极空BMS vs KL Serials
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
极空BMS
This application connects to a battery management system's active equalizer via Bluetooth. It allows for real-time monitoring of parameters and control over equipment settings.
- Real-time status monitoring
- Operating parameter settings
- Battery management system equipment control
- Bluetooth connectivity
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This APP is used in the battery management system, and connects to the active equalizer of the extreme space technology through Bluetooth to realize the parameter display and setting of the active equalizer. The specific function modules are as follows: -Real-time status monitoring; -Setting of operating parameters; -Battery management system equipment control.
KL Serials
This utility app measures various electrical parameters like voltage, current, and power. It also offers multiple protection functions, including over-voltage, over-current, and over-temperature alerts, while monitoring battery capacity in real-time.
- Measures voltage, current, power, and capacity
- Monitors watt-hours and time
- Over-voltage protection
- Over-current protection
- Over-temperature protection
- Real-time battery capacity monitoring
- Automatic current direction identification
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The KL-F series volt-ampere meter is a new type of coulomb meter that can measure various physical parameters such as voltage, current, power, charge and discharge capacity, watt-hours, and time. At the same time, it can also set parameters to achieve over-voltage protection, under-voltage protection, Multiple protection functions such as over current protection, over power protection, and over temperature protection. The meter can automatically identify the direction of the current, and can monitor the battery capacity in real time.
Screenshots
Verdict
The clearest difference is rating: KL Serials at 4.5 against 极空BMS's 3.5. KL Serials also leads on device support (3 vs 1) and iOS requirement (9.0 vs 17). 极空BMS's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (37 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.
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.
KL Serials holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: 极空BMS has 37 ratings behind it against 2, so its average is the more settled of the two.
极空BMS ships an update every 3 weeks, KL Serials every 3 months. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.
| Parameter | 极空BMS | KL Serials |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (37 ratings) | 4.5 (2 ratings) — better |
| Positive reviews | 34.8% of reviews | — |
| Number of ratings | 37 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 9.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 29 MB |
| Age rating | 17+ | 4+ |
| Developer | 鹏 张 | Hangzhou Junce Instruments Co., Ltd. |
Customer experience
极空BMS
KL Serials
In-app purchases
极空BMS
No in-app purchases
KL Serials
No in-app purchases
