Best apps like 21-Card

10+ similar apps compared and reviewed

3.7 avg rating
10 free apps
Updated September 2026

Whether you want more options like 21 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to 21

More apps like 21

4
Smartap - NFC Tools
Smartap - NFC Tools
Smartap - NFC Tools
Read/Write NFC tags
Free

Easily read and write information to NFC tags. This utility allows for quick data transfer and interaction with NFC-enabled devices.

Read NFC tagsWrite NFC tagsNFC data interaction
🔧 Utilities
(1)
free
5
Arabic Keyboard Translator
Arabic Keyboard Translator
Arabic Keyboard Translator
Type, Translate & Learning
Free

Enhance your Arabic typing with customizable layouts, predictive text, and auto-correction. This tool supports seamless language switching and personalized themes, making it ideal for students, professionals, and content creators.

Customizable keyboard layoutsPredictive text and auto-correctionSeamless Arabic/English language switching
🔧 Utilities
(60)
free with in-app purchases
6
Safewalk Fast Auth
Safewalk Fast Auth
Safewalk Fast Auth
by AltiPeak SA
Free

This app offers a secure and user-friendly method for accessing websites and networks. It provides fast authentication and robust protection against various cyber threats like phishing and man-in-the-middle attacks.

Fast authentication via notificationsAsymmetric key protectionSecure device mechanism authentication
🔧 Utilities
(1)
free
7
ChatMCP
ChatMCP
ChatMCP
Empower AI with local tools
Free

This app allows AI models to interact with native iOS functionalities and external data sources. It provides a standardized protocol for seamless integration, enabling AI to access system services like calendars and photos, and can be extended with custom tools.

Local tool integration with iOS frameworksRemote tool connectivitySecure and standardized AI interactions
🔧 Utilities
(63)
free with in-app purchases
8
Air Tag Detector: Find Tracker
Air Tag Detector: Find Tracker
Air Tag Detector: Find Tracker
Find My AirTag, SmartTag, Tile
Free

Detect unknown Bluetooth trackers like AirTags in your vicinity. Provides real-time scanning, movement pattern analysis, and alerts to help you maintain privacy and security against unwanted tracking.

Real-time Bluetooth device scanningMovement pattern detectionDistance estimation via signal strength
🔧 Utilities
(93)
free with in-app purchases
9
Find My IP - Find Device IP
Find My IP - Find Device IP
Find My IP - Find Device IP
Best Way to Find a Device IP
Free

Discover your device's public and local IP addresses with ease. View country, city, and map location for each IP, with all findings logged for future reference. This universal app is designed for all iOS devices.

Find public and local IP addressesDisplay IP country, city, and mapIP address logging
🔧 Utilities
(1.3K)
free with in-app purchases
10
How Old Do I Look? Face Age
How Old Do I Look? Face Age
How Old Do I Look? Face Age
How Old Am I? AI Age Guesser
Free

Discover your estimated age or the age of others in photos using advanced AI. Upload or take pictures, and the app will analyze faces for quick results. Share your findings and compare different looks.

AI face age analysisUpload photos from galleryTake photos with camera
🔧 Utilities
(295)
free with in-app purchases