GMtech vs BLACK OAK Lithium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GMtech
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* 监控 GMtech LiFePo4 电池的最佳实用工具。 * 由于蓝牙硬件功能，APP每次只能连接一块电池。 * 如果您想将此电池连接到另一部手机，请退出此程序。 * 未经经销商许可，请勿更改您的设置
BLACK OAK Lithium
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.
- 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
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BLACK OAK Lithium is a powerful battery monitoring app that connects via Bluetooth to your battery management system (BMS) to display real-time battery data—including State of Charge (SOC), current, capacity, power, individual cell voltages, cycle count, and protection event logs. Beyond single-battery monitoring, BLACK OAK also supports simulating custom battery pack configurations by virtually connecting multiple batteries in series or parallel. The app automatically calculates and displays the combined voltage, total current, and aggregated power output, making it an essential tool for engineers, hobbyists, and professionals working with DIY battery packs, EVs, solar storage, or portable power systems.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GMtech | BLACK OAK Lithium |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 37 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | GM Outdoor | Black Oak LED |
In-app purchases
GMtech
No in-app purchases
BLACK OAK Lithium
No in-app purchases
