XTSPA vs HKJ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
XTSPA
Read full descriptionHide full description
XTSPA is developed by AXENT, which is used for remote control of AXENT's cloud bathtub product APP. You can use XTSPA APP in the office bathtub and home bathtub for remote water drainage operation. Once you get home from work, you can take a comfortable bath! Reserve SPA in advance, your SPA is a step faster; customize the exclusive water temperature, your water temperature can be adjusted at will!
HKJ
Read full descriptionHide full description
慧科技的恒温恒湿恒氧系统，简称“三恒系统”，是一套颠覆传统对流理论的室内环境解决方案，并且集辐射供暖、辐射供冷、置换新风、除湿加湿过滤、室内环境监测、APP控制、远程后台监测于一身。以全年为一个整体，全面解决用户对居住环境的温度、湿度、含氧量、洁净度、低噪等方面的需求。
Screenshots
Verdict
XTSPA and HKJ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
XTSPA ships an update every 5 months, HKJ every 3 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.
| Parameter | XTSPA | HKJ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 30 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Xiamen Axent Corporation Limited | 慧科技有限公司 |
In-app purchases
XTSPA
No in-app purchases
HKJ
No in-app purchases
