About

Heardles

Heardles is a set of free music blind tests that run in the browser: Zelda, Pokémon, Mario, Toby Fox (Undertale, Deltarune), Final Fantasy, NieR, Kingdom Hearts, Sonic, Animal Crossing, FromSoftware, Persona & Atlus, indie games, fighting games, film music, Ghibli, Disney, cartoon theme songs, anime openings and classical music. A fan project made by Alxios.

The music belongs to its rights holders and is streamed from SoundCloud. Heardles is not affiliated with Nintendo, Sega, The Pokémon Company, Square Enix, Toby Fox, Maddy Makes Games, Studio Ghibli or Disney.

Legal notice

Publisher: Alexandre Gaspar, sole trader (French micro-entreprise), 14 rue maria leonor rubiano. SIRET 911019248. VAT not applicable, art. 293 B of the French tax code. Contact: contact@alxios.com.

Host: Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, USA — vercel.com.

Privacy

No ads and no ad trackers. What the site stores:

On your device (local storage): settings, progress, stats. Cleared with the site's data.
Two technical cookies: an anonymous player id (challenges, leaderboards) and, if you sign in, your account.
With a Google account (optional): name, photo, email, handle, whether your profile is public, followed friends and game save, stored with Google Firebase.
Notifications (if you turn them on): your browser's push address and your time zone.
Cookieless audience measurement (Vercel Analytics) and anonymous game event counters.
Your IP address, only in hashed form, to limit abuse.
Clips are loaded from SoundCloud, which receives your IP address as with any stream.
Universe creation (with an account): the name and instructions you type are sent to Claude (Anthropic) to build the universe, and the site counts the AI tokens used.
Subscription (optional): payment is handled by Stripe, which receives your card and billing email and keeps invoices for as long as the law requires. The site never sees your card: it keeps your Stripe customer id, your plan and its period.

Your rights

Your account and its data are kept until you ask for them to be deleted. To see, correct or delete your data, write to contact@alxios.com. You can also complain to the CNIL (cnil.fr).

Terms of sale

Version of 27 October 2026. These terms apply to the Plus and Pro subscriptions taken out on this site by a consumer from the publisher (see the legal notice). Playing stays free: only extra AI tokens are paid for.

Plans. Plus: €5 a month for 200,000 AI tokens per period. Pro: €20 a month for 1,000,000 AI tokens per period. Prices in euros, VAT not applicable, art. 293 B of the French tax code. Tokens pay for requests to the AI (creating, editing or redrawing a universe); the number of universes shown is an estimate, as the cost of a request varies. Unused tokens don't carry over to the next period.

Ordering and payment. You subscribe from your account, after accepting these terms, then pay by card on Stripe's secure page. The subscription starts on payment and a receipt is emailed to you.

Duration and cancellation. The subscription is monthly and renews on the same date each month until you cancel it. You can cancel at any time from “Manage my subscription”: it stops at the end of the paid period, at no cost, and you keep your tokens until then. The current period isn't refunded, except on withdrawal.

Changing plans. Going from Plus to Pro is immediate: you only pay the price difference for the rest of the period, and the renewal date doesn't change. Going from Pro to Plus takes effect at the next renewal.

Right of withdrawal. You have 14 days after subscribing to withdraw, without giving a reason, by writing to contact@alxios.com. By subscribing, you ask for the service to start right away: if you withdraw, you are refunded within 14 days, minus an amount in proportion to the tokens already used (French Consumer Code, art. L221-18 and L221-25).

Use. Universes are generated by an AI from your request. You agree not to request hateful or sexual content or content targeting a person. A request the AI refuses still uses the tokens it consumed.

Availability. The service relies on providers (AI, music, hosting) and may be interrupted for maintenance or an outage. The publisher does its best to restore it quickly, without guaranteeing uninterrupted operation.

Changes to the plans. A change in a plan's price or content is announced by email at least 30 days before your renewal; you can cancel before it applies.

Complaints. Write to contact@alxios.com first. If the disagreement remains, you can use the consumer mediator for free: Another Castle.

Governing law. These terms are governed by French law. In a dispute, you can bring the matter before the court where you live.