Comparison

Yefit vs FourScan

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

Head to head
About

Yefit

Monitor your smart wearable devices in real-time, tracking exercise, personal health data, and movement. Set health goals, receive personalized guidance, and control device functions like music and weather. Integrates with HealthKit for a comprehensive health profile.

Highlights
  • Real-time data monitoring
  • Personalized health management
  • Intelligent exercise guidance
  • Device control (music, weather)
  • Sleep monitoring
  • HealthKit integration
Read full description

1、 Real time data monitoring Yefit App can connect and monitor your smart wearable devices in real time, collect and display your exercise data and personal sign data. Whether you are running or working out, the app can track your movement trajectory, steps, distance, calorie consumption, and other key indicators in real time, and synchronously display your health data such as heart rate, blood pressure, and blood oxygen. 2、 The personalized health management app provides personalized health management functions, allowing you to comprehensively understand your health status. You can set health goals such as daily steps, calorie consumption, etc., and track and record them through the app. 3、 The intelligent exercise guidance app not only records your exercise data, but also provides personalized exercise guidance based on your exercise habits and physical condition, helping you achieve your exercise goals more effectively and improve exercise effectiveness. 4、 Intelligent device control It has other practical functions, such as music control, weather forecast, sleep monitoring, etc. These features can bring more convenience and fun to your sports and life. 【HealthKit Integration】 By integrating with HealthKit, your exercise data - including steps and calories - will be securely obtained, aiming to present you with a more comprehensive exercise profile. We promise that all data processing strictly complies with Apple's privacy policy to ensure the security of your information.

About

FourScan

Features
Read full description

Protect your privacy with 4 scanning technologies. Worried about hidden cameras or listening devices in hotels, Airbnbs, or rental spaces? FourScan runs 4 detection scans sequentially with a single tap. [4 Detection Powers] 1. Magnetic Scan - Detects magnetic field anomalies from electronic devices 2. Infrared Scan - Uses front camera to detect IR LEDs from night vision cameras 3. Wi-Fi Scan - Discovers suspicious devices on the local network 4. Bluetooth Scan - Searches and analyzes nearby BLE devices Note: Basic checking tool, not a substitute for professional investigation.

Screenshots

Yefit3 screens
FourScan3 screens

Verdict

The call

The clearest difference is update cadence: FourScan at every 5 days against Yefit's every 3 weeks. Yefit's advantage is iOS requirement (13.0 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Yefit ships an update every 3 weeks, FourScan every 5 days. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 7 level
Yefit versus FourScan: the parameters behind the verdict, then further details
ParameterYefitFourScan
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size141 MB3 MB
Age rating17+4+
DeveloperShenzhen TJD Information Technology Co. LTDsatoshi amasaki

In-app purchases

None

Yefit

No in-app purchases

None

FourScan

No in-app purchases

Questions

Is Yefit free?
Yefit is free to download, with no in-app purchases.
Is FourScan free?
FourScan is free to download, with no in-app purchases.
Do Yefit or FourScan have ads?
Neither Yefit nor FourScan shows ads.
Which is updated more often, Yefit or FourScan?
Yefit ships an update every 3 weeks, and FourScan every 5 days. Most recently, Yefit was updated on November 3, 2026 and FourScan on October 29, 2026.

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