# Overkill Solar vs EASUN

The clearest difference is review sentiment: Overkill Solar at 100% against EASUN's 0%. 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.

Overkill Solar ships an update every 4 months, EASUN every 2 months. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Overkill Solar | EASUN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 21 MB | 38 MB |
| Requires iOS | 13.4 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) | [Nanchang Yepai Technology Co., Ltd.](https://appshunter.io/developer/1503296093) |

## 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


### EASUN

[App page](https://appshunter.io/ios/app/easun/id6514313618)

Monitor your battery's real-time status, including voltage, current, and internal resistance. Track historical data, compare individual cell performance, and receive alerts for critical conditions like over/under voltage and temperature. This system helps optimize lithium battery health and lifespan.

**Highlights:** Real-time voltage, current, power monitoring, Instrument panel and numerical displays, Chart timeline for historical data, Cell comparison and voltage difference, Cell balance display, Temperature and fault alarms, Single battery voltage and alarm status

**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 EASUN free?

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

### Do Overkill Solar or EASUN have ads?

Neither Overkill Solar nor EASUN shows ads.

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

Overkill Solar ships an update every 4 months, and EASUN every 2 months. Most recently, Overkill Solar was updated on September 28, 2026 and EASUN on October 2, 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.*