# Carista OBD2 vs FIXD OBD2 Scanner

The clearest difference is ads: FIXD OBD2 Scanner at none against Carista OBD2's shown. FIXD OBD2 Scanner also leads on review sentiment (60% vs 34%) and update cadence (every 5 days vs every 3 weeks). Carista OBD2's advantage is iOS requirement (16.4 vs 18.0). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Carista OBD2 sells 6 in-app purchases, starting at $19.99 per month and FIXD OBD2 Scanner sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Carista OBD2 against 4.6 for FIXD OBD2 Scanner. That said, the two scores are not equally well evidenced: FIXD OBD2 Scanner has 26K ratings behind it against 4.3K, so its average is the more settled of the two. Written reviews are what separate them: 34% of Carista OBD2's written reviews are positive against 60% of FIXD OBD2 Scanner's.

Carista OBD2 ships an update every 3 weeks, FIXD OBD2 Scanner every 5 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Carista OBD2 | FIXD OBD2 Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (4.3K ratings)](https://appshunter.io/ios/app/carista-obd2/id954363569/reviews) | **[4.6 (26K ratings)](https://appshunter.io/ios/app/fixd-obd2-scanner/id957168651/reviews)** |
| Number of ratings | 4.3K | **26K** |
| Positive reviews | 34.2% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #160 | **#40** |
| Size | 142 MB | 58 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prizmos](https://appshunter.io/developer/954363568) | [FIXD Automotive Inc](https://appshunter.io/developer/957168650) |

## What reviewers say

### Carista OBD2

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

**Currently charting:** #160 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


### FIXD OBD2 Scanner

[App page](https://appshunter.io/ios/app/fixd-obd2-scanner/id957168651)

**Currently charting:** #40 Top Grossing · Utilities (US App Store)

This app translates your car's diagnostic trouble codes into plain language, helping you understand potential issues and their severity. It provides maintenance reminders and offers advanced features like issue forecasting and emissions pre-checks with a premium subscription.

**Highlights:** Translate check engine light codes, Understand issue severity, Maintenance reminders, Issue forecasting, Emissions pre-check, Mechanic hotline access

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly FIXD Premium | $7.99 | per 7 days |
| Monthly FIXD Premium | $12.99 | per month |
| Yearly FIXD Premium | $99.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quickly identifies problems
- 💰 Saves money on mechanics
- 🔍 Provides detailed diagnostic information
- ⚙️ Helpful for DIY maintenance

**What reviewers complain about**

- 🔒 Requires subscription for full functionality
- 💰 Expensive premium subscription
- 🤖 Inconsistent performance across vehicles
- 🔌 Connectivity issues with device
- 🤷‍♀️ Limited functionality without subscription

**Reported bugs**

- Fails to detect certain error codes
- Inconsistent Bluetooth pairing
- Subscription charges without user consent
- Inability to cancel subscription through app

**Requested features**

- Ability to manually input maintenance records
- Clearer indication of subscription requirements
- Support for more vehicle makes and models
- Improved diagnostic capabilities for advanced issues
- Option to disable subscription upsells


## Frequently asked questions

### Is Carista OBD2 free?

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

### Is FIXD OBD2 Scanner free?

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

### Which has better reviews, Carista OBD2 or FIXD OBD2 Scanner?

FIXD OBD2 Scanner is rated higher. Carista OBD2 averages 4.6 out of 5 from 4.3K ratings, while FIXD OBD2 Scanner averages 4.6 from 26K ratings.

### Do Carista OBD2 or FIXD OBD2 Scanner have ads?

Carista OBD2 shows ads; FIXD OBD2 Scanner does not.

### Which is updated more often, Carista OBD2 or FIXD OBD2 Scanner?

Carista OBD2 ships an update every 3 weeks, and FIXD OBD2 Scanner every 5 days. Most recently, Carista OBD2 was updated on October 29, 2026 and FIXD OBD2 Scanner on October 30, 2026.

### Which is more popular, Carista OBD2 or FIXD OBD2 Scanner?

Carista OBD2 currently peaks at #160 in the App Store charts, and FIXD OBD2 Scanner at #40. Chart position reflects recent download velocity rather than total install base.

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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.*