HAYLOU vs SZOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HAYLOU
Track your daily steps, calories burned, and exercise duration with detailed analysis. Monitor your sleep patterns, set fitness goals, and receive intelligent reminders. Manage your TWS headset settings and enjoy a healthier lifestyle.
- Accurate exercise records
- Detailed sleep analysis
- Pedometer with calorie and distance tracking
- GPS route recording
- Sleep stage monitoring
- Goal setting
- Intelligent silent alarm
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HAYLOU provides you with accurate exercise records, detailed sleep and exercise analysis. Enjoy an active and healthy lifestyle, convenient use experience, more exciting waiting for you to experience. And a platform for you to manager your TWS headset, config the EQ effective [Pedometer] 1. Record the number of daily exercise steps and calculate the daily calories, distance and duration of exercise. 2. The detailed exercise period will tell you the amount of exercise in each exercise period. 3. Count your daily and monthly data, and historical data at a glance. [GPS] 1, GPS map positioning, record your movement route, and keep track of your movement at any time. 2. Voice broadcast, automatic announcement of each milestone in sports, better sports experience. [Sleep] 1. Record your daily sleep situation and inform you of your daily deep sleep, light sleep and awake data. 【aims】 1. You can set goals and encourage yourself to complete your daily exercise. 【remind】 1. Personalized intelligent silent alarm clock vibration reminder. 2. Diversified information push reminders. prompt: Please wear a bracelet to sleep, otherwise there will be inaccurate sleep data.
SZOS
This app syncs with a smart watch to track your daily activity, including steps, heart rate, and sleep patterns. It provides insights into your health and fitness metrics.
- Step tracking
- Heart rate monitoring
- Sleep analysis
- Syncs with smart watch
- Activity mode
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"SZOS APP设计为与SZOS智能手表配合使用， 它可以帮助您测量步数，心率，睡眠等" 【温馨提示】 用户开启运动模式后，手机切换至后台仍会持续定位，长时间使用GPS在后台运行可能显著减少电池寿命,影响续航时间。
Screenshots
Verdict
The clearest difference is ads: HAYLOU at none against SZOS's shown. HAYLOU also leads on update cadence (every 3 days vs every 3 weeks) and monetization model (free vs ad-supported). On price, rating, review sentiment and ratings volume 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 — 2.9 for HAYLOU against 2.8 for SZOS. Both are backed by a comparable volume of ratings — 74 and 105 respectively. Written reviews are what separate them: 11% of HAYLOU's written reviews are positive against 5% of SZOS's.
HAYLOU ships an update every 3 days, SZOS every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | HAYLOU | SZOS |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (74 ratings) — better | 2.8 (105 ratings) |
| Positive reviews | 11.0% of reviews — better | 5.3% of reviews |
| Number of ratings | 74 | 105 — better |
| Update frequency | Every 3 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 80 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Dongguan Liesheng Electronic Co.,Ltd. | 晟 谷 |
Customer experience
HAYLOU
SZOS
User reviews
HAYLOU
From 74 App Store ratingsWhat we love
- 👍 Good sound quality
- ⏱️ Long battery life
- 🎯 Accurate activity tracking
- 💪 Comfortable fit
- 📊 Quality reports available
Room to improve
- 🐛 Frequent app crashes
- 🔌 Poor connectivity issues
- ❌ Registration/verification code failures
- ⚠️ Data synchronization problems
- 🌐 Abandoned/outdated app
SZOS
From 105 App Store ratingsWhat we love
- 👍 Watch looks good
- 👍 Watch features were great
Room to improve
- 🐛 App not working
- 🐛 App crashes
- 🐛 App freezes
- 🐛 White screen of death
- 🐛 App doesn't open
Bugs and requests
HAYLOU
Reported bugs
18 issues- Verification code not being sent
- Registration fails with error messages
- App crashes on startup
- App crashes when accessing heart rate settings
- Device not detected/recognized
Show 13 moreShow fewer
- Watch disconnects frequently
- Data not syncing in real-time
- Activity data not saving
- Incorrect day display with no setting to change
- Weather showing inverted temperature values
- Equalizer buttons not clickable
- Alarms not saving
- Notifications not arriving on watch
- Captcha error during password setup
- Touch screen unresponsive with sweat
- App freezes during configuration
- Connection timeout errors
- Internet connection errors despite being connected
Requested features
15 requests- Add more watch faces
- Custom watch face support
- Weather synchronization settings
- Celsius/Fahrenheit toggle
- Russian language support
Show 10 moreShow fewer
- Third-party app integration (Strava, Runkeeper, Training Peaks)
- Health app integration
- Telegram notifications
- WhatsApp notifications
- Gmail notifications
- More alarm options (more than 3)
- Sleep mode configuration
- Voice control settings
- Notification customization
- Simplified activity start process
SZOS
Reported bugs
112 issues- App needs update and fix
- App has white screen of death
- App hasn't been updated in a year
- App will not open
- App no longer functions or is supported
Show 107 moreShow fewer
- Watch can't work without the app
- App stopped working
- App is not working
- App shows ads pop up
- App doesn't let me login
- App asks to download and only gets adds
- Scammer adds
- Cannot use the watch
- Trojan and virus download risk
- Application does not work
- Something wrong when entering application
- Only a blank page
- Please solve the problem
- It's not working at all
- About a month it's not working
- Is not good at all
- Worst app ever
- No cancel button
- App didn't work
- Fix the bug
- It doesn't work
- Screen is white and shows nothing
- New version of this app isn't working on IOS
- برنامج فاشل لا يعمل تسجيل دخول
- Down loads do not work
- Not determined yet
- Very poorly thought out app
- No long term recording of data
- No blood pressure records
- Needs a lot of work to improve it
- The weather does not work
- When asked to select a city on the app, it only lists counties
- Wondering if this is just a hack system
- Remote camera doesn’t work on the watch
- App allows to take pictures, however one is not able to use the watch as a remote in taking a photo
- Not able to download the music I would like to download onto the watch
- Nice to be able to use the watch as a Bluetooth speaker streaming music from my phone to the watch
- Please background add music on
- Cannot play or control music on this device
- Cannot make and receive phone calls
- Not what I was expecting to get when purchased with the description that was given
- Very limited functionality
- The weather does not work
- Cannot update profile with my own information
- Really a mess to surf this app
- Zero explanation
- No way to really have control on your phone to connect your watch
- WhatsApp, isn’t supported nor display on you watch
- Weather alternative didn’t register your location even add it manually
- Need a 100% better development
- I cant apen this app on my apple phone
- Please help me
- Update for temperature to include Fahrenheit and pounds instead of kg also cm to inches
- Got the watch yesterday after a 10 day wait
- Set it up everything works fine
- Really pleased
- Put the phone on charge this morning left it over an hour it was showing fully charged
- Tried to boot back up, but nothing
- So disappointed the watch looks good the features were great
- None of the buttons are functioning
- It’s showing just one word across the centre of the screen which I think is in Chinese but I’m not sure
- Bad news
- No funciona
- Luego de instalsrlo varias veces la aplicacion se bloquea al principio y no funciona
- No se puede utilizar
- App needs background app refresh option so find phone will work properly and so weather will stay updated, when app is minimzed
- App needs a Celsius/Fahrenheit selector for weather as well as imperial/metric selector for other data
- Also suggest a schedule to set up custom hours for the do not disturb option
- The only problem is the dial market is very hit and miss
- Watch face market never loads
- The two times it did couldn’t download watch faces
- Better without not even worth it
- I got this app to connect the watch
- The design and feel of this watch is great but there are a number of issues with the app
- So I’ll be deleting it as it’s unusable
- There is an issue with the dial store because It’s not launching at all
- There is also an issue with accounts because I’m unable to create and manage my own personal account
- There is also an issue with data security because there is none
- With no way to manage the security of the data stored on the app I will have to uninstall
- I can see someone has tried to raise their fault with the team but nothing seem to have been resolved
- App is crap!!
- I was given a watch that goes with this app, ut the app freezes up on everything
- Can’t load anything from the app
- Worthless!!!!!
- Q R code
- It is saying that the Q R code is invalid
- Dial Market freezes the app!
- I have successfully set up and using my new smart watch which is working well, but when I use the app to customise my dial face the ‘Dial Market’ (spinning wheel of death) section of the app continually searches and ends up freezing the app and the app needs to be reset to work again
- Having to only use the default dials that come inbuilt with the watch and not able to use the Dial Market at all to customise the face which is a shame
- The rating is for the app, not the watch !
- The app is very difficult to use on a IPhone
- Every time I try to open the app it locks up
- When it does work nothing is in Fahrenheit or feet and inches
- Unable to set up the time?
- I have difficulties setting regular time even when the watch is connected to my iPhone???
- Appalling
- Cannot register
- App won’t download face dials
- Watch stuck in transmission mode (I only know this using Google translation of a Chinese message on the screen)
- Totally useless watch and totally useless app now
- No way to troubleshoot or log a complaint
- Avoid!
- App not working
- I have downloaded this app to connect to my watch but I am unable to this as the app is requesting me tk create and account but the button does not work
- Please can you fix this ASAP
- Some functions don’t sync
- I have the AW12 smart watch and can’t get the heart rate data to transfer to the app or the heart rate to track daily which is what it looks like it should do hopefully this will be fixed soon
Requested features
11 requests- Update and fix the app
- App needs background app refresh
- Find phone feature
- Weather stay updated
- Celsius/Fahrenheit selector
Show 6 moreShow fewer
- Imperial/metric selector
- Schedule custom hours for do not disturb
- Background add music on
- Update for temperature
- Include pounds instead of kg
- Include cm to inches
In-app purchases
HAYLOU
No in-app purchases
SZOS
No in-app purchases
