# OBD2 Scanner vs DND HD+

The clearest difference is in-app purchases: DND HD+ at none against OBD2 Scanner's 6. DND HD+ also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. OBD2 Scanner sells 6 in-app purchases, starting at $6.99 per 7 days. DND HD+ asks for nothing beyond the download.

OBD2 Scanner ships an update monthly, DND HD+ every 2 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OBD2 Scanner | DND HD+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/obd2-scanner-torque-elm-327/id6477899127/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 22.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 102 MB | 17 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phong Pham](https://appshunter.io/developer/1731047500) | [MATL TECH INC.](https://appshunter.io/developer/1735263917) |

## What reviewers say

### OBD2 Scanner

[App page](https://appshunter.io/ios/app/obd2-scanner-torque-elm-327/id6477899127)

Transform your smartphone into a powerful car diagnostic tool. Monitor real-time engine data, read and clear trouble codes, and track your vehicle's performance. Customize your dashboard and access repair manuals to understand and fix issues.

**Highlights:** Real-time engine data monitoring, Read and clear trouble codes, Performance tracking, Customizable dashboards, Repair manual database, Compatibility with OBD2 ELM327 adapters

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium weeky freetrial | $6.99 | per 7 days |
| Premium Weekly | $7.99 | per 7 days |
| Premium Monthly | $14.99 | per month |
| Premium Monthly | $17.99 | per month |
| Premium Yearly | $59.99 | per year |
| Lifetime Premium | $69.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use setup
- ✅ Works well for some vehicle models
- ⭐ Useful for basic OBD2 scanning

**What reviewers complain about**

- 💰 Expensive pricing for limited functionality
- 🐛 Bluetooth connection drops frequently
- ❌ Poor compatibility with many vehicle models
- 📱 Deceptive UI with hidden exit menus
- 🔒 Security concerns and unauthorized charges

**Reported bugs**

- Bluetooth connection drops and requires reboot
- App fails to connect to OBD2 devices
- Sensors display N/A values in paid version
- Cannot select vehicle profile
- App crashes or becomes unresponsive

**Requested features**

- Oil temperature and transmission data
- Wheel sensor information
- Pending DTC display
- Permanent check engine light clearing
- Module-specific scanning selection


### DND HD+

[App page](https://appshunter.io/ios/app/dnd-hd-plus/id6480089734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Scanner free?

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

### Is DND HD+ free?

DND HD+ is free to download, with no in-app purchases.

### Do OBD2 Scanner or DND HD+ have ads?

OBD2 Scanner shows ads; DND HD+ does not.

### Which is updated more often, OBD2 Scanner or DND HD+?

OBD2 Scanner ships an update monthly, and DND HD+ every 2 months. Most recently, OBD2 Scanner was updated on October 25, 2026 and DND HD+ on October 12, 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.*