# SendScan vs 4DI

The clearest difference is in-app purchases: 4DI at none against SendScan's 2. 4DI also leads on update cadence (every 3 days vs every 5 weeks) and iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. SendScan sells 2 in-app purchases, starting at $4.99 per year. 4DI asks for nothing beyond the download.

SendScan ships an update every 5 weeks, 4DI every 3 days. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SendScan | 4DI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sendscan-scanner-plus-automation/id6753208936/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 4 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cesare Forelli](https://appshunter.io/developer/906894503) | [Robert Poetzsch](https://appshunter.io/developer/1860642630) |

## What reviewers say

### SendScan

[App page](https://appshunter.io/ios/app/sendscan-scanner-plus-automation/id6753208936)

Streamline document scanning with automated workflows. Scan, rename, email, and save documents with a single tap. Features OCR for searchable PDFs and text extraction, all with a focus on user privacy and local storage.

**Highlights:** Automated scanning workflows, OCR for searchable PDFs, Text extraction to .txt files, Email and Message sharing automation, Intelligent file renaming, Home Screen and Lock Screen widgets, Private iCloud sync

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SendScan Pro 1 year | $4.99 | per year |
| SendScan Pro Lifetime | $9.99 | one-time |


### 4DI

[App page](https://appshunter.io/ios/app/4di-data-integrity-tool/id6760180866)

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

**In-app purchases:** none


## Frequently asked questions

### Is SendScan free?

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

### Is 4DI free?

4DI is free to download, with no in-app purchases.

### Do SendScan or 4DI have ads?

Neither SendScan nor 4DI shows ads.

### Which is updated more often, SendScan or 4DI?

SendScan ships an update every 5 weeks, and 4DI every 3 days. Most recently, SendScan was updated on September 21, 2026 and 4DI on September 22, 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.*