# Overkill Solar vs JK BMS

The clearest difference is update cadence: JK BMS at weekly against Overkill Solar's every 4 months. Overkill Solar's advantage is rating (4.7 vs 4.3) and iOS requirement (13.4 vs 15.6). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Overkill Solar holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 16 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Overkill Solar ships an update every 4 months, JK BMS weekly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Overkill Solar | JK BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** | [4.3 (7 ratings)](https://appshunter.io/ios/app/jk-bms/id6773679719/reviews) |
| Number of ratings | **16** | 7 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | Free |
| Size | 21 MB | 17 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) | [鹏 张](https://appshunter.io/developer/1425725690) |

## What reviewers say

### Overkill Solar

[App page](https://appshunter.io/ios/app/overkill-solar/id6444233824)

This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.

**Highlights:** Monitor cell voltage and capacity, Control charging and discharging ports, Calibrate voltage and current, Configure balancer and protection values, Log voltage, current, and power, Monitor BMS alarms and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


### JK BMS

[App page](https://appshunter.io/ios/app/jk-bms/id6773679719)

This utility app connects via Bluetooth to an active balancer for battery management. It allows for real-time monitoring of system status, setting operational parameters, and controlling battery management devices.

**Highlights:** Real-time status monitoring, Running parameter settings, Battery management system device control, Bluetooth connectivity, Active balancer integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Overkill Solar free?

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

### Is JK BMS free?

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

### Which has better reviews, Overkill Solar or JK BMS?

Overkill Solar is rated higher. Overkill Solar averages 4.7 out of 5 from 16 ratings, while JK BMS averages 4.3 from 7 ratings.

### Do Overkill Solar or JK BMS have ads?

Neither Overkill Solar nor JK BMS shows ads.

### Which is updated more often, Overkill Solar or JK BMS?

Overkill Solar ships an update every 4 months, and JK BMS weekly. Most recently, Overkill Solar was updated on October 14, 2026 and JK BMS 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.*