Do I need the app to see the results or are they readable on the test card? Sarah Russell February 09, 2021 22:14 Updated Yes, you'll need the Vessel app to read the test card markers and see your results. The app is completely free—you only pay for the test cards.Download the app now on the Apple App Store or Google Play Store. Related articles Taking Your First Wellness Card Test How are the results given? Actual numbers or just a ‘wellness score’? How do I contact support? Is the app free to use? If I'm pregnant, can I still use Vessel? What's different?