PowerMeter vs LED System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerMeter
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1. Basic function page (welcome page/connection matching/technical support) Welcome page: Once you enter the smart meter app page, you will automatically jump to the next page after the app is launched. Connection pairing: APP guide the user to open the search for the Bluetooth device, and the search results are displayed in a list. Technical support: Service users at any time, put customer service functions in the system interface to facilitate user assistance. 2. Communication parameter settings Different connection modes contain RS-485 or Ethernet can be set for different environments. Such as the baud rate, the same bit, the data bit, the stop bit, the IP address, the subnet mask, and the gateway address, Modbus TCP connection port, and other different parameters. 3. Phase line parameter setting Different parameter settings can be made for four wiring types such as 1P2W, 1P3W, 3P3W, and 3P4W. Each setting item needs to be adjusted according to the physical wiring system and C.T. serial connection mode, and should be paid attention to the correctness of the serial connection mode of each interface. 4. C.T. parameter setting The APP provide 333mV and 5A equalizer parameter settings and users can confirm whether the current matches the set value. 5. Other functions If necessary, users can also reset the hardware directly (all parameters are restored to factory settings).
LED System
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这是一个用来管理LED价格牌的APP,用户通过这个应用可以集中管理分布于各地的价格牌。价格牌被分组管理。用户可以查询和设置价格牌的显示数值,也可以查询和设置价格牌的亮度。每个价格牌最多可显示12行价格信息,每行可轮流显示现金价格和信用卡价格。 用户需要有权限才能操作,用户操作权限分为4级: 1. 超级管理员:整个系统的最高管理者,管理超级操作员和一般管理员。 2. 超级操作员:由超级管用员创建,可以查看系统中所有的价格牌信息,但是没有设置权限。 3. 一般管理员:由超级管用员创建,可以增删分组,增删价格牌,增删一般操作员,给一般操作员分配对分组的权限。 4. 一般操作员:由一般管理员创建,具体权限由创建他的一般管理员分配,可以拥有对分组的如下权限:查看分组价格牌、编辑分组价格牌、设置分组价格牌显示的价格、升级价格牌固件。
Screenshots
Verdict
The clearest difference is update cadence: LED System at weekly against PowerMeter's every 2 months. PowerMeter's advantage is iOS requirement (13.0 vs 15). On price, ads, in-app purchases and device support 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.
PowerMeter ships an update every 2 months, LED System weekly. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.
| Parameter | PowerMeter | LED System |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15 |
| Further details — not scored | ||
| Size | 1 MB | 64 MB |
| Age rating | 4+ | 17+ |
| Developer | Chicony power Technology Co.,Ltd. | 深圳市流明电子有限公司 |
In-app purchases
PowerMeter
No in-app purchases
LED System
No in-app purchases









