# Unit Converter & Calculators vs Notes and Doc Scanner

The clearest difference is in-app purchases: Notes and Doc Scanner at none against Unit Converter & Calculators's 1. Unit Converter & Calculators's advantage is update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter & Calculators sells 1 one-off in-app purchase. Notes and Doc Scanner asks for nothing beyond the download.

Unit Converter & Calculators ships an update every 5 days, Notes and Doc Scanner fortnightly. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Unit Converter & Calculators | Notes and Doc Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 34 MB | 56 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Umit YILMAZ](https://appshunter.io/developer/1772563348) | [Ashish Kumar](https://appshunter.io/developer/1620115071) |

## What reviewers say

### Unit Converter & Calculators

[App page](https://appshunter.io/ios/app/unit-converter-and-calculators/id6736622331)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Notes and Doc Scanner

[App page](https://appshunter.io/ios/app/notes-and-doc-scanner/id6755816673)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter & Calculators free?

Unit Converter & Calculators is free to download, with in-app purchases available.

### Is Notes and Doc Scanner free?

Notes and Doc Scanner is free to download, with no in-app purchases.

### Do Unit Converter & Calculators or Notes and Doc Scanner have ads?

Both Unit Converter & Calculators and Notes and Doc Scanner show ads.

### Which is updated more often, Unit Converter & Calculators or Notes and Doc Scanner?

Unit Converter & Calculators ships an update every 5 days, and Notes and Doc Scanner fortnightly. Most recently, Unit Converter & Calculators was updated on October 8, 2026 and Notes and Doc Scanner on October 5, 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.*