# MIR SMART ONE vs Swift Ray 1

The clearest difference is update cadence: Swift Ray 1 at every 6 days against MIR SMART ONE's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MIR SMART ONE ships an update every 4 months, Swift Ray 1 every 6 days. The most recent releases landed on October 20, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | MIR SMART ONE | Swift Ray 1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (22 ratings)](https://appshunter.io/ios/app/mir-smart-one/id1010664940/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 22 MB | 135 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [MIR Medical International Research](https://appshunter.io/developer/1010662698) | [Swift Medical Inc](https://appshunter.io/developer/1023923443) |

## What reviewers say

### MIR SMART ONE

[App page](https://appshunter.io/ios/app/mir-smart-one/id1010664940)

This app works with a connected device to measure respiratory function, including FEV1 and PEF. It provides real-time feedback with a traffic light system and stores results for easy tracking and sharing. Personal health data is used solely for calculating target values.

**Highlights:** Bluetooth Peak Flow and FEV1 measurement, Real-time data transfer and animation, Traffic light health indicator, Automatic test result storage, Symptom and note logging, PDF report generation for sharing, Apple Health integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Swift Ray 1

[App page](https://appshunter.io/ios/app/swift-ray-1/id6503016967)

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

**In-app purchases:** none


## Frequently asked questions

### Is MIR SMART ONE free?

MIR SMART ONE is free to download, with no in-app purchases.

### Is Swift Ray 1 free?

Swift Ray 1 is free to download, with no in-app purchases.

### Do MIR SMART ONE or Swift Ray 1 have ads?

Neither MIR SMART ONE nor Swift Ray 1 shows ads.

### Which is updated more often, MIR SMART ONE or Swift Ray 1?

MIR SMART ONE ships an update every 4 months, and Swift Ray 1 every 6 days. Most recently, MIR SMART ONE was updated on October 20, 2026 and Swift Ray 1 on October 30, 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.*