# Interval Flow vs BreathLyft

The clearest difference is in-app purchases: BreathLyft at none against Interval Flow's 1. BreathLyft also leads on iOS requirement (13.0 vs 15.6). Interval Flow's advantage is update cadence (every 2 weeks vs every 7 months). On price, ads and device support there is nothing between them.

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

Interval Flow ships an update every 2 weeks, BreathLyft every 7 months. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Interval Flow | BreathLyft |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Size | 8 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tegyaan](https://appshunter.io/developer/1711584632) | [Yash Bansal](https://appshunter.io/developer/1843390291) |

## What reviewers say

### Interval Flow

[App page](https://appshunter.io/ios/app/interval-flow/id6469113776)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multiple Programs | $3.99 | one-time |


### BreathLyft

[App page](https://appshunter.io/ios/app/breathlyft/id6753305547)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Flow free?

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

### Is BreathLyft free?

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

### Do Interval Flow or BreathLyft have ads?

Neither Interval Flow nor BreathLyft shows ads.

### Which is updated more often, Interval Flow or BreathLyft?

Interval Flow ships an update every 2 weeks, and BreathLyft every 7 months. Most recently, Interval Flow was updated on October 10, 2026 and BreathLyft on October 1, 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.*