# Invent Medical vs OPSB Sensor

The clearest difference is iOS requirement: OPSB Sensor at 13.4 against Invent Medical's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Invent Medical ships an update every 5 weeks, OPSB Sensor every 2 months. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Invent Medical | OPSB Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opsb-sensor/id6483759938/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 126 MB | 22 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [TechMed 3D](https://appshunter.io/developer/964196047) | [Digital Health Solutions](https://appshunter.io/developer/1716676119) |

## What reviewers say

### Invent Medical

[App page](https://appshunter.io/ios/app/invent-medical/id6444660189)

**Features:** macOS Compatibility

**In-app purchases:** none


### OPSB Sensor

[App page](https://appshunter.io/ios/app/opsb-sensor/id6483759938)

This app connects to sensors on orthotic braces to monitor patient wear patterns using thermal data. It offers real-time visualization, cloud storage, and secure, encrypted access. Gamification features encourage patient adherence to treatment plans.

**Highlights:** Real-time thermal data visualization, Cloud-based data storage, Bluetooth and QR code syncing, Automatic data upload, Encrypted and secure data access, Gamified patient engagement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invent Medical free?

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

### Is OPSB Sensor free?

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

### Do Invent Medical or OPSB Sensor have ads?

Neither Invent Medical nor OPSB Sensor shows ads.

### Which is updated more often, Invent Medical or OPSB Sensor?

Invent Medical ships an update every 5 weeks, and OPSB Sensor every 2 months. Most recently, Invent Medical was updated on September 11, 2026 and OPSB Sensor on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*