# Aceros PRO vs Certezia

The clearest difference is in-app purchases: Aceros PRO at none against Certezia's 1. Aceros PRO also leads on device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Certezia sells 1 in-app purchase, starting at $3.99 per year. Aceros PRO asks for nothing beyond the download.

Aceros PRO ships an update every 3 weeks, Certezia fortnightly. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Aceros PRO | Certezia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/certezia/id6756247213/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 21 MB | 113 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Aceros Arequipa S.A.](https://appshunter.io/developer/1186106886) | [Certezia EIRL](https://appshunter.io/developer/1859511027) |

## What reviewers say

### Aceros PRO

[App page](https://appshunter.io/ios/app/aceros-pro/id1597699755)

**In-app purchases:** none


### Certezia

[App page](https://appshunter.io/ios/app/certezia/id6756247213)

Digitally sign documents securely and legally in Peru using your electronic National Identity Document (DNIe) and NFC technology. This app allows for quick and easy signing directly from your smartphone, eliminating the need for extra hardware or certificates.

**Highlights:** Digital document signing, Utilizes DNIe and NFC, Smartphone signing, Legal compliance in Peru, No USB readers or extra certificates needed

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Firma Personal Premium | $3.99 | per year |


## Frequently asked questions

### Is Aceros PRO free?

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

### Is Certezia free?

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

### Do Aceros PRO or Certezia have ads?

Neither Aceros PRO nor Certezia shows ads.

### Which is updated more often, Aceros PRO or Certezia?

Aceros PRO ships an update every 3 weeks, and Certezia fortnightly. Most recently, Aceros PRO was updated on October 25, 2026 and Certezia on October 21, 2026.

---

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