep's advantage is update cadence (weekly vs every 6 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. FeatherStep sells 1 in-app purchase, starting at $3.99 per month. Interval Run asks for nothing beyond the download.

FeatherStep ships an update weekly, Interval Run every 6 months. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | FeatherStep | Interval Run |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 6 months |
| Size | 113 MB | 1 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 9+ |
| Developer | [Longhong Chiang](https://appshunter.io/developer/1698889494) | [ataraxia chen](https://appshunter.io/developer/1559422010) |

## What reviewers say

### FeatherStep

[App page](https://appshunter.io/ios/app/featherstep/id6452396712)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Ad-Free | $3.99 | per month |


### Interval Run

[App page](https://appshunter.io/ios/app/interval-run/id6664059300)

**In-app purchases:** none


## Frequently asked questions

### Is FeatherStep free?

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

### Is Interval Run free?

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

### Do FeatherStep or Interval Run have ads?

FeatherStep shows ads; Interval Run does not.

### Which is updated more often, FeatherStep or Interval Run?

FeatherStep ships an update weekly, and Interval Run every 6 months. Most recently, FeatherStep was updated on September 15, 2026 and Interval Run on September 9, 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.*