KL500A vs Pickpicer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KL500A
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KL500 A系列电压电流表是一款能测量电压、电流、功率、充放电容量、瓦时、时间等多种物理参数的新型库仑计， 同时也可以设定参数实现过压保护、欠压保护、过流保护、过功率保护、过温保护及限时保护等多种保护功能。 该仪表能够自动识别电流的方向，并且对电池容量可以进行实时监控且采用彩色液晶显示被测数据，显示信息全面、人性化。 KL500A系列电压电流表在原有功能基础上加入电压电流曲线显示及导出的功能，同时可以使用手机 APP控制显示，也可以实时对固件进行更新升
Pickpicer
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With the "Pickpicer" App, you can easily synchronize your favorite photos, QR codes, texts and other content to the ink screen of the phone case for display. The App has built-in a variety of theme wallpapers, covering popular pictures, illustrations, animals, Chinese style, portraits, cities, cute scenery, couples and other styles for you to choose from. In addition, you can also select photos from the mobile phone album to synchronize to the ink screen of the phone case for display.
Screenshots
Verdict
The clearest difference is update cadence: Pickpicer at weekly against KL500A's every 4 weeks. KL500A's advantage is iOS requirement (11.0 vs 13.0). 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.
KL500A ships an update every 4 weeks, Pickpicer weekly. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | KL500A | Pickpicer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 31 MB | 45 MB |
| Age rating | 17+ | 17+ |
| Developer | 磊磊 周 | Shenzhen Boshan Intelligent Electronics Co., Ltd |
In-app purchases
KL500A
No in-app purchases
Pickpicer
No in-app purchases
