# ChainFlow vs Lower Back Stretching

The clearest difference is in-app purchases: Lower Back Stretching at none against ChainFlow's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ChainFlow sells 1 one-off in-app purchase. Lower Back Stretching asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ChainFlow | Lower Back Stretching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chainflow-interval-timer/id6755700190/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | — |
| Size | 22 MB | 4 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) | [Kinetic Helix LLC](https://appshunter.io/developer/6771575124) |

## 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 |


### Lower Back Stretching

[App page](https://appshunter.io/ios/app/lower-back-stretching/id6773747358)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChainFlow free?

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

### Is Lower Back Stretching free?

Lower Back Stretching is free to download, with no in-app purchases.

### Do ChainFlow or Lower Back Stretching have ads?

Neither ChainFlow nor Lower Back Stretching shows ads.

### Which is updated more often, ChainFlow or Lower Back Stretching?

ChainFlow ships an update every 2 months, and Lower Back Stretching every 2 months. Most recently, ChainFlow was updated on October 5, 2026 and Lower Back Stretching on October 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.*