# OBD2 Cat vs EMDR Timer

OBD2 Cat and EMDR Timer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

OBD2 Cat ships an update every 3 weeks, EMDR Timer every 5 weeks. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OBD2 Cat | EMDR Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obd2-cat-car-scanner/id6751106245/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 14 MB | 1 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Tikhonychev](https://appshunter.io/developer/1833446011) | [Jeremy Blanchard](https://appshunter.io/developer/1823313275) |

## What reviewers say

### OBD2 Cat

[App page](https://appshunter.io/ios/app/obd2-cat-car-scanner/id6751106245)

This app reads diagnostic trouble codes and live vehicle data from compatible cars using a Bluetooth OBD2 adapter. It helps drivers understand dashboard warnings by checking engine codes, viewing sensor data, and retrieving vehicle identification information.

**Highlights:** Read diagnostic trouble codes (DTCs), Clear supported trouble codes, View live engine and sensor data, Check VIN, make, model, and year, Auto Scan for codes, View OBD protocol and connection status

**In-app purchases:** none


### EMDR Timer

[App page](https://appshunter.io/ios/app/emdr-timer/id6752506251)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Cat free?

OBD2 Cat is free to download, with no in-app purchases.

### Is EMDR Timer free?

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

### Do OBD2 Cat or EMDR Timer have ads?

Neither OBD2 Cat nor EMDR Timer shows ads.

### Which is updated more often, OBD2 Cat or EMDR Timer?

OBD2 Cat ships an update every 3 weeks, and EMDR Timer every 5 weeks. Most recently, OBD2 Cat was updated on October 10, 2026 and EMDR Timer on October 17, 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.*