# GMtech vs BLACK OAK Lithium

GMtech and BLACK OAK Lithium are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | GMtech | BLACK OAK Lithium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/black-oak-lithium/id6756562714/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | — | Free |
| Size | 37 MB | 54 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GM Outdoor](https://appshunter.io/developer/1837853910) | [Black Oak LED](https://appshunter.io/developer/1850704106) |

## What reviewers say

### GMtech

[App page](https://appshunter.io/ios/app/gmtech/id6752009314)

**Features:** macOS Compatibility

**In-app purchases:** none


### BLACK OAK Lithium

[App page](https://appshunter.io/ios/app/black-oak-lithium/id6756562714)

Monitor your battery system in real-time via Bluetooth. View detailed metrics like State of Charge, voltage, and cycle count. Simulate custom battery pack configurations for various applications.

**Highlights:** Real-time battery data monitoring, Bluetooth BMS connection, State of Charge (SOC) display, Individual cell voltage readings, Protection event logs, Simulate custom battery pack configurations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GMtech free?

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

### Is BLACK OAK Lithium free?

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

### Do GMtech or BLACK OAK Lithium have ads?

Neither GMtech nor BLACK OAK Lithium shows ads.

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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.*