# Interval Timer vs 100 Mile Challenge

The clearest difference is in-app purchases: 100 Mile Challenge at none against Interval Timer's 1. 100 Mile Challenge also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Interval Timer sells 1 in-app purchase, starting at $5.99 per month. 100 Mile Challenge asks for nothing beyond the download.

## The numbers

| Metric | Interval Timer | 100 Mile Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Size | 6 MB | 27 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rajendran Sajith Sajindran](https://appshunter.io/developer/1769186344) | [lohith nagaraj](https://appshunter.io/developer/1858773177) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-hiit/id6755467400)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer - Pro | $5.99 | per month |


### 100 Mile Challenge

[App page](https://appshunter.io/ios/app/100-mile-challengeaccepted/id6758025975)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is 100 Mile Challenge free?

100 Mile Challenge is free to download, with no in-app purchases.

### Do Interval Timer or 100 Mile Challenge have ads?

Interval Timer shows ads; 100 Mile Challenge does not.

---

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