# Interval Timer vs IntervalFlow

The clearest difference is in-app purchases: IntervalFlow at none against Interval Timer's 1. Interval Timer's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

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

Interval Timer ships an update weekly, IntervalFlow every 4 weeks. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Interval Timer | IntervalFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (28 ratings)](https://appshunter.io/ios/app/interval-timer-go-fit-now/id1346472921/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Free | — |
| Size | 30 MB | 1 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [宇超 朱](https://appshunter.io/developer/837606978) | [Hyunwoo Lee](https://appshunter.io/developer/1883358620) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-go-fit-now/id1346472921)

This professional and easy-to-use interval timer allows for customizable circuit training plans with voice prompts and background operation. It supports music integration and Apple Health, making it ideal for various fitness routines.

**Highlights:** Customizable training plans, Smart voice prompts, Automatic music playback, Background operation, Apple Health integration, Apple Watch support

**Features:** macOS Compatibility, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UNLIMITED HIIT TIMER | $3.99 | one-time |


### IntervalFlow

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is IntervalFlow free?

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

### Do Interval Timer or IntervalFlow have ads?

Neither Interval Timer nor IntervalFlow shows ads.

### Which is updated more often, Interval Timer or IntervalFlow?

Interval Timer ships an update weekly, and IntervalFlow every 4 weeks. Most recently, Interval Timer was updated on September 16, 2026 and IntervalFlow on September 18, 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.*