# Stamp Mail vs VaultScan PDF Scanner

The clearest difference is update cadence: Stamp Mail at weekly against VaultScan PDF Scanner's every 3 months. Stamp Mail also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stamp Mail sells 4 in-app purchases, starting at $20.00 per month and VaultScan PDF Scanner sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Stamp Mail ships an update weekly, VaultScan PDF Scanner every 3 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Stamp Mail | VaultScan PDF Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stamp-mail/id6748666316/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Freemium | — |
| Size | 76 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stamp AI](https://appshunter.io/developer/1826931069) | [NEXOBE INC](https://appshunter.io/developer/1831858326) |

## What reviewers say

### Stamp Mail

[App page](https://appshunter.io/ios/app/stamp-mail/id6748666316)

This AI-powered email client automates tasks like drafting replies, prioritizing messages, and extracting to-dos. It offers an agent to retrieve information and reorganize your inbox using plain English commands. A special mode allows quick review and approval of automated changes.

**Highlights:** Automated email drafting, Email prioritization, To-do extraction, Email summarization, Information retrieval via AI agent, Inbox reorganization, Approve/reject agent changes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stamp Individual (Monthly) | $20.00 | per month |
| Stamp Business (Monthly) | $50.00 | per month |
| Stamp Individual (Annual) | $191.99 | per year |
| Stamp Business (Annual) | $479.99 | per year |


### VaultScan PDF Scanner

[App page](https://appshunter.io/ios/app/vaultscan-pdf-scanner/id6765825266)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VaultScan Pro Monthly | $1.99 | per month |
| VaultScan Pro Annual | $9.99 | per year |
| VaultScan Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Stamp Mail free?

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

### Is VaultScan PDF Scanner free?

VaultScan PDF Scanner is free to download, with in-app purchases available.

### Do Stamp Mail or VaultScan PDF Scanner have ads?

Neither Stamp Mail nor VaultScan PDF Scanner shows ads.

### Which is updated more often, Stamp Mail or VaultScan PDF Scanner?

Stamp Mail ships an update weekly, and VaultScan PDF Scanner every 3 months. Most recently, Stamp Mail was updated on October 15, 2026 and VaultScan PDF Scanner on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*