KL500A vs PRIMES SpotLight
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
PRIMES SpotLight
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Flexible laser power measurement with PRIMES PRIMES SpotLight App together with PRIMES power meter Cube+ enables you to perform fast and reliable laser power measurements. Ideal for production environments, service operations and quality control. The new SpotLight App brings powerful measurement visualization and analysis to your fingertips. Connect your Cube+ via Bluetooth® and monitor your data in real time on your smartphone or tablet. Key parameters such as laser power, pulse duration, and energy per pulse are displayed in clear, dynamic graphs. Each measurement is automatically recorded with precise timestamps, ensuring full traceability and easy data review. Generate measurement reports on your phone or transfer data to a computer for in-depth analysis using PRIMES LaserDiagnosticsSoftware LDS. Integrated statistical tools, including standard deviation analysis, provide instant insights. PRIMES stands for precise laser metrology, which is specifically designed for industrial applications. The Cube series with the SpotLight App combines measuring accuracy with practical applicability – for users who need to rely on their measurement results.
Screenshots
Verdict
The clearest difference is update cadence: PRIMES SpotLight at daily against KL500A's every 4 weeks. KL500A's advantage is iOS requirement (11.0 vs 15.0). 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, PRIMES SpotLight daily. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | KL500A | PRIMES SpotLight |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 31 MB | 100 MB |
| Age rating | 17+ | 4+ |
| Developer | 磊磊 周 | Primes GmbH |
In-app purchases
KL500A
No in-app purchases
PRIMES SpotLight
No in-app purchases









