# My Authenticator vs StampDoc

The clearest difference is update cadence: StampDoc at every 2 months against My Authenticator's every 6 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.

My Authenticator ships an update every 6 months, StampDoc every 2 months. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | My Authenticator | StampDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stampdoc/id6753040013/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 1 MB | 67 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Igor Nikolaev](https://appshunter.io/developer/1548337764) | [Anyelo Moreno](https://appshunter.io/developer/1842233376) |

## What reviewers say

### My Authenticator

[App page](https://appshunter.io/ios/app/my-authenticator/id1548337762)

**Features:** macOS Compatibility

**In-app purchases:** none


### StampDoc

[App page](https://appshunter.io/ios/app/stampdoc/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

**In-app purchases:** none


## Frequently asked questions

### Is My Authenticator free?

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

### Is StampDoc free?

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

### Do My Authenticator or StampDoc have ads?

Neither My Authenticator nor StampDoc shows ads.

### Which is updated more often, My Authenticator or StampDoc?

My Authenticator ships an update every 6 months, and StampDoc every 2 months. Most recently, My Authenticator was updated on September 16, 2026 and StampDoc on September 20, 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.*