GO2 Alarm vs KL500A
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GO2 Alarm
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Another breakthrough from award-winning Chuango Security Technology Corporation, the GO2 embodies modern industrial design in a user-friendly, wire-free home security package. The sleek-looking Chuango GO2 is GSM-based (requires a SIM card) and suitable for any DIY home improvement project, ensuring you and your family have that extra peace of mind without monthly monitoring fees. The GO2 App is totally free. Once paired to your GO2 panel, you can easily manage and interact with the entire system – such as arm, disarm, set exit/entry delays, add/remove/rename accessories, play user-definable onsite recordings and engage in two-way audio – directly on your smartphone anywhere, anytime. What Chuango GO2 can do for your home or small shop/SOHO: You can add up to 50 wireless sensors and accessories based on your needs. Chuango sensors and accessories allow for intrusion, flood, smoke and gas detection. You can set exit and entry delays as you wish, so you and your family can go out and come back home at your own pace, without having to fumble around in your pocket for your mobile phone or remote control, to arm or disarm your Chuango GO2. Pre-set routines can be entered so that your GO2 will automatically guard your small shop or welcome you home right on the dot. Specific delays for specific zones are also possible. Siren duration and volume can be adjusted per your need, with the maximum volume at 95 decibels. Multiple users and smartphones can be enabled to control and interact with one single GO2 system once paired. You can take turns watching over your property and loved ones back home.
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
Screenshots
Verdict
The clearest difference is update cadence: KL500A at every 4 weeks against GO2 Alarm's every 2 months. GO2 Alarm's advantage is iOS requirement (7.0 vs 11.0). 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.
GO2 Alarm ships an update every 2 months, KL500A every 4 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | GO2 Alarm | KL500A |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 79 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | Chuango Security Technology Corporation | 磊磊 周 |
In-app purchases
GO2 Alarm
No in-app purchases
KL500A
No in-app purchases









