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Inkpilot

Terms of Use

The rules for using Inkpilot, written to be easy to read.

Effective November 13, 2026

1. The basics

These Terms of Use are an agreement between you and Henry MacLane ("we," "us," "our"), the developer and publisher of Inkpilot. They cover the Inkpilot iPhone app, the Inkpilot server the app uses, and this website (together, "Inkpilot").

By making an account or using Inkpilot, you agree to these terms and to our Privacy Policy. If you don't agree, please don't use Inkpilot.

2. Who can use Inkpilot

  • You must be at least 13 years old.
  • If you're under 18, you need permission from a parent or guardian. They agree to these terms for you and are responsible for how you use Inkpilot, including any purchases.
  • You can't use Inkpilot where the law doesn't allow it.

3. Your account

Claude features need an account. Plotting your own text, the virtual plotter, and handwriting fonts work without one.

  • Give accurate information when you sign up, including when you confirm your age.
  • Keep your password private. You're responsible for what happens in your account.
  • An account is for one person. Don't share it, sell it, or give it to someone else.
  • If you think someone else is using your account, email us right away.

4. Plans, subscriptions, and the free trial

The plans

  • Free: $1 of Claude usage each month. Fill, Write, and Letters work. Chat isn't included.
  • Plus: $49.99 a month, with $10 of Claude usage each month.
  • Pro: $99.99 a month, with $25 of Claude usage each month.
  • Studio: $199.99 a month, with $60 of Claude usage each month.

All paid plans include Chat. Prices are in US dollars. The App Store shows the price in your country and currency before you buy, and taxes may apply.

Billing and automatic renewal

  • Subscriptions are bought through your Apple Account and billed by Apple. We never see your payment details.
  • Paid plans renew automatically every month until you cancel. Apple charges your Apple Account for the next month within the 24 hours before the current period ends.
  • To avoid being charged for the next period, cancel at least 24 hours before the current period ends. You keep your plan until the end of the period you already paid for.
  • Cancel in iPhone Settings > your name > Subscriptions, or in the app on the Account tab under Manage or cancel subscription. Deleting the app or your Inkpilot account doesn't cancel a subscription.
  • If you switch plans, Apple decides when the change takes effect.

The free trial

  • Each paid plan starts with a 7 day free trial that includes $5 of Claude usage.
  • When the trial ends, your paid plan starts and Apple charges you for it, unless you cancel at least 24 hours before the trial ends.
  • Apple decides who can get a free trial. In general, each Apple Account can get one free trial for Inkpilot.

Refunds

Apple handles all payments, so refunds go through Apple under Apple's rules. You can ask Apple for a refund at reportaproblem.apple.com. We can't give refunds directly.

Price and plan changes

We may change our plans or prices in the future. If the price of your subscription goes up, Apple will let you know before it applies, as Apple's rules require.

5. Claude usage and limits

  • Each plan includes an amount of Claude usage, shown in dollars. Every Claude request (reading a worksheet, writing something, or answering in chat) uses some of it, based on what that request cost to run. Bigger pages and longer conversations use more.
  • The Free plan resets at the start of each calendar month, by UTC time. Paid plans reset at the start of each billing period. The free trial's $5 covers the whole 7 day trial.
  • Unused Claude usage doesn't carry over. It isn't money in an account, has no cash value, and can't be transferred or refunded.
  • When you run out, Claude features stop until your usage resets or you upgrade. Plotting your own text still works.
  • We also limit how quickly requests can be sent, to keep Inkpilot working for everyone and to stop abuse.

6. AI features

  • Fill, Write with Claude, Letters, and Chat use Claude, an AI model made by Anthropic. The app asks before it sends your content to Claude for the first time.
  • AI answers can be wrong, incomplete, or out of date, even when they sound sure. Check everything before you plot it, turn it in, sign it, or send it. Don't rely on Inkpilot for medical, legal, financial, or safety advice.
  • Anthropic's Usage Policy applies to the AI features. Don't use Inkpilot to ask for anything that policy doesn't allow. Claude may decline some requests.
  • If you see an answer that's harmful or wrong, you can report it in the app.
  • In Chat, Claude can control your plotter, but it asks for your approval before it moves the machine. You're responsible for the actions you approve.

7. Using Inkpilot responsibly

You're responsible for what you plot and how you use it. In particular:

  • Follow your school's and workplace's rules, including rules about using AI for homework, tests, applications, or other work. If AI help isn't allowed, don't use Inkpilot for that work.
  • Don't use Inkpilot to forge signatures or handwriting, make fake documents, or make anyone think something was written by a person who didn't write it.
  • Only make handwriting fonts from your own handwriting, or from someone else's with their permission.
  • Don't use Inkpilot for anything illegal, harmful, or harassing, or anything that violates someone else's rights, like their copyright or privacy.
  • Only upload photos and text you have the right to use.
  • Don't try to get around plan limits, share accounts, reverse engineer or overload our server, or use our server any way other than through the app.

8. Your content

You own the photos and text you put into Inkpilot. You give us permission to handle that content only as needed to run Inkpilot, like sending it to Claude to get your answer and sending the answer back. As far as we're concerned, you can use what Claude writes for you, as long as you follow these terms and Anthropic's policies. The Privacy Policy explains what we store.

9. Your plotter and hardware

  • Inkpilot sends movement commands to a machine you own. You use your plotter, pens, paper, computer, and the Inkpilot Bridge at your own risk.
  • Before plotting, check your setup: the right plotter model, the pen heights, where the paper is, and that nothing is in the way. Keep hands, hair, and loose things clear while it moves, and keep an eye on it while it runs.
  • For a new setup, start with the built in tests, like the 1 inch square.
  • We aren't responsible for damage to your plotter, pens, paper, desk, or anything else, or for plots that come out wrong.
  • Inkpilot isn't made by, affiliated with, or endorsed by Evil Mad Scientist Laboratories (the maker of the AxiDraw) or any other plotter maker. Follow your plotter maker's instructions.
  • The Inkpilot Bridge is free software that you run on your own computer or Raspberry Pi. It's provided as is.

10. Apple's EULA

The Inkpilot app is licensed to you, not sold. Apple's standard Licensed Application End User License Agreement also applies to your use of the app. These terms add to it.

11. Changes to the service

We work to keep Inkpilot running, but it may sometimes be slow or unavailable. We may add, change, or remove features, including which Claude model is used. We may also stop offering Inkpilot.

12. Ending your account

You can delete your account any time in the app at Account > Profile > Delete account, or by emailing us. We may suspend or close your account if you break these terms, misuse Inkpilot, or if the law requires it. The parts of these terms that should keep applying after your account ends, like sections 13 and 14, still apply.

13. No warranty

Inkpilot is provided "as is" and "as available." To the fullest extent the law allows, we make no warranties of any kind, express or implied, including warranties that Inkpilot will be accurate, reliable, error free, uninterrupted, or fit for a particular purpose. We don't promise that AI answers will be correct or that plots will come out the way you expect.

14. Limitation of liability

To the fullest extent the law allows:

  • We aren't liable for any indirect, incidental, special, consequential, or punitive damages, or for lost data, lost profits, or damage to equipment, that come from your use of Inkpilot, even if we were told they could happen.
  • Our total liability for any claim about Inkpilot is limited to the amount you paid for Inkpilot in the 12 months before the claim.

Some places don't allow these limits, so they may not fully apply to you.

15. Governing law

These terms are governed by the laws of the United States and the State of Connecticut, not counting any rules that would apply the laws of another place. If you live somewhere that gives you consumer protections these terms can't take away, you keep those protections.

16. Changes to these terms

We may update these terms. We'll post the new version on this page with a new effective date. If you keep using Inkpilot after that, you agree to the updated terms. If you don't agree, stop using Inkpilot and delete your account.

17. General

  • If part of these terms can't be enforced, the rest still applies.
  • If we don't enforce something right away, we haven't given up the right to enforce it later.
  • You can't transfer your account or these terms to anyone else.
  • These terms, the Privacy Policy, and Apple's EULA are the whole agreement between you and us about Inkpilot.

18. Orders and shipping

This section covers buying a plotter from us on our store. App subscriptions are covered in section 4 and go through Apple. Plotter orders don't go through Apple.

  • Plotter orders are checked out through Shopify. Prices are in US dollars.
  • We only ship to addresses in the United States.
  • Shipping is free on every order.
  • Sales tax is added at checkout where required.
  • Returns and refunds for plotter orders follow our return and refund policy, and delivery follows our shipping policy. The Apple refund process in section 4 is only for app subscriptions.

19. Contact

Questions about these terms? Email support@inkpilot.co. Inkpilot is published by Henry MacLane.