# BatteryPlus vs USB

The clearest difference is review sentiment: USB at 75% against BatteryPlus's 11%. USB also leads on rating (4.2 vs 2.3) and update cadence (monthly vs every 4 months). 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.

USB holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: USB has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 11% of BatteryPlus's written reviews are positive against 75% of USB's.

BatteryPlus ships an update every 4 months, USB monthly. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BatteryPlus | USB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/batteryplus/id1367899759/reviews) | **[4.2 (16 ratings)](https://appshunter.io/ios/app/usb-connect/id1563292212/reviews)** |
| Number of ratings | 3 | **16** |
| Positive reviews | 11.1% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | Free |
| Size | 10 MB | 74 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NINGBO CARSTEL MANUFACTURING CO.,LTD](https://appshunter.io/developer/1148601876) | [U.S. Boiler Company, LLC.](https://appshunter.io/developer/608292333) |

## What reviewers say

### BatteryPlus

[App page](https://appshunter.io/ios/app/batteryplus/id1367899759)

Monitor and manage your smartphone's charging process remotely. This utility app helps you keep track of your device's power status even when you're not home. It supports multiple languages for a wider user base.

**Highlights:** Remote charging monitoring, Charging process control, Multi-language support, Smart phone integration

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is BatteryPlus free?

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

### Is USB free?

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

### Which has better reviews, BatteryPlus or USB?

USB is rated higher. BatteryPlus averages 2.3 out of 5 from 3 ratings, while USB averages 4.2 from 16 ratings.

### Do BatteryPlus or USB have ads?

Neither BatteryPlus nor USB shows ads.

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

BatteryPlus ships an update every 4 months, and USB monthly. Most recently, BatteryPlus was updated on October 11, 2026 and USB on October 10, 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.*