# Carista OBD2 vs mFlasher

The clearest difference is review sentiment: mFlasher at 100% against Carista OBD2's 34%. mFlasher also leads on in-app purchases (none vs 14) and ads (none vs shown). Carista OBD2's advantage is ratings volume (4.3K vs 10) and iOS requirement (16.4 vs 18.6). On price, update cadence and device support there is nothing between them.

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

mFlasher holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Carista OBD2 has 4.3K ratings behind it against 10, 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 100% of mFlasher's.

Carista OBD2 ships an update every 3 weeks, mFlasher monthly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Carista OBD2 | mFlasher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (4.3K ratings)](https://appshunter.io/ios/app/carista-obd2/id954363569/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/mflasher/id1440570927/reviews)** |
| Number of ratings | **4.3K** | 10 |
| Positive reviews | 34.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 142 MB | 69 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prizmos](https://appshunter.io/developer/954363568) | [Mission Performance, LLC](https://appshunter.io/developer/1440570926) |

## What reviewers say

### Carista OBD2

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

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


### mFlasher

[App page](https://appshunter.io/ios/app/mflasher/id1440570927)

This app offers advanced engine and transmission tuning for enhanced performance and EV range. It provides a streamlined, intuitive ecosystem for optimizing drivability without compromising OEM reliability. Features include in-app purchase and activation for a seamless experience.

**Highlights:** Integrated engine and transmission tuning, Streamlined purchase and activation, Stage-free optimization, In-house custom tuning, OEM-chosen excellence, Globally recognized performance

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Carista OBD2 free?

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

### Is mFlasher free?

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

### Which has better reviews, Carista OBD2 or mFlasher?

mFlasher is rated higher. Carista OBD2 averages 4.6 out of 5 from 4.3K ratings, while mFlasher averages 5.0 from 10 ratings.

### Do Carista OBD2 or mFlasher have ads?

Carista OBD2 shows ads; mFlasher does not.

### Which is updated more often, Carista OBD2 or mFlasher?

Carista OBD2 ships an update every 3 weeks, and mFlasher monthly. Most recently, Carista OBD2 was updated on October 29, 2026 and mFlasher on October 25, 2026.

---

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