# PDF Scanner Document Convert + vs EchoUnite

The clearest difference is in-app purchases: EchoUnite at none against PDF Scanner Document Convert +'s 3. EchoUnite also leads on update cadence (every 3 days vs every 2 weeks). PDF Scanner Document Convert +'s advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Scanner Document Convert + sells 3 in-app purchases, starting at $4.99 per 7 days. EchoUnite asks for nothing beyond the download.

PDF Scanner Document Convert + ships an update every 2 weeks, EchoUnite every 3 days. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PDF Scanner Document Convert + | EchoUnite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (97 ratings)](https://appshunter.io/ios/app/pdf-scanner-document-convert-plus/id6753771856/reviews)** | — |
| Number of ratings | **97** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 67 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Premium Apps+](https://appshunter.io/developer/1768756524) | [Andrew Rizzo](https://appshunter.io/developer/1874980406) |

## What reviewers say

### PDF Scanner Document Convert +

[App page](https://appshunter.io/ios/app/pdf-scanner-document-convert-plus/id6753771856)

Transform your phone into a portable office for scanning, editing, signing, and reading PDF documents. Effortlessly manage your files with features like automatic edge detection, text annotation, and secure digital signatures. Enjoy a simple, smart, and secure way to handle all your document needs.

**Highlights:** Scan documents with automatic edge detection, Edit text, add highlights, and annotate PDFs, Create and apply digital signatures, Read PDFs with customizable view modes, Secure on-device document storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly: All Features | $4.99 | per 7 days |
| Yearly Plan: All Features | $19.99 | per year |
| Lifetime (One time) Purchase | $49.99 | one-time |


### EchoUnite

[App page](https://appshunter.io/ios/app/echounite/id6759347526)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Scanner Document Convert + free?

PDF Scanner Document Convert + is free to download, with in-app purchases available.

### Is EchoUnite free?

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

### Do PDF Scanner Document Convert + or EchoUnite have ads?

EchoUnite shows ads; PDF Scanner Document Convert + does not.

### Which is updated more often, PDF Scanner Document Convert + or EchoUnite?

PDF Scanner Document Convert + ships an update every 2 weeks, and EchoUnite every 3 days. Most recently, PDF Scanner Document Convert + was updated on October 14, 2026 and EchoUnite 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.*