Comparison

Thần Đèn vs NDAKey

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

Head to head
About

Thần Đèn

This virtual assistant app offers a range of useful features, including weather forecasts, lottery results, cryptocurrency prices, and simple calculations. It aims to provide quick access to information and perform basic tasks.

Highlights
  • Weather forecasts
  • Lottery results
  • Cryptocurrency prices (Bitcoin, Ethereum)
  • Simple calculations
  • Virtual assistant
Features
Read full description

Là sản phẩm trợ lý ảo với nhiều tính năng thú vị. Những điều bạn có thể làm với Thần Đèn: - Tra thời tiết - Tra kết quả xổ số - Giá bitcoin, etherum - Làm phép tính đơn giản -.....

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

Thần Đèn4 screens
NDAKey4 screens

Verdict

The call

The clearest difference is review sentiment: NDAKey at 100% against Thần Đèn's 50%. Thần Đèn's advantage is iOS requirement (9.2 vs 16.0). 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

Thần Đèn ships an update every 2 months, NDAKey monthly. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
Thần Đèn versus NDAKey: the parameters behind the verdict, then further details
ParameterThần ĐènNDAKey
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.2 — better16.0
Further details — not scored
Size35 MB116 MB
Age rating4+17+
DeveloperViettel TelecomPILA GROUP JOINT STOCK COMPANY

Customer experience

Thần Đèn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

NDAKey

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

In-app purchases

None

Thần Đèn

No in-app purchases

None

NDAKey

No in-app purchases

Questions

Is Thần Đèn free?
Thần Đèn is free to download, with no in-app purchases.
Is NDAKey free?
NDAKey is free to download, with no in-app purchases.
Do Thần Đèn or NDAKey have ads?
Neither Thần Đèn nor NDAKey shows ads.
Which is updated more often, Thần Đèn or NDAKey?
Thần Đèn ships an update every 2 months, and NDAKey monthly. Most recently, Thần Đèn was updated on November 5, 2026 and NDAKey on November 4, 2026.

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