# ABC vs Overkill Solar

The clearest difference is review sentiment: Overkill Solar at 100% against ABC's 21%. Overkill Solar also leads on rating (4.7 vs 1.8). ABC's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (10.0 vs 13.4). On price, ratings volume, 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.

Overkill Solar holds the better App Store score, 4.7 against 1.8. Both are backed by a comparable volume of ratings — 25 and 16 respectively. Written reviews point the same way: 21% of ABC's written reviews are positive against 100% of Overkill Solar's.

ABC ships an update every 2 months, Overkill Solar every 4 months. The most recent releases landed on September 18, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | ABC | Overkill Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (25 ratings)](https://appshunter.io/ios/app/abc-bms/id1597074571/reviews) | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** |
| Number of ratings | **25** | 16 |
| Positive reviews | 21.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 6 MB | 21 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [春光 宋](https://appshunter.io/developer/1598075757) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## What reviewers say

### ABC

[App page](https://appshunter.io/ios/app/abc-bms/id1597074571)

This application serves as a battery management system, connecting users to their secondary batteries. It focuses on protecting the battery, optimizing its utilization, and preventing overcharging and over-discharging. It is suitable for various lithium battery products.

**Highlights:** Secondary battery protection, Optimizes battery utilization, Prevents overcharging, Prevents over-discharging, Supports lithium battery products

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ABC free?

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

### Is Overkill Solar free?

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

### Which has better reviews, ABC or Overkill Solar?

Overkill Solar is rated higher. ABC averages 1.8 out of 5 from 25 ratings, while Overkill Solar averages 4.7 from 16 ratings.

### Do ABC or Overkill Solar have ads?

Neither ABC nor Overkill Solar shows ads.

### Which is updated more often, ABC or Overkill Solar?

ABC ships an update every 2 months, and Overkill Solar every 4 months. Most recently, ABC was updated on September 18, 2026 and Overkill Solar on August 18, 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.*