Terms | Riku

Effective 10 November 2026.

Who you're agreeing with

Riku is provided by Riku AI LLC, a Wyoming limited liability company ("Riku", "we", "us"). By making an account or using Riku, you agree to these terms and to our Privacy page. If you use Riku for a company, you're agreeing for that company and confirming you're allowed to.

Your account

You must be at least 18 to make an account.
You sign in with a link we email you. There are no passwords. Keep your email account secure: anyone who can read it can sign in as you.
You're responsible for what happens in your workspace, including what the people you invite do.
Give us a real email address and keep it up to date.

Your content stays yours

You own what you put into Riku: your instructions, documents, pasted text, links you point it at, and the conversations your visitors have with your apps ("your content"). We don't claim ownership of it.

You give us permission to store, copy and process your content, and to send it to the AI model provider you've chosen, only as needed to run your apps and provide the service. You confirm you have the right to use your content that way.

We don't use your content to train AI models.

Your apps and your visitors

You decide what your apps say and who can open them. You're responsible for the apps you publish.
People who open your app through a link or a chat widget are your visitors. You're responsible for telling them they're talking to an AI, and for telling them how you handle what they share. Our Privacy page explains what we do for you.
If your app collects visitors' emails or other details, you're responsible for having a lawful reason to collect them.
When someone on your team steps into a conversation, that's you talking, not Riku.

AI answers can be wrong

Riku apps answer from the context you give them, but AI models make mistakes. They can be out of date, incomplete or plain wrong. Output is yours to check before you rely on it or let your visitors rely on it. Don't use Riku as the only source for medical, legal, financial or safety decisions, and don't let an app promise anything you wouldn't stand behind.

Using your own model key

You can add your own OpenAI, Anthropic, Google or OpenRouter key. Requests made with it go to that provider under your own account with them. Their terms apply, and so do their charges, which are yours. Your key is stored encrypted and is used only to run your apps.

What you can't do

Break the law, or help anyone else to.
Put unlawful content into Riku, or build apps that deceive, harass, defame or impersonate a real person or business you don't represent.
Use an app to produce content that is harmful, hateful or abusive, or that sexually exploits children.
Upload content you don't have the right to share, or content that contains malware.
Abuse the AI: try to make it break the rules of the model provider behind it, or use it to send spam or run automated attacks.
Abuse other users or their apps, or try to get into accounts or data that aren't yours.
Get round plan limits, overload the service, scrape it, or reverse engineer it, except where the law lets you.
Resell Riku, or use it to build a competing product.

If an app breaks these rules, we may take it offline or suspend the account, and we'll tell you why when we can.

Plans and payment

Riku has two plans: Pro Builder at $29 a month or $290 a year, and Advanced Builder at $49 a month or $490 a year. You choose monthly or yearly billing when you subscribe. Prices are in US dollars. What each plan includes is shown on our home page and in the app. Those are the only plans.
Paid plans are billed in advance by Stripe, for each month or each year depending on the billing period you chose, and renew at the end of each period until you cancel. By subscribing you authorise Stripe to charge your payment method at the start of each period.
You can cancel at any time from Billing in the app. Cancellation takes effect at the end of the period you've already paid for, and you keep your plan until then.
Fees are non-refundable, including for part-used billing periods, except where the law requires a refund.
Prices exclude taxes. Where sales tax, VAT or a similar tax applies, it's added to the price shown at checkout.
If we change what a paid plan costs, we'll email you at least 30 days before the change affects you. If you don't want the new price, you can cancel before it starts.
If a payment fails, we'll tell you and give you a short time to fix it before your workspace is paused. A paused workspace keeps its data; apps and share links stop answering until you choose a plan and pay.
Each plan has limits, such as a number of apps, included messages each month and how long analytics are kept. They're listed in the app.
Accounts created before these terms that don't have a paid plan are paused in the same way.

Ending things

You can stop using Riku and close your account at any time. To have your data deleted, write to [email protected]; see the Privacy page for what happens next.

We may suspend or close an account that breaks these terms or puts people or the service at risk. Where we can, we'll warn you first and give you the chance to fix it. We may also close an account that has been inactive for a long time, after emailing you.

When an account closes, your right to use Riku ends. The parts of these terms that are meant to continue (such as ownership, disclaimers, limits on liability, indemnity and governing law) continue.

The service as it is

We work hard to keep Riku running and your data safe, but we provide it "as is" and "as available". As far as the law allows, we don't give any warranties, whether express or implied, including that the service will be uninterrupted, error-free or fit for a particular purpose. We don't promise AI output will be accurate. We may change or remove features; if a change takes away something important on a plan you pay for, we'll tell you first.

Limits on our liability

As far as the law allows:

Riku isn't liable for indirect, incidental, special or knock-on losses, such as lost profits, lost revenue, lost data or loss of goodwill, even if we were told they were possible.
Our total liability to you for anything connected with Riku is limited to the fees you paid us in the 12 months before the event that gave rise to the claim.

Nothing in these terms limits liability that the law doesn't allow us to limit.

If you misuse Riku

You'll cover the reasonable costs, losses and legal fees that we or other people suffer from a claim made because of your content, your apps, your visitors' use of them, or your breach of these terms or the law. We'll tell you about the claim promptly and let you help with the response, and you can't settle it on our behalf without our agreement.

The law that applies

These terms are governed by the laws of the State of Wyoming, USA, without regard to its conflict-of-laws rules. Any dispute about them or about Riku will be brought in the state or federal courts located in Wyoming, and you and we both agree to those courts. Before starting a claim, please write to [email protected] and give us 30 days to try to sort it out.

Changes to these terms

We may update these terms. If a change matters, we'll update the date at the top and email account holders at least 30 days before it takes effect. If you keep using Riku after that, you accept the new terms. If you don't agree, you can close your account before then.

The rest

These terms, together with the Privacy page, are the whole agreement between you and Riku about the service. They replace anything earlier.
If part of these terms turns out not to be enforceable, the rest still applies.
If we don't enforce something straight away, that doesn't mean we've given up the right to.
You can't transfer your account or these terms to anyone else without our agreement. We can transfer ours as part of a merger, sale or reorganisation.

Contact

Questions about these terms: [email protected].