# Paperless Pro vs Units

The clearest difference is in-app purchases: Units at none against Paperless Pro's 2. Units also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Paperless Pro sells 2 in-app purchases, starting at $1.99 per month. Units asks for nothing beyond the download.

## The numbers

| Metric | Paperless Pro | Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (15 ratings)](https://appshunter.io/ios/app/units-conversion-calculator/id6761082020/reviews)** |
| Number of ratings | — | **15** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | — | Free |
| Size | 2 MB | 33 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Helder Nunes](https://appshunter.io/developer/1393847796) | [Matys Bouziane](https://appshunter.io/developer/1785637310) |

## What reviewers say

### Paperless Pro

[App page](https://appshunter.io/ios/app/paperless-pro/id6477398344)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paperless Pro - Monthly | $1.99 | per month |
| Paperless Pro - Year | $17.99 | per year |


### Units

[App page](https://appshunter.io/ios/app/units-conversion-calculator/id6761082020)

Instantly convert any unit with this comprehensive tool. It offers 57 categories, built-in calculators for finance and health, and size lookup tables for clothing and hardware. Enjoy offline functionality and a clean, ad-free experience.

**Highlights:** 57 conversion categories, Built-in calculators (currency, finance, health), Size lookup tables, Offline functionality, Conversion history, Favorites, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is Paperless Pro free?

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

### Is Units free?

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

### Do Paperless Pro or Units have ads?

Neither Paperless Pro nor Units shows ads.

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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.*