The free, user-friendly app uses innovative photo capture technology to digitally scan the test strip and provides a personalized water treatment recommendation. And no registration required. Spend more time enjoying your pool and less time maintaining it! For use with the app-enabled test strips in the AquaChek Select Connect Starter Kit which includes: • Complete Pool & Spa Care Guide from our water quality experts • 7-in-1 test strips supporting App photo capture or manual read • Reusable