# KL Serials vs ANCEL BM200

The clearest difference is rating: KL Serials at 4.5 against ANCEL BM200's 3.4. KL Serials also leads on iOS requirement (9.0 vs 15.6). ANCEL BM200's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (30 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.

KL Serials holds the better App Store score, 4.5 against 3.4. That said, the two scores are not equally well evidenced: ANCEL BM200 has 30 ratings behind it against 2, so its average is the more settled of the two.

KL Serials ships an update every 3 months, ANCEL BM200 every 3 weeks. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | KL Serials | ANCEL BM200 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/kl-serials/id1576480701/reviews)** | [3.4 (30 ratings)](https://appshunter.io/ios/app/ancel-bm200/id1669132898/reviews) |
| Number of ratings | 2 | **30** |
| Positive reviews | — | 45.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 29 MB | 30 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Junce Instruments Co., Ltd.](https://appshunter.io/developer/1535583983) | [OBDSPACE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1434956144) |

## What reviewers say

### KL Serials

[App page](https://appshunter.io/ios/app/kl-serials/id1576480701)

This utility app measures various electrical parameters like voltage, current, and power. It also offers multiple protection functions, including over-voltage, over-current, and over-temperature alerts, while monitoring battery capacity in real-time.

**Highlights:** Measures voltage, current, power, and capacity, Monitors watt-hours and time, Over-voltage protection, Over-current protection, Over-temperature protection, Real-time battery capacity monitoring, Automatic current direction identification

**Features:** macOS Compatibility

**In-app purchases:** none


### ANCEL BM200

[App page](https://appshunter.io/ios/app/ancel-bm200/id1669132898)

Monitor your car battery's health in real-time. This app tests the voltage of your starting and charging systems, providing detailed insights into your battery's condition. View all data on your phone via Bluetooth for easy car battery power management.

**Highlights:** Real-time voltage monitoring, Starting system testing, Charging system testing, Record start/stop times, Bluetooth data display, Battery power management

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

**In-app purchases:** none


## Frequently asked questions

### Is KL Serials free?

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

### Is ANCEL BM200 free?

ANCEL BM200 is free to download, with no in-app purchases.

### Which has better reviews, KL Serials or ANCEL BM200?

KL Serials is rated higher. KL Serials averages 4.5 out of 5 from 2 ratings, while ANCEL BM200 averages 3.4 from 30 ratings.

### Do KL Serials or ANCEL BM200 have ads?

Neither KL Serials nor ANCEL BM200 shows ads.

### Which is updated more often, KL Serials or ANCEL BM200?

KL Serials ships an update every 3 months, and ANCEL BM200 every 3 weeks. Most recently, KL Serials was updated on October 8, 2026 and ANCEL BM200 on October 21, 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.*