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Terms of service

Last updated 6 October 2026

These terms govern your use of Merlin, an AI assistant for group chats and direct messages, the website at atmerlin.com, and Merlin’s apps for iPhone, Android and the Mac (together, the “Service”). The Service is provided by Plarza (“we”, “us”), a sole trader business based in New South Wales, Australia. By using the Service, you agree to these terms, to our privacy policy, and to the end user licence agreement for Merlin’s software.

Eligibility and accounts

You must be at least 18 years old to use the Service. You must give accurate information when you create an account, and you are responsible for all activity under it. Tell us promptly if you believe your account has been accessed without your permission.

Adding Merlin to a chat

The person who adds Merlin to a chat is its owner. As owner, you must have the right to add Merlin to that chat under the chat platform’s rules. Merlin stores every message in the chats it is in, and posts a notice saying so when it joins. On Discord, it also stores the messages already in the channels it can see. Requests made by any member of a chat count against the owner’s allowance. The owner decides which members are trusted and which features are enabled in the chat.

Acceptable use

You must not use the Service to:

  • break the law or infringe anyone’s rights;
  • harass, threaten, deceive or send unsolicited messages to anyone;
  • access information you are not authorised to access, including other people’s data;
  • circumvent the Service’s usage limits, permissions or sandboxes, or interfere with its operation;
  • resell or sublicense access to the Service; or
  • develop a competing product.

Your content

You retain ownership of the messages, files and other content you provide to the Service, and of the output Merlin produces for you. You grant us a licence to store, copy and process that content only as needed to provide the Service. You are responsible for your content, and for having the right to share it with the Service.

AI output

Merlin’s responses are generated by AI and may be inaccurate, incomplete or out of date. Verify anything important before relying on it. Merlin’s responses are not legal, medical, financial or other professional advice. Merlin asks for confirmation before it sends, creates or changes anything on your behalf, and you are responsible for the actions you confirm.

Merlin also works without being asked: it reviews each chat to keep its notes up to date and, on Pro and Ultra, may look through the apps you connect, set up reminders and checks for you, and message you about what it finds. This work counts against your allowance.

Connected apps and other services

When you connect an app, you authorise Merlin to act in it on your behalf, within the permissions you set. Your use of a connected app, and of the chat platforms Merlin operates on, remains subject to that provider’s terms. We are not responsible for services we do not operate. You may disconnect an app at any time.

Plans and payment

  • The Service is offered on a Free plan, Pro (US$19 a month or US$199 a year), and Ultra (US$99 a month or US$999 a year), as described on our pricing page. Plans are bought and changed on the website, not in the iPhone and Android apps.
  • Payments are processed by Polar, which acts as merchant of record, and are subject to Polar’s terms. Paid plans are billed in advance for the selected monthly or yearly period and renew automatically until cancelled.
  • Usage is measured by what each request costs us to process. Unused allowance does not carry over. When your allowance is exhausted, Merlin stops responding until the next monthly usage reset, including on yearly plans.
  • You may cancel at any time. Your plan remains active until the end of the period you have paid for. Payments are non-refundable, except where the law requires otherwise.
  • We will give you at least 30 days’ notice of any price increase that affects you.

Changes to the Service

We may add, change or remove features of the Service. We do not guarantee that the Service will be available at all times or free of errors.

Suspension and termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access if you breach these terms, or where required to protect the Service, its users or others. We will tell you why, unless the law prevents us.

Consumer guarantees

Our services come with guarantees that cannot be excluded under the Australian Consumer Law, and you may have similar rights under the laws of the country where you live. Nothing in these terms excludes, restricts or modifies those rights.

Disclaimer and limitation of liability

Subject to the section above, the Service is provided “as is” and “as available”, without warranties of any kind. To the extent permitted by law:

  • we are not liable for any indirect or consequential loss, or for loss of data, profits or revenue;
  • where our liability for failure to comply with a consumer guarantee can be limited, it is limited to supplying the services again or paying the cost of having them supplied again; and
  • our total liability to you in connection with the Service is limited to the amount you paid us in the twelve months before the claim arose.

Governing law

These terms are governed by the laws of New South Wales, Australia. You and we submit to the non-exclusive jurisdiction of the courts of New South Wales.

Changes to these terms

We may update these terms. If a change is material, we will notify account holders by email at least 30 days before it takes effect. Continuing to use the Service after that date means you accept the updated terms.

Contact

Plarza, New South Wales, Australia
merlin@plarza.com