# Evolution EMS vs StampDoc

The clearest difference is update cadence: Evolution EMS at every 5 days against StampDoc's every 2 months. Evolution EMS also leads on iOS requirement (12 vs 15). 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.

Evolution EMS ships an update every 5 days, StampDoc every 2 months. The most recent releases landed on October 11, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Evolution EMS | StampDoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stampdoc/id6753040013/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | — | Free |
| Size | 29 MB | 67 MB |
| Requires iOS | **12** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Arkadiusz Bocki](https://appshunter.io/developer/1784604855) | [Anyelo Moreno](https://appshunter.io/developer/1842233376) |

## What reviewers say

### Evolution EMS

[App page](https://appshunter.io/ios/app/evolution-ems/id6739272458)

**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, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Evolution EMS free?

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

### Is StampDoc free?

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

### Do Evolution EMS or StampDoc have ads?

Neither Evolution EMS nor StampDoc shows ads.

### Which is updated more often, Evolution EMS or StampDoc?

Evolution EMS ships an update every 5 days, and StampDoc every 2 months. Most recently, Evolution EMS was updated on October 11, 2026 and StampDoc on October 23, 2026.

---

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