Comparison

DIGITAL SEAL vs Proton Authenticator & 2FA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DIGITAL SEAL

This app demonstrates advanced identity document verification technology. It allows users to scan and verify passports, IDs, and driver's licenses using NFC chips and optical security features. It's designed for software companies and integrators building their own identity verification solutions.

Highlights
  • NFC chip verification for passports and IDs
  • MRZ, 2D barcode, and license plate scanning
  • Visual inspection of document security features
  • Online and offline verification modes
  • Reference database of global travel documents
  • Demonstrates Mobile SDK capabilities
Features
Read full description

DIGITAL SEAL APP BY KINEGRAM.DIGITAL Try this field tested identity document verification technology before building your own solution. DIGITAL SEAL app is the free demonstration app for our professional Mobile SDKs, designed for software companies and integrators creating their own identity verification solutions. WHAT IS THE DIGITAL SEAL APP? The DIGITAL SEAL app demonstrates the capabilities of our MOBILE SCAN SDK, MOBILE CHIP SDK and DOC LIBRARY. Test the DIGITAL SEAL app, see how • easily you can scan MRZ, license plates, 2D barcodes, Visible Digital Seals and IDB. • securely you can verify identity documents like passports and IDs based on their chip. • the reference database supports you with a side-by-side inspection of physical security features on the document. KEY FEATURES – SCANNING APP & CHIP VERIFICATION Chip-Based eMRTD Chip Verification • Read and verify NFC chips in biometric passports and ID cards • Extract chip data according to ICAO 9303 standards • Compliant with ISO 18013 and ISO 22376:2023 • Authenticate Passports and ID cards • Verify document authenticity and detect cloning in real-time • Online and offline verification modes MRZ, 2D Barcode, License Plate, VDS and IDB Scanner • Fast and accurate MRZ (Machine Readable Zone) scanning • 2D barcode scanner, for example QR codes • Support for PDF417 barcodes • License plate recognition capability • VDS (Visible Digital Seal) and IDB (ICAO Data Structure for Barcode) scanner Identity Document Verification • Support for visual verification of passports, ID cards, and driver's licenses • Access to a comprehensive document reference library • Optical security feature display FOR SOFTWARE COMPANIES & INTEGRATORS OF IDENTITY VERIFICATION SOLUTIONS This demo app helps you evaluate our mobile SDKs: • MOBILE CHIP SDK – Read NFC enabled passports and ID cards for biometric verification and chip authentication. Available as online or offline solution. • MOBILE SCAN SDK – Advanced OCR and MRZ scanner for rapid data capture from identity documents, 2D barcodes, license plates, Visible Digital Seals and IDB. • CHIP VERIFY – Checking electronic travel documents with your mobile phone. • DOC LIBRARY – Comprehensive reference database with security features of global travel documents. USE CASES FOR YOUR SOLUTION • Customer onboarding (KYC/AML compliance) • Hotel and restaurant guest check-in • Age verification and access control • Border control, policing and law enforcement • Member registration systems • Travel and hospitality apps • Identity verification platforms TECHNICAL HIGHLIGHTS • NFC reader supporting ISO 14443-3/4 standards • eMRTD data groups DG1-DG17 support • ICAO 9303 compliant verification • Works in online and offline mode • Fast and reliable chip authentication • User-friendly interface requiring no security or document expertise FLEXIBLE INTEGRATION OPTIONS • Native SDKs for mobile devices • Seamless integration into existing apps • Standalone app customization • On-premise server solutions • Flexible licensing for startups to enterprises WHY kinegram.digital? OVD Kinegram AG is a global leader in protecting identities. Known as a pioneer in security features for physical ID documents, we have expanded our expertise into the digital realm. With kinegram.digital, we support companies and authorities with future-proof digital solutions for verifying security features in identity documents such as ID cards, passports, residence permits, and driver's licenses. With the DIGITAL SEAL app, you can test the same professional-grade verification technology before integrating our SDKs into your own application. DOWNLOAD & EVALUATE Download the DIGITAL SEAL app for free and experience trustworthy identity verification technology. After testing, contact us to discuss SDK licensing and integration into your solution. Are you ready to build your own identity verification solution? Download the DIGITAL SEAL app today to get started!

About

Proton Authenticator & 2FA

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

Highlights
  • End-to-end encrypted iCloud sync
  • Effortless import from other authenticators
  • Secure backup and export
  • Swiss privacy by design
  • Open source and transparent
  • Offline support
Features
Read full description

Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me

Screenshots

DIGITAL SEAL4 screens
Proton Authenticator & 2FA4 screens

Verdict

The call

The clearest difference is review sentiment: DIGITAL SEAL at 100% against Proton Authenticator & 2FA's 58%. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

DIGITAL SEAL ships an update fortnightly, Proton Authenticator & 2FA weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
DIGITAL SEAL versus Proton Authenticator & 2FA: the parameters behind the verdict, then further details
ParameterDIGITAL SEALProton Authenticator & 2FA
PriceFreeFree
Rating—4.6 (514 ratings) — better
Positive reviews100.0% of reviews — better57.6% of reviews
Number of ratings—514 — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size70 MB120 MB
Age rating4+4+
DeveloperOVD Kinegram AGProton AG

Customer experience

DIGITAL SEAL

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Proton Authenticator & 2FA

All ratings314 ratings
Positive82.8%
Neutral6.7%
Negative10.5%
Written reviews255 reviews
Positive57.6%
Neutral19.2%
Negative23.1%

Bugs and requests

DIGITAL SEAL

Not enough reviews yet to summarise bugs or requests.

Proton Authenticator & 2FA

Reported bugs

4 issues
  • Sync/login loop on iPad
  • 2FA input broken on non-iPhone devices
  • Screen strobing on iPad
  • Duplicate entries after import

Requested features

5 requests
  • PIN unlock for desktop
  • Alphabetical sorting option
  • Export function (not just Proton-specific backup)
  • Native macOS app
  • Option to hide item icons

In-app purchases

None

DIGITAL SEAL

No in-app purchases

None

Proton Authenticator & 2FA

No in-app purchases

Questions

Is DIGITAL SEAL free?
DIGITAL SEAL is free to download, with no in-app purchases.
Is Proton Authenticator & 2FA free?
Proton Authenticator & 2FA is free to download, with no in-app purchases.
Do DIGITAL SEAL or Proton Authenticator & 2FA have ads?
Neither DIGITAL SEAL nor Proton Authenticator & 2FA shows ads.
Which is updated more often, DIGITAL SEAL or Proton Authenticator & 2FA?
DIGITAL SEAL ships an update fortnightly, and Proton Authenticator & 2FA weekly. Most recently, DIGITAL SEAL was updated on October 24, 2026 and Proton Authenticator & 2FA on October 28, 2026.

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