# Overtime Calculator plus vs Cortex OBD2 Diagnostic Scanner

The clearest difference is in-app purchases: Overtime Calculator plus at none against Cortex OBD2 Diagnostic Scanner's 3. Overtime Calculator plus also leads on iOS requirement (11.0 vs 16.0). Cortex OBD2 Diagnostic Scanner's advantage is update cadence (every 10 days vs every 17 months). On price, ads and device support there is nothing between them.

Both are free to download. Cortex OBD2 Diagnostic Scanner sells 3 in-app purchases, starting at $2.99 per 7 days. Overtime Calculator plus asks for nothing beyond the download.

Overtime Calculator plus ships an update every 17 months, Cortex OBD2 Diagnostic Scanner every 10 days. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Overtime Calculator plus | Cortex OBD2 Diagnostic Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 10 days** |
| Size | 31 MB | 37 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AMAR AWNI](https://appshunter.io/developer/1551109915) | [Ismail Imamoglu](https://appshunter.io/developer/1887634465) |

## What reviewers say

### Overtime Calculator plus

[App page](https://appshunter.io/ios/app/overtime-calculator-plus/id1615042862)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cortex OBD2 Diagnostic Scanner

[App page](https://appshunter.io/ios/app/cortex-obd2-diagnostic-scanner/id6764052240)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MotoCortex PRO Weekly | $2.99 | per 7 days |
| MotoCortex PRO - Monthly | $5.99 | per month |
| MotoCortex PRO - Annual | $19.99 | per year |


## Frequently asked questions

### Is Overtime Calculator plus free?

Overtime Calculator plus is free to download, with no in-app purchases.

### Is Cortex OBD2 Diagnostic Scanner free?

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

### Do Overtime Calculator plus or Cortex OBD2 Diagnostic Scanner have ads?

Neither Overtime Calculator plus nor Cortex OBD2 Diagnostic Scanner shows ads.

### Which is updated more often, Overtime Calculator plus or Cortex OBD2 Diagnostic Scanner?

Overtime Calculator plus ships an update every 17 months, and Cortex OBD2 Diagnostic Scanner every 10 days. Most recently, Overtime Calculator plus was updated on October 14, 2026 and Cortex OBD2 Diagnostic Scanner on October 20, 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.*