Terms
The agreement between you and Crumple, in plain words. Using Crumple means you agree to it.
Last updated November 11, 2026
Who you're dealing with
Crumple is made and run by Taita Nakayama — one person, working as a sole proprietor for now, not a company. Below, “I” and “me” mean Taita, and “Crumple” means the service. If Crumple is moved into a company, these terms will be updated to name it. You can reach me at taita@nakayama.io.
What Crumple is
A to-do board — three columns and a basket — and a connector that lets an AI assistant you choose read and change your notes. You sign in with a Google account. To subscribe you need to be 18 or older, or to have a parent's or guardian's permission; Crumple is not for children under 13.
Subscription and free trial
There is no free plan. Crumple costs $4.99 a month or $39.99 a year in US dollars, and either way it starts with a 7-day free trial. At checkout the price may be shown in your local currency, and tax may be added depending on where you live.
- A card or other payment method is needed to start the trial. Nothing is charged during the 7 days.
- The free trial is offered once per account. If you subscribe again after cancelling, there is no second trial and you are charged when you subscribe.
- If you do not cancel before the trial ends, the subscription starts and you are charged for the plan you chose.
- It then renews automatically, every month or every year, until you cancel.
- You can cancel, switch between monthly and yearly, or change your card at any time from Manage subscription in Crumple's account box. Cancelling stops the next charge; you keep access until the end of the trial or of the period you have paid for.
- If the price goes up, I will email you at least 30 days before it applies to you, and it will apply only from your next renewal.
Payment goes through Stripe
Crumple subscriptions are sold through Link, a Stripe service. That makes Stripe the merchant of record — the seller, as far as the payment is concerned. It takes your payment details, charges you, works out and collects any sales tax or VAT, emails your receipts, and handles billing questions and payment disputes. Link's own terms and privacy policy apply to the payment and are shown to you at checkout. The charge appears on your statement starting with LINK.COM, and you can also see your orders and manage the subscription at link.com.
What you are paying for — Crumple itself — is provided by me, and these terms cover that.
Refunds
Cancelling stops future charges. It does not refund the period you are in, and you keep access until that period ends. If you were charged by mistake, or something went wrong on my side, email taita@nakayama.io and I will put it right; you can also ask Link's support for a refund. None of this takes away a right to cancel or to a refund that the law where you live gives you.
If a payment fails, or you cancel
When a payment fails, or a trial or subscription ends, your board locks until the subscription is active again — in the app and for any assistant you have connected. Your notes are not deleted; they are there when you come back. If you would like a copy of them without resubscribing, email me.
Your notes are yours
You own what you write. You give Crumple permission to store it, back it up, and show it to you and to any assistant you connect — only so that the service can work.
AI assistants
An assistant you connect acts for you. What it reads, adds, changes or deletes on your board is done at your request, and you are responsible for it as though you had done it yourself. Assistants make mistakes. The company behind the assistant has its own terms and privacy policy, and those cover what it does with your notes.
Fair use
Do not use Crumple to break the law, try to get into anyone else's board or account, probe, overload or disrupt the service, or resell it. I may suspend or close an account that does.
How reliable it is
I work to keep Crumple running and your notes safe, but it is a small service run by one person and it is provided as it is. I cannot promise it will always be available or free of mistakes, so do not make it the only copy of anything you cannot afford to lose.
Crumple will change over time. If I ever shut it down I will give you at least 30 days' notice by email, a way to get your notes out, and a refund for any time you have paid for and will not get.
Liability
As far as the law allows: Crumple comes without warranties of any kind; I am not liable for indirect or consequential losses such as lost profits, lost data or lost business; and my total liability to you for anything to do with Crumple is limited to what you paid for it in the 12 months before the claim. Some places do not allow limits like these for consumers. Where that is so they apply only as far as the law permits, and the rights the law gives you are not affected.
Ending things
You can stop using Crumple whenever you like: cancel from Manage subscription, and email me if you want your account deleted. I can end your access if you seriously or repeatedly break these terms.
Law
These terms are governed by the laws of the State of California, USA. If you are a consumer living somewhere else, you keep any protections your local law says cannot be signed away, and you can bring a claim in your local courts where that law allows it.
Changes to these terms
If these terms change in a way that matters, I will change the date at the top and tell you by email or in the app at least 30 days before the change applies. If you keep using Crumple after that, the new terms apply. If you do not agree with them, cancel before then.