Please read these terms before using the Wuffi web app (app.wuffi.app). By signing in or using the service, you agree to these terms and thePrivacy policy。 Effective: October 28, 2026 (on publication)
The service
Wuffi is an online writing tool provided by Gary Studio, including Markdown editing, cloud documents, version history, voice input, AI revision suggestions and file import and export. We may improve or change features at any time; if we remove a major feature you pay for, we will tell you in advance.
Account
You sign in with a Google account. Keep your Google account secure; you are responsible for all activity under it. Each person may use only one account for the free trial. You must be at least 16; minors must have a parent or guardian’s consent.
Free trial
New accounts get a 7-day free trial with every feature and an allowance of 15 voice minutes and 50k AI tokens a day. No credit card is needed and you will not be charged when it ends. After the trial you can still edit, save and export documents; AI and voice require a subscription. Signing up again after deleting an account does not start a new trial.
Subscriptions and payments
Plans: US$15 monthly or US$144 yearly. Both include the same allowance, 900 voice minutes and 9M AI tokens a month, reset monthly; unused allowance does not carry over.
Auto-renewal: your subscription renews at the then-current price at the end of each period until you cancel.
Payment processing: Polar processes payments as merchant of record, and Polar’s terms also apply to your payment. Prices are in US dollars and tax may be added depending on where you are.
Price changes: we will give at least 30 days’ notice, and new prices apply from your next renewal period.
Cancelling your subscription
You can cancel anytime under “Manage subscription” on the account page. It will not renew, and you can keep using Wuffi until the paid period ends.
Refunds
If you are not satisfied within 14 days of your first subscription, email support@wuffi.app for a full refund.
Later renewal periods are not refunded pro rata; after cancelling, you can use the service until the period ends.
Duplicate charges and charges caused by system errors are always refunded in full.
If the law where you live gives you more protection (for example consumer protection law), the law prevails.
Allowance and fair use
When your allowance runs out, AI and voice pause until the next reset; documents keep working normally. To keep the service reliable we may limit bursts of requests, and AI or voice may be briefly unavailable when overall usage is unusually high.
Your content
You own the documents you write, the images you upload and the files you import. You allow us to store, process and transmit this content (for example saving it to the cloud, sending it to AI or converting formats) only as needed to provide the service. We do not use your content to train AI models or for advertising. You can download all your data or delete your account at any time.
AI output
AI suggestions come from third-party models and may be inaccurate, incomplete or similar to others’ content. You decide whether to use them and are responsible for what you adopt; please check before publishing. To the extent the law allows, the AI suggestions you receive are yours to use.
Acceptable use
You must not:
Use Wuffi for illegal activity, or to create or store content that infringes others’ rights, harasses, promotes hatred or sexually exploits minors.
Try to break into, disrupt or get around the service’s security or allowance limits.
Access the service in bulk with automated tools, or resell or rent out your account or allowance.
If you break these rules, we may suspend or close your account.
Availability
We work to keep the service reliable and back it up daily, but it is provided “as is”, without any guarantee that it will be uninterrupted or error-free. Please download backups of important documents regularly.
Limitation of liability
To the extent the law allows, we are not liable for indirect, incidental or consequential losses from using or being unable to use the service, and our total liability is limited to what you paid Wuffi in the 12 months before the event. This does not limit liability that cannot be excluded by law.
Termination
You can delete your account at any time. If we decide to shut down the service, we will give at least 30 days’ notice so you can download your data, and refund subscription fees for any unused period.
Changes to these terms
If we make significant changes, we will notify you by email or on the website at least 14 days before they take effect. Continuing to use the service after that means you accept the new terms.
Governing law and jurisdiction
These terms are governed by the laws of the Republic of China (Taiwan). Disputes arising from these terms or the service are subject to the Taiwan Taipei District Court as the court of first instance, unless mandatory consumer protection law where you live provides otherwise.