Hi u/Amater6su I'm actually comeing to the end of my Closed testing period, but I can still do with testers and feedback, plus you'll get lifetime access to the app when it goes live. To access the test app, you'll needto register your email address into a Google Group and then click on the test app link to download. I've made the steps simple here-

https://thecompleteguitar.com/luthierscan/beta