# Interval Run vs SumCha

The clearest difference is iOS requirement: Interval Run at 15.0 against SumCha's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Interval Run sells 1 one-off in-app purchase and SumCha sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Interval Run | SumCha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Size | 55 MB | 10 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Yoo jaesung](https://appshunter.io/developer/1550716656) | [Iksang Hwang](https://appshunter.io/developer/1712487986) |

## What reviewers say

### Interval Run

[App page](https://appshunter.io/ios/app/interval-run-treadmill-coach/id6812627914)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.00 | one-time |


### SumCha

[App page](https://appshunter.io/ios/app/sumcha-interval-running/id6819497314)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| SumCha Pro | $3.99 | one-time |
| SumCha Pro | $5.99 | one-time |


## Frequently asked questions

### Is Interval Run free?

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

### Is SumCha free?

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

### Do Interval Run or SumCha have ads?

Both Interval Run and SumCha show ads.

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

Interval Run ships an update weekly, and SumCha weekly. Most recently, Interval Run was updated on October 31, 2026 and SumCha on November 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.*