# IntervalFlow vs Between

The clearest difference is in-app purchases: IntervalFlow at none against Between's 2. IntervalFlow also leads on ads (none vs shown). Between's advantage is update cadence (daily vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Between sells 2 in-app purchases, starting at $2.99 per month. IntervalFlow asks for nothing beyond the download.

IntervalFlow ships an update every 3 weeks, Between daily. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | IntervalFlow | Between |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 2 MB | 20 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hyunwoo Lee](https://appshunter.io/developer/1883358620) | [Anthony Frigo](https://appshunter.io/developer/6816556975) |

## What reviewers say

### IntervalFlow

[App page](https://appshunter.io/ios/app/intervalflow-hiit-timer/id6788945849)

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

**In-app purchases:** none


### Between

[App page](https://appshunter.io/ios/app/between-workout-timer/id6816556973)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Between Plus Monthly | $2.99 | per month |
| Between Plus Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is IntervalFlow free?

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

### Is Between free?

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

### Do IntervalFlow or Between have ads?

Between shows ads; IntervalFlow does not.

### Which is updated more often, IntervalFlow or Between?

IntervalFlow ships an update every 3 weeks, and Between daily. Most recently, IntervalFlow was updated on October 6, 2026 and Between on October 14, 2026.

---

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