AUKEY Fit Pro vs Kstyle OS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AUKEY Fit Pro
This app syncs your smartwatch data, including steps, heart rate, and sleep, with an intuitive new interface. It also allows you to receive phone notifications on your watch and configure various watch settings like alarms and weather updates.
- Sync steps, calories, mileage, heart rate, and sleep
- Display exercise records intuitively
- Push incoming calls and SMS to watch
- Configure sedentary alerts and alarms
- Sync weather and AGPS files
- Integrates with iPhone Health
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AUKEY Fit Pro is a newly designed and developed application which is only work for our new line of smart watches. Main features: Sync your steps,calories,mileage,heart rate,sleep and your exercise records recorded by your watch. The newly designed UI can display the data more intuitively. After you bind and authorize,we will push your phone’s incoming call and SMS to your watch to avoid you missing information. You can use the app to configure your watch’s sedentary alert,alarm clocks,schedules,backlight as well as sync weather and AGPS files(assisting the watch itself to locate) and other features, so you can use your watch better. In the course of your use, if you have any questions, you can always ask, we will listen to your suggestions and make improvements. Disclaimer: 1. The data displayed by the app is provided by the device, and the app only records and shares 2. All the health data displayed in the app are not suitable for medical purposes. All health data is for reference only. These data should not be used to replace the opinions of health care professionals For accurate data, please consult your doctor. License description 1. We will access iPhone Health and synchronize device data to iPhone Health in real time 2. We will access the mobile phone location to get local weather information and synchronize it to the device display
Kstyle OS
This companion app syncs with a smartwatch to display incoming calls and messages, allowing quick replies. It also tracks fitness data like steps and distance, and manages watch alarms and reminders for general health monitoring.
- Incoming call and SMS/MMS notifications
- Quick SMS replies for rejected calls
- Step count, frequency, and distance tracking
- Fitness data visualization (line/bar charts)
- Smartwatch alarm and reminder settings
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The Kstyle OS APP is a companion application of the "Kieslect" smartwatch, with the following functions: One of the main functions of the APP is to push incoming calls and SMS/MMS received by the phone to the associated smartwatch, so that you can answer and view SMS/MMS on the watch end; When the watch terminal rejects a call, it can quickly reply, and the APP will send a pre configured SMS to the caller. It should be noted that the application will request "SMS and call record permissions" to implement these functions, and without these permissions, the application will not be able to use them. 2. Record the step data collected by the smartwatch, including step count, step frequency, and distance, and display them in the form of line charts and bar charts; 3. Set reminders and alarms for your smartwatch. 4. Not for medical use, only for general fitness/health purposes Disclaimer: This application aims to assist users in managing and monitoring health data, supporting a healthy lifestyle. However, this application is for general health reference only and cannot replace professional medical advice. Before using this application or making any medical decisions, please be sure to consult a professional doctor. We do not assume responsibility for any health issues arising from reliance on the information provided by this application.
Screenshots
Verdict
AUKEY Fit Pro and Kstyle OS both sit at 3.3 stars, but that hides the real split: 31% of Kstyle OS's written reviews are positive against 0% of AUKEY Fit Pro's. Kstyle OS also leads on update cadence (every 3 days vs every 3 months). AUKEY Fit Pro's advantage is iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 3.3 for AUKEY Fit Pro against 3.4 for Kstyle OS. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews are what separate them: 0% of AUKEY Fit Pro's written reviews are positive against 31% of Kstyle OS's.
AUKEY Fit Pro ships an update every 3 months, Kstyle OS every 3 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | AUKEY Fit Pro | Kstyle OS |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (11 ratings) | 3.4 (17 ratings) — better |
| Positive reviews | 0.0% of reviews | 31.3% of reviews — better |
| Number of ratings | 11 | 17 — better |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 566 MB | 252 MB |
| Age rating | 4+ | 4+ |
| Developer | Aukey Business Co.,Ltd. | 上海凯斯领拓技术有限公司 |
Customer experience
AUKEY Fit Pro
Kstyle OS
In-app purchases
AUKEY Fit Pro
No in-app purchases
Kstyle OS
No in-app purchases








