Last updated: November 12, 2026.
Master Keyz provides songwriting tools (rhymes, chords, dictionary and slang lookups) and an AI writing assistant. Everything we sell is digital: subscriptions, AI credit packs and digital downloads. We do not sell or ship physical products. Features may change over time.
You are responsible for your account and for keeping your password secure. You must be at least 13 years old to use Master Keyz, and if you are under 18 you need a parent or guardian's permission to buy a plan.
You own the lyrics you write. You give us a limited licence to store and process them only to provide the service. AI suggestions may resemble existing songs; you are responsible for checking anything before you release it commercially.
Paid plans (Pro $9.99/month, Premier $19.99/month, Unlimited $49.99/month) are billed monthly in advance through Stripe and renew automatically until you cancel in the billing portal. Cancelling stops future renewals; you keep access until the end of the period you already paid for. Monthly AI credits reset each billing period and do not roll over. Extra credit packs are one-time purchases. Payments are non-refundable except where the law requires otherwise, or if you were charged in error, in which case contact us within 14 days. Fair-use limits apply on every plan, including Unlimited.
All purchases are delivered digitally. Your plan, AI credits or download is available in your account (or as a download) immediately after your payment goes through. Nothing is shipped and we never need a shipping address. If something you paid for does not appear, contact us and we will fix it or refund the billing error.
No abuse of the service, scraping, reselling of AI access, attempts to get around credit limits, or unlawful content.
The service is provided "as is" without warranties. To the extent the law allows, our total liability to you is limited to the amount you paid us in the 12 months before the claim. Third-party lookups (for example Urban Dictionary) are user-generated and unfiltered.
We may update these terms and will post the new date here. We may suspend accounts that break these terms. You can stop using the service and delete your account at any time.