Comparison

AUKEY Fit Pro vs Kstyle OS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

AUKEY Fit Pro3 screens
Kstyle OS3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
AUKEY Fit Pro versus Kstyle OS: the parameters behind the verdict, then further details
ParameterAUKEY Fit ProKstyle OS
PriceFreeFree
Rating3.3 (11 ratings)3.4 (17 ratings) — better
Positive reviews0.0% of reviews31.3% of reviews — better
Number of ratings1117 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size566 MB252 MB
Age rating4+4+
DeveloperAukey Business Co.,Ltd.上海凯斯领拓技术有限公司

Customer experience

AUKEY Fit Pro

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Kstyle OS

All ratings17 ratings
Positive58.8%
Neutral5.9%
Negative35.3%
Written reviews16 reviews
Positive31.3%
Neutral0.0%
Negative68.8%

In-app purchases

None

AUKEY Fit Pro

No in-app purchases

None

Kstyle OS

No in-app purchases

Questions

Is AUKEY Fit Pro free?
AUKEY Fit Pro is free to download, with no in-app purchases.
Is Kstyle OS free?
Kstyle OS is free to download, with no in-app purchases.
Which has better reviews, AUKEY Fit Pro or Kstyle OS?
Kstyle OS is rated higher. AUKEY Fit Pro averages 3.3 out of 5 from 11 ratings, while Kstyle OS averages 3.4 from 17 ratings.
Do AUKEY Fit Pro or Kstyle OS have ads?
Neither AUKEY Fit Pro nor Kstyle OS shows ads.
Which is updated more often, AUKEY Fit Pro or Kstyle OS?
AUKEY Fit Pro ships an update every 3 months, and Kstyle OS every 3 days. Most recently, AUKEY Fit Pro was updated on November 3, 2026 and Kstyle OS on November 8, 2026.

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