# Overkill Solar vs KA Lithium

Overkill Solar and KA Lithium are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, KA Lithium every 6 months. The most recent releases landed on August 18, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Overkill Solar | KA Lithium |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free | — |
| Size | 21 MB | 59 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) | [Kickass Products Pty Ltd](https://appshunter.io/developer/1387751158) |

## 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


### KA Lithium

[App page](https://appshunter.io/ios/app/ka-lithium/id6480479006)

**In-app purchases:** none


## Frequently asked questions

### Is Overkill Solar free?

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

### Is KA Lithium free?

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

### Do Overkill Solar or KA Lithium have ads?

Neither Overkill Solar nor KA Lithium shows ads.

### Which is updated more often, Overkill Solar or KA Lithium?

Overkill Solar ships an update every 4 months, and KA Lithium every 6 months. Most recently, Overkill Solar was updated on August 18, 2026 and KA Lithium on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*