# Xiaoxiang BMS vs Resistor

The clearest difference is rating: Xiaoxiang BMS at 3.6 against Resistor's 3.0. Xiaoxiang BMS also leads on update cadence (every 4 weeks vs every 16 months) and ratings volume (66 vs 3). Resistor's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Xiaoxiang BMS sells 1 one-off in-app purchase. Resistor asks for nothing beyond the download.

Xiaoxiang BMS holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: Xiaoxiang BMS has 66 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of Xiaoxiang BMS's written reviews are positive against 50% of Resistor's.

Xiaoxiang BMS ships an update every 4 weeks, Resistor every 16 months. The most recent releases landed on September 28, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Xiaoxiang BMS | Resistor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (66 ratings)](https://appshunter.io/ios/app/xiaoxiang-bms/id1375405426/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/resistor-electronics-tools/id6504726625/reviews) |
| Number of ratings | **66** | 3 |
| Positive reviews | **54.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 4 weeks** | Every 16 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 10 MB | 22 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Xiaoxiang BMS

[App page](https://appshunter.io/ios/app/xiaoxiang-bms/id1375405426)

Monitor and manage your Bluetooth-enabled battery management systems (BMS) for Li-Ion and LiFePo4 packs. Track cell voltage, capacity, current, and temperature. Switch battery outputs on/off and configure settings remotely.

**Highlights:** Monitor cell voltage, capacity, current, and temperature, Switch battery output on/off, Calibrate cell voltage and current, Configure balancer and BMS capacity, Change Bluetooth advertised name, Unlock hardware protected BMS (firmware v20+), Set PIN code for BMS access

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $7.99 | one-time |


### Resistor

[App page](https://appshunter.io/ios/app/resistor-electronics-tools/id6504726625)

This application simplifies electronic circuit calculations with tools for series/parallel resistance, LED current limiting, and three-phase circuit conversions. It also features a resistor color code decoder for quick component identification.

**Highlights:** Series/parallel resistor calculator, LED series resistor calculator, Star-delta and delta-star converters, Resistor color code decoder, Intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Xiaoxiang BMS free?

Xiaoxiang BMS is free to download, with in-app purchases available.

### Is Resistor free?

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

### Which has better reviews, Xiaoxiang BMS or Resistor?

Xiaoxiang BMS is rated higher. Xiaoxiang BMS averages 3.6 out of 5 from 66 ratings, while Resistor averages 3.0 from 3 ratings.

### Do Xiaoxiang BMS or Resistor have ads?

Both Xiaoxiang BMS and Resistor show ads.

### Which is updated more often, Xiaoxiang BMS or Resistor?

Xiaoxiang BMS ships an update every 4 weeks, and Resistor every 16 months. Most recently, Xiaoxiang BMS was updated on September 28, 2026 and Resistor on September 9, 2026.

---

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