Founding member plan

Founding member terms

Updated November 7, 2026.

What it is

The founding member plan is the presale of YGS Practice, a guitar practice app, created with Erich Andreas (Your Guitar Sage). The app is built and run by Doozle, a brand of Quantivo AI, LLC.

Who sells it

Your Guitar Sage (Erich Andreas). Your payment goes straight to Your Guitar Sage. Contact: matheus@doozle.io.

Price and payment

• $39, a one-time payment with no automatic renewal.
• After launch, the planned price is $9.99 a month or $59.99 a year. The founding price is only available until December 1.
• Payment by card on Your Guitar Sage's secure checkout page. If your bank is outside the United States, it may add a foreign transaction fee.

What's included

• 12 months of full access to the app, counted from launch.
• Early access to the beta, before the launch.
• A vote on what we build next.

When the app gets built

We start building if, by 11:59 pm on December 1 (US Central Time), at least 100 people become founding members or at least 1,500 people join the waitlist. The launch is planned for January 4, 2027.

Refunds

• Goal missed: if we reach neither 100 founding members nor 1,500 people on the waitlist by December 1, everyone gets 100% back, without having to ask, within 10 business days.
• Delay: if the app isn't live by March 1, 2027, everyone gets 100% back.
• Changed your mind: within 14 days of buying, you get 100% back, no reason needed.
• To ask for a refund, email matheus@doozle.io from the address you used to buy. The money goes back to the card or wallet you paid with; how long it takes to appear depends on your bank.

Using the app

The plan is personal and can't be transferred. The app will have its own terms of use at launch, which won't reduce what this plan includes.

Contact

Questions about your purchase or these terms: matheus@doozle.io.