# WBMS vs Overkill Solar

The clearest difference is update cadence: Overkill Solar at every 4 months against WBMS's every 24 months. Overkill Solar also leads on ratings volume (16 vs 1) and iOS requirement (13.4 vs 15.6). WBMS's advantage is rating (5.0 vs 4.7). 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.

WBMS 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.

WBMS ships an update every 24 months, Overkill Solar every 4 months. The most recent releases landed on September 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | WBMS | Overkill Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wbms/id1582572321/reviews)** | [4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews) |
| Number of ratings | 1 | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 25 MB | 21 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WOOLIIS TECHNOLOGY CO.,](https://appshunter.io/developer/1582572323) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## What reviewers say

### WBMS

[App page](https://appshunter.io/ios/app/wbms/id1582572321)

This application connects to intelligent electronic devices to display real-time and historical data. It allows users to export historical data in table format and supports both new and older versions of compatible devices.

**Highlights:** Real-time data display, Historical data charts, Export historical data, Supports new and old devices, Updated interface design

**Features:** macOS Compatibility

**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 WBMS free?

WBMS 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, WBMS or Overkill Solar?

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

### Do WBMS or Overkill Solar have ads?

Neither WBMS nor Overkill Solar shows ads.

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

WBMS ships an update every 24 months, and Overkill Solar every 4 months. Most recently, WBMS was updated on September 16, 2026 and Overkill Solar on October 14, 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.*