# DigitalDNA Bit4id

> Digital certificate management for secure website access and digital signatures. (iPhone/iPad app by Bit4id srl.)

- Source: https://appshunter.io/ios/app/digitaldna-bit4id/id1317751953 (this page in markdown: same URL + `.md`)
- Developer: [Bit4id srl](https://appshunter.io/developer/783640533)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 17+
- Requires: iOS 13.0 · 167 MB
- Languages: American English, Italian, Brazilian Portuguese, European Spanish
- Released: 2018-03-29
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/digitaldna-bit4id/id1317751953/reviews.md

## What is DigitalDNA Bit4id?

L'applicazione consente di accedere ai siti che richiedono la client authentication, utilizzando il certificato CNS installato sul token DDNA. 

Principali funzionalità:
• Firma digitale CAdES, PAdES e XAdES conforme alla normativa eIDAS
• Verifica dei documenti firmati e dei certificati
• SSL Client Authentication
• Gestione del dispositivo crittografico
• Comunicazione Bluetooth con il token crittografico

## Key features

- Digital signature (CAdES, PAdES, XAdES)
- Document and certificate verification
- SSL Client Authentication
- Cryptographic device management
- Bluetooth communication with token

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/digitaldna-bit4id/id1317751953/reviews.md

### 2/5 — Problema

*2024-06-10, version 2.0.7*

Non riesce a associare né con iPhone 12 né con il Mac

### 1/5 — Pessima non compratela !

*2023-09-20, version 2.0.7*

La Chiavetta CNS Pro Non funziona con il Mac Book Pro con il processore Apple M1 pro (pur essendo le App compatibili con quelle sviluppate con iPhone e iPad): non comprate la chiavetta, soldi buttati e l'assistenza non intende sviluppare un'app che funzioni con il Mac Book Pro! Assurdo !!!

### 1/5 — Non funziona niente - "errore generico"

*2022-06-30, version 2.0.6*

L'App non funziona in nessun modo, da sempre "errore generico" in fase di accoppiamento al dispositivo di firma CNS Pro. Completamente inutile

### 1/5 — Non funziona niente - “errore generico”

*2022-06-30, version 2.0.6*

Risulta impossibile abbinare la FirmaFacile CNS Pro (Bluetooth) al telefono. Restituisce sempre “errore generico”.

Pessima App

### 1/5 — Inutile

*2021-09-10, version 2.0.5*

Non funziona. Non si connette.

### 1/5 — INUTILIZZABILE

*2020-09-16, version 2.0.5*

Che senso ha tenere sullo STORE un’APP così scadente?

## Frequently asked questions about DigitalDNA Bit4id

### What is DigitalDNA Bit4id used for?

DigitalDNA Bit4id allows you to access websites that require client authentication using a CNS certificate installed on your DDNA token. It also supports various digital signature formats and SSL client authentication.

### What types of digital signatures does DigitalDNA Bit4id support?

DigitalDNA Bit4id supports CAdES, PAdES, and XAdES digital signatures, which are compliant with eIDAS regulations.

### How does DigitalDNA Bit4id connect to the cryptographic token?

The application communicates with the cryptographic token wirelessly via Bluetooth, enabling secure management and usage of your digital certificates.

### Is DigitalDNA Bit4id available on Android devices?

Based on the provided data, DigitalDNA Bit4id is supported on iPhone and iPad. Compatibility with Android devices is not specified.

### What is the age rating for DigitalDNA Bit4id?

DigitalDNA Bit4id has an age rating of 17+, indicating it is intended for mature users.

### How often is DigitalDNA Bit4id updated?

The app was last updated on February 2, 2026, with version 2.0.9. The release date was March 29, 2018.

### Does DigitalDNA Bit4id have ads?

No, DigitalDNA Bit4id does not contain advertisements.

### Can I verify signed documents with DigitalDNA Bit4id?

Yes, DigitalDNA Bit4id includes functionality to verify signed documents and their associated certificates.

## Version history (last 5 releases)

### 2.0.9 — 2026-02-02

Questa versione introduce importanti miglioramenti in termini di sicurezza e compatibilità:
• Supporto alle firme digitali RSA a 3072 bit, per una protezione ancora più elevata dei documenti.
• Compatibilità estesa con le DigitalDNA dotate di seriale a 8 cifre, garantendo il funzionamento anche con i nuovi dispositivi.
Aggiorna l’app per beneficiare delle nuove funzionalità e della migliore esperienza d’uso.

### 2.0.8 — 2025-11-07

Aggiunto il supporto a nuove DigitalDNA key

### 2.0.7 — 2022-12-01

- aggiornato PKCS#11
- esteso supporto a iOS16

### 2.0.6 — 2021-09-20

Con questa release viene esteso il supporto a nuovi dispositivi

### 2.0.5 — 2020-06-18

- Correzione errori minori.

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## More apps by Bit4id srl

- [Authenticator](https://appshunter.io/ios/app/authenticator/id783640530)
- [firmafacile MOBILE](https://appshunter.io/ios/app/firmafacile-mobile/id1194033644)
- [Animsa SignCloud](https://appshunter.io/ios/app/animsa-signcloud/id1336433341)
- [SigningToday - INFN](https://appshunter.io/ios/app/signingtoday-infn/id1454362059)
- [NotaioID](https://appshunter.io/ios/app/notaioid/id1511512267)

All apps by Bit4id srl: https://appshunter.io/developer/783640533

## Related topics

[4signing](https://appshunter.io/ios/topics/4signing)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*