# StampDoc vs Stamp Studio

The clearest difference is update cadence: Stamp Studio at monthly against StampDoc's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

StampDoc ships an update every 3 months, Stamp Studio monthly. Both last shipped on October 28, 2026.

## The numbers

| Metric | StampDoc | Stamp Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stampdoc-sign-pdf-documents/id6753040013/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 56 MB | 4 MB |
| Requires iOS | **15** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anyelo Moreno](https://appshunter.io/developer/1842233376) | [Beijing Yangming Jiuha Technology Co., Ltd](https://appshunter.io/developer/1600924656) |

## What reviewers say

### StampDoc

[App page](https://appshunter.io/ios/app/stampdoc-sign-pdf-documents/id6753040013)

Easily sign PDFs and images, create custom digital stamps, and manage your documents securely from your iPhone or iPad. Streamline your workflow by going fully digital, eliminating the need for printing and scanning.

**Highlights:** Sign PDFs and images, Create custom digital stamps, Signature editor and scanner, Import and reuse stamps, Built-in PDF and image viewer, Save and share signed files

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

**In-app purchases:** none


### Stamp Studio

[App page](https://appshunter.io/ios/app/stamp-studio/id6790093959)

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

**In-app purchases:** none


## Frequently asked questions

### Is StampDoc free?

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

### Is Stamp Studio free?

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

### Do StampDoc or Stamp Studio have ads?

Neither StampDoc nor Stamp Studio shows ads.

### Which is updated more often, StampDoc or Stamp Studio?

StampDoc ships an update every 3 months, and Stamp Studio monthly. Most recently, StampDoc was updated on October 28, 2026 and Stamp Studio on October 28, 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.*