Comparison

NDAKey vs Nomion Certificate

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

Head to head
About

NDAKey

Manage your digital identity securely. Store verified credentials on your device and choose exactly what information to share with others. Protect your data with end-to-end encryption and passwordless sign-in.

Highlights
  • Selective information sharing
  • End-to-end encrypted data transmission
  • Store digital credentials on device
  • Passwordless sign-in with passkeys
  • Receive and manage credentials
  • Direct sharing via QR code
Features
Read full description

NDAKey is a self-sovereign data management app that allows users to store digital credentials on their phones and selectively choose which information to share. Digital credentials contain user information that has been verified and digitally signed by an issuer, such as subscriber information verified by a telecommunications provider. Each credential is issued once and can be reused multiple times during its validity period at organizations connected to NDAKey. KEY FEATURES 1. Selective Sharing - Select individual information fields to share, such as full name and place of birth, without including permanent residence. - Review the data recipient's name, purpose of use, and requested information before giving consent. - Confirm each sharing request using Face ID or Touch ID. 2. Data Protection - End-to-end encryption during data transmission, ensuring that only the recipient can decrypt the data. - Digital credentials are stored on the user's device. - Passwordless sign-in using passkeys. 3. Receive and Manage Digital Credentials - Open your wallet using a chip-enabled national ID card and facial verification. - Request credentials from issuers connected to NDAKey. - Track the validity of each credential, including expired or revoked status. 4. Direct Sharing via QR Code - Scan a QR code to receive a request for information sharing. - Generate a QR code to share digital credentials or request credentials from another person in person. 5. Account Management - View the history of credential sharing, receiving, and issuance. - Manage passkeys and signed-in devices. - Delete your account directly within the app. Note: Digital credentials in NDAKey provide supplementary information and do not replace documents issued by competent government authorities. Acceptance of digital credentials depends on each data recipient.

About

Nomion Certificate

Features
Read full description

Nomion Identity sử dụng công nghệ NFC để xác thực nhanh chóng an toàn chính xác. Nomion Identity sử dụng công nghệ NFC (Near Field Communication), cho phép người dùng xác thực chứng chỉ và thông tin liên quan chỉ với một chạm. Bằng cách sử dụng thiết bị điện thoại hỗ trợ NFC, hệ thống đảm bảo việc truy xuất dữ liệu nhanh chóng, an toàn và chính xác.

Screenshots

NDAKey4 screens
Nomion Certificate4 screens

Verdict

The call

The clearest difference is update cadence: Nomion Certificate at fortnightly against NDAKey's monthly. On price, ads, in-app purchases and device support 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

NDAKey ships an update monthly, Nomion Certificate fortnightly. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 7 level
NDAKey versus Nomion Certificate: the parameters behind the verdict, then further details
ParameterNDAKeyNomion Certificate
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size116 MB12 MB
Age rating17+4+
DeveloperPILA GROUP JOINT STOCK COMPANYPhygital Labs

In-app purchases

None

NDAKey

No in-app purchases

None

Nomion Certificate

No in-app purchases

Questions

Is NDAKey free?
NDAKey is free to download, with no in-app purchases.
Is Nomion Certificate free?
Nomion Certificate is free to download, with no in-app purchases.
Do NDAKey or Nomion Certificate have ads?
Neither NDAKey nor Nomion Certificate shows ads.
Which is updated more often, NDAKey or Nomion Certificate?
NDAKey ships an update monthly, and Nomion Certificate fortnightly. Most recently, NDAKey was updated on November 4, 2026 and Nomion Certificate on October 25, 2026.

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