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Terms of sale

Effective 9 November 2026. Seller: Harmonious, a sole proprietorship operating under that trade name. Contact: support@harmonious.science.

Harmonious is currently operated as a sole proprietorship. Sales are made by the individual operating the Harmonious trade name. The fastest contact for seller details, refunds or legal notices is support@harmonious.science. These terms are a template, not legal advice; have them reviewed for the jurisdictions you sell in.

Accounts

A hosted instance requires a username and password. You are responsible for keeping your password private and for activity under your account. Do not impersonate another person, share an account, or use the service to record someone without their consent. The operator may suspend or remove accounts that abuse the service or put other users at risk. Account deletion is not automated in this release; contact support.

License

A purchased key grants one person a personal, non-transferable license to use the official build on devices they control and, where the hosted service requires one, to analyze recordings under a single account. Do not share, resell or publish license keys. The key is verified offline; there is no subscription or renewal. The $20 self-hosted license includes 12 months of updates and email/community support from the purchase date. It does not include lifetime hosted storage or unlimited support.

Payment

Payments are processed by a self-hosted BTCPay Server checkout in cryptocurrency. We never receive wallet private keys, seed phrases or card data. The amount, currency, exchange rate and network fee are shown at checkout. Crypto payments are irreversible and may require network confirmations before a license is issued. The billing service stores the BTCPay invoice ID, amount/currency, payment status and issued key for support. Crypto transactions are public on-chain.

Delivery

The license key is shown on the checkout success page after BTCPay settles the invoice. Save it immediately; keep it private. If delivery fails, contact support with the BTCPay invoice ID.

Refunds

If a key was not used, contact us within 14 days of purchase for a refund. We may decline refunds where the key has been installed, where the payment was already settled on-chain, or where a refund is not required by applicable consumer law. Refunds, if approved, are returned to the sending wallet after network fees and exchange-rate differences. Nothing here limits mandatory statutory rights.

No medical claims

Harmonious is a voice-training tool, not a medical device. It does not diagnose, treat or guarantee a voice outcome, a gender presentation, passing, or how any listener will perceive you. Stop exercises that cause pain, strain or hoarseness and seek qualified professional advice when needed.

Support, availability and changes

Support is provided on a reasonable-effort basis. A self-hosted or hosted instance may be unavailable during maintenance, upgrades or outages. We may update the product and these terms; the version published with a release applies to that release. The operator of a hosted instance is responsible for its availability, backups and data handling.

Privacy

See the privacy policy for data handling, account access, crypto payment visibility and deletion.