# Piro AFO vs Boston Sensor

The clearest difference is rating: Piro AFO at 5.0 against Boston Sensor's 3.7. Boston Sensor's advantage is update cadence (every 2 weeks vs every 5 months) and ratings volume (11 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Piro AFO holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Boston Sensor has 11 ratings behind it against 2, so its average is the more settled of the two.

Piro AFO ships an update every 5 months, Boston Sensor every 2 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Piro AFO | Boston Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/piro-afo/id1528167662/reviews)** | [3.7 (11 ratings)](https://appshunter.io/ios/app/boston-sensor/id1556323962/reviews) |
| Number of ratings | 2 | **11** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 61 MB | 142 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Invent Medical Group, s.r.o.](https://appshunter.io/developer/1488332944) | [Blue Maestro](https://appshunter.io/developer/773672141) |

## What reviewers say

### Piro AFO

[App page](https://appshunter.io/ios/app/piro-afo/id1528167662)

This app allows healthcare professionals to easily configure and 3D scan patients' feet for custom ankle-foot orthoses. It optimizes designs based on patient data and offers aesthetic customization options.

**Highlights:** 3D scan patient feet, Configure custom AFO/SMO, Optimize orthosis with patient data, Choose orthosis type by indication, Customize color and labels, Integrates with 3D Size Me app

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

**In-app purchases:** none


### Boston Sensor

[App page](https://appshunter.io/ios/app/boston-sensor/id1556323962)

This app wirelessly records and displays the internal temperature of a brace, allowing patients to track their actual wear time. Downloaded reports show daily wear patterns and average hours worn, which can be emailed to healthcare providers.

**Highlights:** Wireless Bluetooth Low Energy sensor integration, Records internal brace temperature, Tracks actual wear time, Generates daily wear pattern reports, Calculates average hours worn per day, Email reports to care team

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Piro AFO free?

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

### Is Boston Sensor free?

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

### Which has better reviews, Piro AFO or Boston Sensor?

Piro AFO is rated higher. Piro AFO averages 5.0 out of 5 from 2 ratings, while Boston Sensor averages 3.7 from 11 ratings.

### Do Piro AFO or Boston Sensor have ads?

Neither Piro AFO nor Boston Sensor shows ads.

### Which is updated more often, Piro AFO or Boston Sensor?

Piro AFO ships an update every 5 months, and Boston Sensor every 2 weeks. Most recently, Piro AFO was updated on October 6, 2026 and Boston Sensor on October 12, 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.*