# Thần Đèn vs NDAKey

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.

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.

## The numbers

| Metric | Thần Đèn | NDAKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/than-en/id1406207027/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 35 MB | 116 MB |
| Requires iOS | **9.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Viettel Telecom](https://appshunter.io/developer/365850426) | [PILA GROUP JOINT STOCK COMPANY](https://appshunter.io/developer/1815759763) |

## What reviewers say

### Thần Đèn

[App page](https://appshunter.io/ios/app/than-en/id1406207027)

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:** macOS Compatibility

**In-app purchases:** none


### NDAKey

[App page](https://appshunter.io/ios/app/ndakey/id6475366901)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*