# USB vs Temprevent

The clearest difference is update cadence: USB at monthly against Temprevent's every 10 months. USB also leads on iOS requirement (13.0 vs 15.0). 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.

USB ships an update monthly, Temprevent every 10 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | USB | Temprevent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (16 ratings)](https://appshunter.io/ios/app/usb-connect/id1563292212/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free | — |
| Size | 74 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [U.S. Boiler Company, LLC.](https://appshunter.io/developer/608292333) | [Parker Bass](https://appshunter.io/developer/1335034710) |

## What reviewers say

### USB

[App page](https://appshunter.io/ios/app/usb-connect/id1563292212)

This tool connects to U.S. Boiler modulating condensing boilers via a Bluetooth adapter for commissioning, diagnostics, and service. It offers wizards for startup and troubleshooting, data logging, and remote support capabilities through a web portal.

**Highlights:** Bluetooth connectivity to boilers, Commissioning, diagnostic, and service functions, Startup, troubleshoot, and service wizards, Cloud data logging and reporting, Remote support via web portal, Boiler firmware and parameter updates

**In-app purchases:** none


### Temprevent

[App page](https://appshunter.io/ios/app/temprevent/id1638079676)

**In-app purchases:** none


## Frequently asked questions

### Is USB free?

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

### Is Temprevent free?

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

### Do USB or Temprevent have ads?

Neither USB nor Temprevent shows ads.

### Which is updated more often, USB or Temprevent?

USB ships an update monthly, and Temprevent every 10 months. Most recently, USB was updated on October 10, 2026 and Temprevent on October 11, 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.*