# OBDocker vs Rend Mais

The clearest difference is in-app purchases: Rend Mais at none against OBDocker's 7. OBDocker's advantage is ads (none vs shown) and update cadence (fortnightly vs monthly). On price and device support there is nothing between them.

Both are free to download. OBDocker sells 7 in-app purchases, starting at $2.99 per month. Rend Mais asks for nothing beyond the download.

OBDocker ships an update fortnightly, Rend Mais monthly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OBDocker | Rend Mais |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (17 ratings)](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 46.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Freemium | — |
| Size | 238 MB | 62 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Motorsure. Inc](https://appshunter.io/developer/1707281085) | [Cibus CashBack](https://appshunter.io/developer/1622811697) |

## What reviewers say

### OBDocker

[App page](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549)

This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.

**Highlights:** Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan), Triple-mode live data monitoring (Health, Engine, Dash), Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration), One-click car setting adjustments and retrofits, Supports a wide range of car brands and models

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD Pro (Monthly) | $2.99 | per month |
| OBD Pro Max (Monthly) | $7.99 | per month |
| OBD2 Pro (6 Months) | $14.99 | per 6 months |
| OBD Pro (Annual) | $17.99 | per year |
| Mechanic Access (Quarterly) | $19.99 | per 3 months |
| OBD Pro Max (Annual) | $47.99 | per year |
| OBD Pro Max (Permanent) | $119.99 | one-time |


### Rend Mais

[App page](https://appshunter.io/ios/app/rend-mais/id6781260330)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDocker free?

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

### Is Rend Mais free?

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

### Do OBDocker or Rend Mais have ads?

Rend Mais shows ads; OBDocker does not.

### Which is updated more often, OBDocker or Rend Mais?

OBDocker ships an update fortnightly, and Rend Mais monthly. Most recently, OBDocker was updated on October 15, 2026 and Rend Mais on October 10, 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.*