Comparison

Private Contacts 360 vs NDAKey

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

Head to head
About

Private Contacts 360

Securely manage and hide your personal contacts and calls. Separate work and personal life, filter spam, and protect sensitive information with password or biometric locks. Back up your private data for peace of mind.

Highlights
  • Private contact management
  • App lock with password/biometrics
  • Encrypt contact data
  • Filter spam and unknown calls
  • Backup and restore contacts
  • Separate personal and work contacts
Features
Read full description

Manage and hide your private contacts, secure your calls – with Private Contacts you will separate personal & work and avoid spam. Are you tired of your personal phone number being exposed, your work and personal contacts mixed up, or getting spam calls from unknown numbers? With Private Contacts – Hide & Secure Your Phonebook, you will regain control of your contacts, hide your outgoing/incoming calls and protect important information in just seconds. Private Contacts is an outstanding contact management application, helping you to anonymize your contacts & call numbers, secure your private contacts, and clearly group personal / work. Different from normal contacts, it puts privacy and separation first. Outstanding features (Desire): - Easy private contact management: create separate contact groups for personal, work, customers and hide them from the main list. - High security: lock the app with a password or fingerprint/Face ID, encrypt contact data. - Anti-spam & unknown numbers: automatically filter and hide unknown calls/numbers, only show allowed numbers. - Backup and restore: protect your private contacts, ensure no data loss when changing phones. - Friendly interface, quick operation: just a few clicks to hide or group contacts. Thousands of users have trusted Private Contacts to protect private contacts and hide callers - with quality reviews affirming "very easy to use", "preserve privacy", "eliminate unknown number spam". Download Private Contacts now and start creating a private area for your contacts - hide numbers, secure contacts, group today to regain control of your information. With Private Contacts, you can “hide contacts”, “hide phone number”, “secure contacts”, “manage private contacts list”, “block spam calls and hide number”, “private contacts vault app” – all in one app. Let Private Contacts become your professional private contacts app right now. Our commitment: – No annoying ads in the app. – Contact data is not sold or used outside. – Continuously updated for more security and efficiency.

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.

Screenshots

Private Contacts 3604 screens
NDAKey4 screens

Verdict

The call

The clearest difference is review sentiment: NDAKey at 100% against Private Contacts 360's 0%. NDAKey also leads on update cadence (monthly vs every 31 months). On price, ads, in-app purchases and monetization model 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

Private Contacts 360 ships an update every 31 months, NDAKey monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
Private Contacts 360 versus NDAKey: the parameters behind the verdict, then further details
ParameterPrivate Contacts 360NDAKey
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 31 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size59 MB116 MB
Age rating17+17+
DeveloperNgoc Thanh PhamPILA GROUP JOINT STOCK COMPANY

Customer experience

Private Contacts 360

Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

NDAKey

Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Private Contacts 360

No in-app purchases

None

NDAKey

No in-app purchases

Questions

Is Private Contacts 360 free?
Private Contacts 360 is free to download, with no in-app purchases.
Is NDAKey free?
NDAKey is free to download, with no in-app purchases.
Do Private Contacts 360 or NDAKey have ads?
Neither Private Contacts 360 nor NDAKey shows ads.
Which is updated more often, Private Contacts 360 or NDAKey?
Private Contacts 360 ships an update every 31 months, and NDAKey monthly. Most recently, Private Contacts 360 was updated on November 3, 2026 and NDAKey on November 4, 2026.

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