# Overkill Solar vs BATTERY BT

The clearest difference is rating: BATTERY BT at 5.0 against Overkill Solar's 4.7. Overkill Solar's advantage is ratings volume (16 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

BATTERY BT holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Overkill Solar has 16 ratings behind it against 1, so its average is the more settled of the two.

Overkill Solar ships an update every 4 months, BATTERY BT every 2 months. The most recent releases landed on October 14, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Overkill Solar | BATTERY BT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/battery-bt/id6751628283/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 21 MB | 31 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) | [碧华 舒](https://appshunter.io/developer/1787849397) |

## 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


### BATTERY BT

[App page](https://appshunter.io/ios/app/battery-bt/id6751628283)

This app provides intelligent battery management for lithium battery systems. It offers real-time monitoring, advanced safety functions, active balancing, and performance analysis. Transform complex battery data into actionable insights for reliable protection.

**Highlights:** Real-time battery monitoring, Advanced safety functions, Active battery balancing, Battery performance analysis, Simplified BMS functions, Wireless software updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Overkill Solar free?

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

### Is BATTERY BT free?

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

### Which has better reviews, Overkill Solar or BATTERY BT?

BATTERY BT is rated higher. Overkill Solar averages 4.7 out of 5 from 16 ratings, while BATTERY BT averages 5.0 from 1 ratings.

### Do Overkill Solar or BATTERY BT have ads?

Neither Overkill Solar nor BATTERY BT shows ads.

### Which is updated more often, Overkill Solar or BATTERY BT?

Overkill Solar ships an update every 4 months, and BATTERY BT every 2 months. Most recently, Overkill Solar was updated on October 14, 2026 and BATTERY BT on October 22, 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.*