Comparison

UstaScan vs ChatCar 챗카 OBD2 차량진단

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

Head to head
About

UstaScan

This app uses AI to diagnose your car's issues by connecting to its OBD2 port via Bluetooth. It provides real-time data, reads and clears fault codes, and offers performance testing. Monitor your vehicle's health with live charts and detailed sensor information.

Highlights
  • AI-powered car diagnostics
  • Real-time data monitoring
  • Read and clear fault codes
  • Performance testing (acceleration, braking)
  • Live charts and sensor data
Features
Read full description

UstaScan is a powerful OBD2 car diagnostic app that connects to your vehicle via Bluetooth. Monitor real-time data including speed, RPM, engine temperature, and battery voltage. Read and clear fault codes (DTCs), run AI-powered diagnostics, and test your car's performance with acceleration and braking tests. Stay on top of your vehicle's health with live charts and detailed sensor data.

About

ChatCar 챗카 OBD2 차량진단

Features
Read full description

ChatCar is an AI-powered vehicle diagnostics and management platform built on OBD2 data. Check your car's condition and manage diagnostic trouble codes (DTCs), the check engine light, battery voltage, coolant temperature, driving data, maintenance history, and car expenses all in one place. Connect an OBD2-compatible adapter such as an ELM327 to view your vehicle's sensor data and get easy-to-understand vehicle reports. KEY FEATURES ■ AI Vehicle Health Diagnosis · Overall vehicle health score · Analysis of possible causes of problems · Plain-language explanations of trouble codes (DTCs) · Guidance on whether the vehicle is safe to drive · AI vehicle health report ■ Real-Time OBD Data · Engine RPM · Coolant temperature · Battery voltage · Fuel status · Vehicle speed · Various sensor readings ■ Maintenance History · Engine oil changes · Parts replacement history · Vehicle inspection history · Maintenance cost tracking ■ Receipt-Scanning Car Log Take a photo of a receipt and AI reads it for you, automatically recognizing · Repair and service receipts · Fuel receipts · Car wash receipts and saving them to your vehicle history. Depending on photo conditions and receipt quality, some results may need minor corrections. ■ Cost Analysis · Monthly ownership costs · Fuel cost analysis · Maintenance cost analysis · Vehicle expense statistics ■ Preventive Maintenance · Battery replacement timing · Spark plug inspection timing · Estimated parts replacement · Alerts for warning signs ■ Please Note · Real-time data and AI diagnostics require an OBD2 adapter connected to your vehicle. · Available data may vary by vehicle make, model, and year. · AI analysis is for reference only and does not replace an inspection by a qualified mechanic. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://yw-proj.github.io/chatcar-legal/terms-en Privacy Policy: https://yw-proj.github.io/chatcar-legal/privacy-en

Screenshots

UstaScan4 screens
ChatCar 챗카 OBD2 차량진단4 screens

Verdict

The call

The clearest difference is update cadence: UstaScan at every 2 days against ChatCar 챗카 OBD2 차량진단's every 2 weeks. UstaScan also leads on iOS requirement (12.0 vs 15.0). 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

UstaScan ships an update every 2 days, ChatCar 챗카 OBD2 차량진단 every 2 weeks. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
UstaScan versus ChatCar 챗카 OBD2 차량진단: the parameters behind the verdict, then further details
ParameterUstaScanChatCar 챗카 OBD2 차량진단
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size35 MB28 MB
Age rating4+4+
DeveloperMustafa YousifYoungwin Co., Ltd

In-app purchases

None

UstaScan

No in-app purchases

None

ChatCar 챗카 OBD2 차량진단

No in-app purchases

Questions

Is UstaScan free?
UstaScan is free to download, with no in-app purchases.
Is ChatCar 챗카 OBD2 차량진단 free?
ChatCar 챗카 OBD2 차량진단 is free to download, with no in-app purchases.
Do UstaScan or ChatCar 챗카 OBD2 차량진단 have ads?
Neither UstaScan nor ChatCar 챗카 OBD2 차량진단 shows ads.
Which is updated more often, UstaScan or ChatCar 챗카 OBD2 차량진단?
UstaScan ships an update every 2 days, and ChatCar 챗카 OBD2 차량진단 every 2 weeks. Most recently, UstaScan was updated on October 31, 2026 and ChatCar 챗카 OBD2 차량진단 on October 31, 2026.

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