Terms of Service

Last updated: 6 October 2026

By signing in to or using Thumbsmith (thumbsmith.app) you agree to these terms. If you do not agree, please do not use the service.

The service

Thumbsmith generates and edits YouTube thumbnails using AI models and an in-browser editor. AI output is probabilistic: results vary, may contain imperfections, and are not guaranteed to suit any particular purpose or to improve your views or click-through rate.

Your account

You sign in with Google and are responsible for activity on your account. You must be at least 13 years old, and old enough to form a binding contract where you live or have a parent or guardian’s permission.

Your content and ownership

You keep ownership of what you upload and of the thumbnails you generate, as between you and us. You give us a limited license to store and process your content solely to operate the service for you (including sending it to our AI providers to generate images). You are responsible for having the rights to anything you upload, such as faces, logos and third-party artwork, and for how you use the output. Because AI output can resemble existing works, review it before publishing.

Acceptable use

Do not use Thumbsmith to:

• create unlawful, hateful, sexually explicit, or deceptive content, or content that infringes others’ rights;
• upload images of people without their permission, or impersonate someone;
• attempt to bypass limits, scrape the service, probe or disrupt it, or resell access.

We may remove content or suspend accounts that break these rules.

Plans, credits and billing

• Free: a daily allowance of watermarked previews plus a small starting balance of HQ credits.
• Pro and Studio are monthly subscriptions that renew automatically until cancelled, with a monthly allowance of HQ renders. Unused monthly renders do not roll over.
• Credit packs are one-time purchases that do not expire.
• Prices are shown on the pricing page and charged in USD through Stripe. Taxes may apply.
• You can cancel a subscription any time from Manage billing; access continues until the end of the paid period.

Refunds

• If a generation fails, the credit or daily slot is returned automatically.
• If you were charged in error, charged twice, or a technical fault stopped the service from working, contact us within 14 days of the charge and we will refund you.
• Otherwise, credits and subscription periods already used are not refundable, but we are happy to review genuine problems case by case: write to hello@thumbsmith.app.

Availability and changes

We work to keep Thumbsmith available but provide it “as is” and “as available”. We may change features, limits, models or pricing; for paid plans we will give notice before a price change takes effect.

Liability

To the extent the law allows, Thumbsmith is not liable for indirect or consequential losses (such as lost revenue or views), and our total liability for any claim is limited to the amount you paid us in the 12 months before it arose. Nothing here limits rights you have under consumer law that cannot be waived.

Ending your account

You can delete your account at any time from your Profile. We may suspend or end accounts that violate these terms.

Contact and changes

Questions: hello@thumbsmith.app. We may update these terms; continued use after the date above means you accept the update. See also our Privacy Policy.