# PB Intervals vs Interval Randomizer

The clearest difference is in-app purchases: Interval Randomizer at none against PB Intervals's 1. PB Intervals's advantage is iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. PB Intervals sells 1 one-off in-app purchase. Interval Randomizer asks for nothing beyond the download.

## The numbers

| Metric | PB Intervals | Interval Randomizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 12 MB | 6 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Creative Banks Ltd](https://appshunter.io/developer/1771001473) | [Hitfire Production AB](https://appshunter.io/developer/1517601288) |

## What reviewers say

### PB Intervals

[App page](https://appshunter.io/ios/app/pb-intervals/id6723896953)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PB Interval Premium | $6.99 | one-time |


### Interval Randomizer

[App page](https://appshunter.io/ios/app/interval-randomizer-hiit/id6742220783)

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

**In-app purchases:** none


## Frequently asked questions

### Is PB Intervals free?

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

### Is Interval Randomizer free?

Interval Randomizer is free to download, with no in-app purchases.

### Do PB Intervals or Interval Randomizer have ads?

Neither PB Intervals nor Interval Randomizer shows ads.

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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.*