Thần Đèn vs NDAKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Weather forecasts
- Lottery results
- Cryptocurrency prices (Bitcoin, Ethereum)
- Simple calculations
- Virtual assistant
Read full descriptionHide 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 -.....
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.
- 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
Read full descriptionHide 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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Thần Đèn ships an update every 2 months, NDAKey monthly. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.
| Parameter | Thần Đèn | NDAKey |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.2 — better | 16.0 |
| Further details — not scored | ||
| Size | 35 MB | 116 MB |
| Age rating | 4+ | 17+ |
| Developer | Viettel Telecom | PILA GROUP JOINT STOCK COMPANY |
Customer experience
Thần Đèn
NDAKey
In-app purchases
Thần Đèn
No in-app purchases
NDAKey
No in-app purchases









