# OBD2 Car Scanner ELM327: Cavox — Check engine light? AI verdict

> AI-powered OBD2 scanner for car diagnostics and live data monitoring. (iPhone/iPad app by Larisa Kozlova.)

- Source: https://appshunter.io/ios/app/obd2-car-scanner-elm327-cavox/id6787960880 (this page in markdown: same URL + `.md`)
- Developer: [Larisa Kozlova](https://appshunter.io/developer/1895005449)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 32 MB
- Languages: American English, Russian
- Released: 2026-07-16
- Data updated: 2026-09-07
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/obd2-car-scanner-elm327-cavox/id6787960880/reviews.md

## What is OBD2 Car Scanner ELM327?

Your check-engine light just came on. Is it safe to keep driving — or should you stop? Cavox gives you a plain-language read in minutes, right in your car, without a $80–300 dealer visit.

Most code readers just show you "P0301" and leave you Googling. Cavox reads the fault, then hands you an AI-written verdict in human language — what it is, likely causes, what to check first, and how urgent it is — so you can make the call yourself.

WHAT YOU GET
• A plain-language verdict — "Looks OK to drive", "Worth a look", or "There's a problem" — never just a raw code.
• AI explanations — every trouble code decoded into what it means and what to do next.
• Live monitoring — real sensor readings (RPM, coolant temp, battery, engine load and more), with AI that flags anomalies even when there's no code but the car "feels off".
• Your car's history — every scan saved and searchable, so you can see what changed and when.
• A garage for several cars — each with its own history. Histories are never merged.
• Easy VIN — read it straight from the adapter or scan it from your documents. No typing, no typos.
• Demo mode — walk through the whole app on a sample car before you even own an adapter.

WORKS WITH YOUR ADAPTER
Cavox connects over Bluetooth to a standard OBD-II / ELM327 adapter — the common kind you may already own. No proprietary hardware, no locked ecosystem.

HONEST BY DESIGN
Cavox never fakes an "all clear". When a reading isn't certain, it tells you and points you to a mechanic instead of guessing. The core verdict is free; Premium unlocks full AI diagnosis, live monitoring and saved history.

Safety: always stop your vehicle before running diagnostics. Do not use while driving.

Cavox is a diagnostic aid, not a substitute for a professional inspection. It does not guarantee your vehicle is safe — always consult a qualified mechanic before making repair decisions.

Privacy Policy: https://cavox.app/privacy-policy
Terms of Use: https://cavox.app/terms-of-use

## Key features

- Plain-language verdict for trouble codes
- AI explanations of fault codes
- Live sensor monitoring (RPM, temp, etc.)
- Car diagnostic history tracking
- Support for multiple vehicles
- Demo mode for pre-purchase testing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Cavox Premium Monthly | $24.99 | per month |
| Cavox Premium Yearly | $99.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/obd2-car-scanner-elm327-cavox/id6787960880/reviews.md

### 5/5 — First app that actually works

*2026-08-06*

Paired on the first try and told me what P0171 actually meant for my car. That’s all I wanted. Used a cheap ELM327 from Amazon. No fighting with settings. Understandable for regular people.

## Frequently asked questions about OBD2 Car Scanner ELM327

### What is Cavox?

Cavox is an OBD2 car scanner app that uses AI to provide plain-language explanations for check engine lights and diagnostic trouble codes. It also offers live sensor monitoring and vehicle history tracking.

### How does Cavox work?

Cavox connects via Bluetooth to a standard OBD-II / ELM327 adapter. It reads fault codes, provides AI-driven verdicts on their meaning and urgency, and can monitor live sensor data.

### Is Cavox free to use?

The core verdict feature of Cavox is free. A Premium subscription is required to unlock full AI diagnosis, live monitoring, and saved history.

### What are the Cavox Premium subscription plans?

Cavox offers two premium subscription plans: Cavox Premium Monthly at $24.99 and Cavox Premium Yearly at $99.99.

### Does Cavox have ads?

No, Cavox does not contain advertisements. The app is free to use for basic diagnostics with an optional premium subscription for advanced features.

### What devices does Cavox support?

Based on the provided data, Cavox currently supports iPhone devices.

### How often is Cavox updated?

The latest version of Cavox is 1.3.1, last updated on August 7, 2026. This indicates a recent update frequency.

### Can I use Cavox while driving?

No, Cavox explicitly states that users should always stop their vehicle before running diagnostics and should not use the app while driving. It is a diagnostic aid, not a tool for use on the road.

## Version history (last 5 releases)

### 1.3.5 — 2026-08-27

Fuel type added to car profiles. Improves diagnosis accuracy.
Connection stability improvements.

### 1.3.4 — 2026-08-26

More reliable scanning and reconnection.

### 1.3.3 — 2026-08-13

- Better car protocol detection and VIN reading.
- Stability and diagnostics improvements.

### 1.3.1 — 2026-08-07

• More reliable adapter connection 
• More accurate live diagnostics 
• Stability fixes and general improvements

### 1.3.0 — 2026-08-04

• Smarter AI diagnosis for more accurate results
• Refreshed scan experience
• Bug fixes

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*