# OnTrack Run Interval Timer vs ProteinFit

The clearest difference is ads: OnTrack Run Interval Timer at none against ProteinFit's shown. OnTrack Run Interval Timer also leads on iOS requirement (16.2 vs 18.0). ProteinFit's advantage is update cadence (daily vs fortnightly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OnTrack Run Interval Timer sells 1 one-off in-app purchase and ProteinFit sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

OnTrack Run Interval Timer ships an update fortnightly, ProteinFit daily. Both last shipped on October 28, 2026.

## The numbers

| Metric | OnTrack Run Interval Timer | ProteinFit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Daily** |
| Size | 2 MB | 10 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jekal Ik](https://appshunter.io/developer/1860824839) | [DJIONI DEV](https://appshunter.io/developer/1586148736) |

## 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 |


### ProteinFit

[App page](https://appshunter.io/ios/app/proteinfit-protein-scanner/id6760417506)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProteinFit Pro Monthly | $3.99 | per month |
| ProteinFit Pro Annual | $34.99 | per year |


## Frequently asked questions

### Is OnTrack Run Interval Timer free?

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

### Is ProteinFit free?

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

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

ProteinFit shows ads; OnTrack Run Interval Timer does not.

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

OnTrack Run Interval Timer ships an update fortnightly, and ProteinFit daily. Most recently, OnTrack Run Interval Timer was updated on October 28, 2026 and ProteinFit 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.*