# OnTrack Interval Timer vs SumCha

The clearest difference is ads: OnTrack Interval Timer at none against SumCha's shown. OnTrack Interval Timer also leads on iOS requirement (16.2 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | OnTrack Interval Timer | SumCha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Size | 2 MB | 7 MB |
| Requires iOS | **16.2** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jekal Ik](https://appshunter.io/developer/1860824839) | [Iksang Hwang](https://appshunter.io/developer/1712487986) |

## What reviewers say

### OnTrack Interval Timer

[App page](https://appshunter.io/ios/app/ontrack-interval-timer/id6757700812)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Background Mode | $2.99 | one-time |


### SumCha

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

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is OnTrack Interval Timer free?

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

### Is SumCha free?

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

### Do OnTrack Interval Timer or SumCha have ads?

SumCha shows ads; OnTrack Interval Timer does not.

---

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