# ChainFlow vs Run/Walk Interval Training

The clearest difference is in-app purchases: Run/Walk Interval Training at none against ChainFlow's 1. Run/Walk Interval Training also leads on update cadence (every 3 days vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ChainFlow sells 1 one-off in-app purchase. Run/Walk Interval Training asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ChainFlow against 5.0 for Run/Walk Interval Training. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ChainFlow ships an update every 2 months, Run/Walk Interval Training every 3 days. The most recent releases landed on September 3, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ChainFlow | Run/Walk Interval Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chainflow-interval-timer/id6755700190/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/runwalk-interval-training/id6758255233/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Freemium | **Free** |
| Size | 22 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Ebako-Hodgson](https://appshunter.io/developer/1855675493) | [Jordan George](https://appshunter.io/developer/1871771697) |

## What reviewers say

### ChainFlow

[App page](https://appshunter.io/ios/app/chainflow-interval-timer/id6755700190)

Create highly customized interval timers for any routine, from HIIT workouts to study sessions. Set unique work and rest periods for each segment, with clear audio cues and a distraction-free interface. Save your routines for easy access and hands-free operation.

**Highlights:** Custom interval chaining, Adjustable work/rest times per interval, Clear audio cues, Hands-free operation, Screen-off functionality, Routine saving, Dark interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChainFlow Pro | $4.99 | one-time |


### Run/Walk Interval Training

[App page](https://appshunter.io/ios/app/runwalk-interval-training/id6758255233)

This app provides a customizable timer for interval training, guiding users through custom run and walk durations with visual and audio cues. Track your progress with workout history and enjoy a clean, intuitive interface designed for focused fitness sessions.

**Highlights:** Customizable run/walk durations, Adjustable number of intervals, Visual and audio feedback, Pause and resume functionality, Workout history tracking, Color-coded phases, Dark mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChainFlow free?

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

### Is Run/Walk Interval Training free?

Run/Walk Interval Training is free to download, with no in-app purchases.

### Which has better reviews, ChainFlow or Run/Walk Interval Training?

ChainFlow and Run/Walk Interval Training are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ChainFlow or Run/Walk Interval Training have ads?

Neither ChainFlow nor Run/Walk Interval Training shows ads.

### Which is updated more often, ChainFlow or Run/Walk Interval Training?

ChainFlow ships an update every 2 months, and Run/Walk Interval Training every 3 days. Most recently, ChainFlow was updated on September 3, 2026 and Run/Walk Interval Training on September 8, 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.*