RELAY 릴레이 vs ChatCar 챗카 OBD2 차량진단
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RELAY 릴레이
Easily share video links from popular platforms like Instagram, YouTube, and TikTok directly to messaging apps. It automatically generates previews and offers a secure way to share without revealing personal information. Discover new content through friend recommendations.
- Supports Instagram, YouTube, Twitter, TikTok links
- One-tap sharing to KakaoTalk, Line, Telegram
- Automatic preview generation
- Friend recommendation feature
- Secure link handling for privacy
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[주요 기능] • 인스타그램, 유튜브, 트위터, 틱톡 등 다양한 영상 링크 지원 • 한 번의 탭으로 카톡·라인·텔레그램에 바로 공유 • 미리보기 자동 생성 • 친구 추천 기능 • 안전한 링크 처리 (개인정보 비공개) 영상을 공유할 때마다 여러 단계를 거치셨나요? RELAY 한 번만 누르면 끝납니다.
ChatCar 챗카 OBD2 차량진단
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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
Verdict
The clearest difference is ads: ChatCar 챗카 OBD2 차량진단 at none against RELAY 릴레이's shown. ChatCar 챗카 OBD2 차량진단 also leads on device support (3 vs 1). RELAY 릴레이's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases and iOS requirement 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.
RELAY 릴레이 ships an update every 2 days, ChatCar 챗카 OBD2 차량진단 every 2 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.
| Parameter | RELAY 릴레이 | ChatCar 챗카 OBD2 차량진단 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Tae Su Yi | Youngwin Co., Ltd |
In-app purchases
RELAY 릴레이
No in-app purchases
ChatCar 챗카 OBD2 차량진단
No in-app purchases









