# PowerMon X vs Overkill Solar

The clearest difference is rating: Overkill Solar at 4.7 against PowerMon X's 4.0. Overkill Solar also leads on review sentiment (100% vs 67%) and ratings volume (16 vs 5). PowerMon X's advantage is update cadence (every 3 weeks vs every 4 months). 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.

Overkill Solar holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews point the same way: 67% of PowerMon X's written reviews are positive against 100% of Overkill Solar's.

PowerMon X ships an update every 3 weeks, Overkill Solar every 4 months. The most recent releases landed on September 10, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | PowerMon X | Overkill Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/powermon-x/id1594717448/reviews) | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** |
| Number of ratings | 5 | **16** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 10 MB | 21 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thornwave Labs Inc](https://appshunter.io/developer/1289006248) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## What reviewers say

### PowerMon X

[App page](https://appshunter.io/ios/app/powermon-x/id1594717448)

Monitor battery levels and performance of compatible devices via Bluetooth. View redesigned log data charts and access improved screens. Requires a physical PowerMon device.

**Highlights:** Redesigned log data charts, Improved screens, Compatibility with newest devices, Compatibility with new firmware, Bluetooth monitoring, Requires physical device

**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 PowerMon X free?

PowerMon X 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, PowerMon X or Overkill Solar?

Overkill Solar is rated higher. PowerMon X averages 4.0 out of 5 from 5 ratings, while Overkill Solar averages 4.7 from 16 ratings.

### Do PowerMon X or Overkill Solar have ads?

Neither PowerMon X nor Overkill Solar shows ads.

### Which is updated more often, PowerMon X or Overkill Solar?

PowerMon X ships an update every 3 weeks, and Overkill Solar every 4 months. Most recently, PowerMon X was updated on September 10, 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.*