# Overkill Solar vs DIGI MARKER

The clearest difference is update cadence: DIGI MARKER at fortnightly against Overkill Solar's every 4 months. DIGI MARKER also leads on rating (5.0 vs 4.7). Overkill Solar's advantage is ratings volume (16 vs 1) and iOS requirement (13.4 vs 15.5). On price, review sentiment, 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.

DIGI MARKER 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. Written reviews split almost evenly too, at 100% and 100% positive.

Overkill Solar ships an update every 4 months, DIGI MARKER fortnightly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Overkill Solar | DIGI MARKER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/digi-marker/id6751325183/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 21 MB | 105 MB |
| Requires iOS | **13.4** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) | [Shenzhen Xihe Innovation Technology Co., Ltd.](https://appshunter.io/developer/1834633825) |

## 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


### DIGI MARKER

[App page](https://appshunter.io/ios/app/digi-marker/id6751325183)

Monitor battery status in real-time, viewing data like voltage, current, and temperature. Conveniently set various parameters for different battery types.

**Highlights:** Real-time status monitoring, View voltage, current, temperature, View capacity, Set battery parameters, Supports different battery types

**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 DIGI MARKER free?

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

### Which has better reviews, Overkill Solar or DIGI MARKER?

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

### Do Overkill Solar or DIGI MARKER have ads?

Neither Overkill Solar nor DIGI MARKER shows ads.

### Which is updated more often, Overkill Solar or DIGI MARKER?

Overkill Solar ships an update every 4 months, and DIGI MARKER fortnightly. Most recently, Overkill Solar was updated on October 14, 2026 and DIGI MARKER 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.*