# OBD Plus vs ActiveOBD

The clearest difference is in-app purchases: OBD Plus at none against ActiveOBD's 1. OBD Plus also leads on update cadence (every 4 weeks vs every 3 months) and iOS requirement (8.0 vs 13.0). ActiveOBD's advantage is review sentiment (45% vs 22%) and rating (3.6 vs 3.3). On price, ads and device support there is nothing between them.

Both are free to download. ActiveOBD sells 1 in-app purchase, starting at $4.99 per month. OBD Plus asks for nothing beyond the download.

ActiveOBD holds the better App Store score, 3.6 against 3.3. That said, the two scores are not equally well evidenced: ActiveOBD has 39 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 22% of OBD Plus's written reviews are positive against 45% of ActiveOBD's.

OBD Plus ships an update every 4 weeks, ActiveOBD every 3 months. The most recent releases landed on September 21, 2026 and July 23, 2026 respectively.

## The numbers

| Metric | OBD Plus | ActiveOBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (4 ratings)](https://appshunter.io/ios/app/obd-plus/id1208901144/reviews) | **[3.6 (39 ratings)](https://appshunter.io/ios/app/activeobd/id1524791245/reviews)** |
| Number of ratings | 4 | **39** |
| Positive reviews | 21.9% of reviews | **45.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | **Free** | Freemium |
| Size | 30 MB | 24 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Mykhailo Zolotarov](https://appshunter.io/developer/1524791247) |

## What reviewers say

### OBD Plus

[App page](https://appshunter.io/ios/app/obd-plus/id1208901144)

Monitor your vehicle's engine, emissions, and other critical systems. This app aids in diagnosing car issues and provides insights into various components for better car maintenance.

**Highlights:** Vehicle condition monitoring, Car diagnostics, Engine system monitoring, Emission control system analysis, Oxygen sensor monitoring, Fuel system analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### ActiveOBD

[App page](https://appshunter.io/ios/app/activeobd/id1524791245)

This app functions as an OBDII scanner, offering specialized support for Subaru vehicles (MY2012+). It provides basic parameter readings for free, with a subscription unlocking advanced features like trouble code reading and data logging.

**Highlights:** OBDII scanning, Subaru-specific support (MY2012+), CVT Oil Temperature reading, AWD duty (%) parameter reading, Trouble code reading (full version), Data logging (full version), Graphs building (full version)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version Subscription | $4.99 | per month |


## Frequently asked questions

### Is OBD Plus free?

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

### Is ActiveOBD free?

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

### Which has better reviews, OBD Plus or ActiveOBD?

ActiveOBD is rated higher. OBD Plus averages 3.3 out of 5 from 4 ratings, while ActiveOBD averages 3.6 from 39 ratings.

### Do OBD Plus or ActiveOBD have ads?

Neither OBD Plus nor ActiveOBD shows ads.

### Which is updated more often, OBD Plus or ActiveOBD?

OBD Plus ships an update every 4 weeks, and ActiveOBD every 3 months. Most recently, OBD Plus was updated on September 21, 2026 and ActiveOBD on July 23, 2026.

---

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