# Carista OBD2 vs ANCEL Echo

The clearest difference is rating: Carista OBD2 at 4.6 against ANCEL Echo's 3.3. Carista OBD2 also leads on ratings volume (4.2K vs 6) and chart position (#154 vs unranked). ANCEL Echo's advantage is in-app purchases (none vs 14) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Carista OBD2 sells 6 in-app purchases, starting at $19.99 per month. ANCEL Echo asks for nothing beyond the download.

Carista OBD2 holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Carista OBD2 has 4.2K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 34% of Carista OBD2's written reviews are positive against 25% of ANCEL Echo's.

Carista OBD2 ships an update every 3 weeks, ANCEL Echo every 10 days. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Carista OBD2 | ANCEL Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.2K ratings)](https://appshunter.io/ios/app/carista-obd2/id954363569/reviews)** | [3.3 (6 ratings)](https://appshunter.io/ios/app/ancel-echo/id6504076958/reviews) |
| Number of ratings | **4.2K** | 6 |
| Positive reviews | **34.2% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#154** | — |
| Size | 142 MB | 337 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Prizmos](https://appshunter.io/developer/954363568) | [OBDSPACE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1434956144) |

## What reviewers say

### Carista OBD2

[App page](https://appshunter.io/ios/app/carista-obd2/id954363569)

**Currently charting:** #154 Top Grossing · Utilities (US App Store)

This app acts as a DIY car mechanic, allowing you to customize features, diagnose warning lights, monitor live data, and perform maintenance. Save time and money by handling common car tasks yourself.

**Highlights:** Customize car behavior and unlock hidden features, Diagnose and reset dashboard warning lights, Monitor real-time vehicle parameters, Perform simple DIY car maintenance procedures, Access advanced electronic diagnostics

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $19.99 | per month |
| Pro | $19.99 | per month |
| 1 month Pro | $19.99 | per month |
| 3 month Pro | $29.99 | per 3 months |
| Pro | $59.99 | per year |
| One-Time Diagnostic & Reset | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Customization options
- 🚀 Efficient diagnostics
- 💡 Helpful for maintenance
- 👍 Great customer support

**What reviewers complain about**

- 💰 Expensive subscription
- 🔒 Requires account login
- 🐛 Connectivity issues
- 🔒 Locked features behind paywall
- 🐛 Unreliable functionality

**Reported bugs**

- App crashes and freezes
- Subscription issues and billing problems
- Incompatibility with certain OBD2 adapters
- Customization features not working as expected
- Inaccurate fault code detection

**Requested features**

- Support for more vehicle makes and models
- Offline diagnostics and customization
- Ability to save customization settings
- More detailed error code information
- Improved user interface and navigation


### ANCEL Echo

[App page](https://appshunter.io/ios/app/ancel-echo/id6504076958)

This app offers professional vehicle diagnostics, allowing users to check their car's health, identify malfunctions, and receive maintenance guidance. It provides real-time sensor data and AI services to help users understand and care for their vehicles, saving time and money on repairs.

**Highlights:** OBD functionality, Enhanced diagnosis, Vehicle maintenance guidance, Locate malfunction causes, Real-time sensor data monitoring, AI services, Abnormal warnings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Carista OBD2 free?

Carista OBD2 is free to download, with in-app purchases available.

### Is ANCEL Echo free?

ANCEL Echo is free to download, with no in-app purchases.

### Which has better reviews, Carista OBD2 or ANCEL Echo?

Carista OBD2 is rated higher. Carista OBD2 averages 4.6 out of 5 from 4.2K ratings, while ANCEL Echo averages 3.3 from 6 ratings.

### Do Carista OBD2 or ANCEL Echo have ads?

Carista OBD2 shows ads; ANCEL Echo does not.

### Which is updated more often, Carista OBD2 or ANCEL Echo?

Carista OBD2 ships an update every 3 weeks, and ANCEL Echo every 10 days. Most recently, Carista OBD2 was updated on October 26, 2026 and ANCEL Echo on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*