NDA Key vs OpenMind AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NDA Key
Manage your personal information securely and easily. Control how your data is shared and maintain your digital identity with a decentralized identifier wallet. Ensures data integrity and compliance with government regulations.
- Personal information management
- Sharing control
- Decentralized Identifier (DID) wallet
- Digital identity creation and management
- Data integrity and interoperability
- Government compliance
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NDA KEY - A simple, secure, and user-friendly personal information management application. Easily input and update your personal information with just a few taps. With its sharing management feature, you have full control over how your information is shared, allowing you to add, edit, or stop sharing in a flexible and convenient manner. The application also integrates a Decentralized Identifier (DID) wallet feature, enabling you to create, manage, and securely share your digital identity while ensuring data integrity and interoperability with decentralized systems. NDA is committed to protecting your data with cutting-edge security technologies while fully complying with the requirements of Decree 13 by the Government of Vietnam. Download NDA KEY now to experience the convenience and security of managing your personal information!
OpenMind AI
Contribute to robot development by reviewing video footage and providing wireless signal data. Participate in quests to enhance robot safety and intelligence in real-world settings.
- Review robot videos
- Contribute wireless signal insights
- Join robot improvement quests
- Enhance robot safety
- Improve robot intelligence
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Help robots succeed in everyday environments. Review and evaluate robot videos, contribute wireless signal insights, and join quests that make robots safer, smarter, and more reliable.
Screenshots
Verdict
The clearest difference is review sentiment: NDA Key at 100% against OpenMind AI's 67%. NDA Key also leads on iOS requirement (13.0 vs 15.1). 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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.
| Parameter | NDA Key | OpenMind AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 45 MB | 56 MB |
| Age rating | 4+ | 12+ |
| Developer | PILA GROUP JOINT STOCK COMPANY | Sandbox Inc. |
Customer experience
NDA Key
OpenMind AI
In-app purchases
NDA Key
No in-app purchases
OpenMind AI
No in-app purchases
