# Dr.OBD vs INNOOBD+

The clearest difference is update cadence: INNOOBD+ at every 2 weeks against Dr.OBD's every 2 months. Dr.OBD's advantage is iOS requirement (11.0 vs 13). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dr.OBD ships an update every 2 months, INNOOBD+ every 2 weeks. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Dr.OBD | INNOOBD+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 3 MB | 135 MB |
| Requires iOS | **11.0** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) |

## What reviewers say

### Dr.OBD

[App page](https://appshunter.io/ios/app/drobd/id1225894625)

**In-app purchases:** none


### INNOOBD+

[App page](https://appshunter.io/ios/app/innoobd-plus/id6683303203)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dr.OBD free?

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

### Is INNOOBD+ free?

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

### Do Dr.OBD or INNOOBD+ have ads?

Neither Dr.OBD nor INNOOBD+ shows ads.

### Which is updated more often, Dr.OBD or INNOOBD+?

Dr.OBD ships an update every 2 months, and INNOOBD+ every 2 weeks. Most recently, Dr.OBD was updated on September 22, 2026 and INNOOBD+ on September 18, 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.*