# OnTrack Run Interval Timer vs IntervalForge

The clearest difference is iOS requirement: OnTrack Run Interval Timer at 16.2 against IntervalForge's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OnTrack Run Interval Timer ships an update fortnightly, IntervalForge every 3 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | OnTrack Run Interval Timer | IntervalForge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 2 MB | 2 MB |
| Requires iOS | **16.2** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jekal Ik](https://appshunter.io/developer/1860824839) | [Shuto Nishiyama](https://appshunter.io/developer/1879174354) |

## What reviewers say

### OnTrack Run Interval Timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Background Mode | $0.99 | one-time |


### IntervalForge

[App page](https://appshunter.io/ios/app/intervalforge-hiit-and-tabata/id6759606731)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IntervalForge Pro | $2.99 | one-time |


## Frequently asked questions

### Is OnTrack Run Interval Timer free?

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

### Is IntervalForge free?

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

### Do OnTrack Run Interval Timer or IntervalForge have ads?

Neither OnTrack Run Interval Timer nor IntervalForge shows ads.

### Which is updated more often, OnTrack Run Interval Timer or IntervalForge?

OnTrack Run Interval Timer ships an update fortnightly, and IntervalForge every 3 weeks. Most recently, OnTrack Run Interval Timer was updated on October 28, 2026 and IntervalForge on October 28, 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.*