Terms of service
Last updated October 27, 2026
These terms cover the Notch Kit, the Notch app, the plan that follows the first year, and the list you can join on wearnotch.com before the Kit ships. Ordering the Kit or using the app means you agree to them. The part about the list applies when you join it.
Who we are
Notch is made by Notch Interfaces Inc., a Delaware corporation based in Brooklyn, New York. In these terms, “we” and “Notch” mean Notch Interfaces Inc., and “you” means the person using the site, the Kit or the app.
Who can use Notch
You must be at least 18 to order the Kit or use the app.
Joining the list
Before the Kit ships, you can leave your email on wearnotch.com to hear when pre-orders open. Joining the list is not an order. It costs nothing, and it does not commit you or us to a sale.
We use your address to email you about pre-orders and the launch. Every email has an unsubscribe link, and you can also write to connect@wearnotch.com to leave the list.
A place on the list does not reserve a Kit or a price. We may give people on the list early access to pre-orders; if we do, we say so in the email that opens them.
Pre-orders
When pre-orders open, the checkout shows what you pay when you place one, whether that is the full price or a deposit, and the estimated ship window. A deposit counts toward the price of the Kit.
You can cancel a pre-order at any time before your Kit ships and get back everything you paid, to the payment method you used, within 10 business days.
The ship window is an estimate. It depends on manufacturing and can move. If it moves, we email you the new window, and you can cancel for a full refund.
The price you pre-order at is the price you pay, and it includes the first year of the app.
We may cancel a pre-order, for example if we cannot make the Kit as described. If we do, we refund everything you paid.
Buying the Kit
The Kit is 4 motion sensors for the upper arm, the thigh, the chest and the back of the hip, breathable mesh straps, a sensor t-shirt that holds the chest sensor, a fast charging station with a USB cord and a carrying pouch.
The Kit costs $400. The price includes the first year of the app. Shipping is free. Sales tax is added at checkout where it applies. Payments are handled by our payment processor; we do not see or keep your full card number.
An order is accepted when we confirm it by email. We ship within the United States for now. Delivery times are shown at checkout, and the Kit is yours, and at your risk, once it is delivered.
The app and the plan
The app runs on iPhone. It scores every rep for range of motion, bar speed and time under tension, writes feedback, replays reps in 3D and keeps your history. Some of it works without the sensors, with a smaller set of features.
The first year of the app comes with the Kit. It starts when you first pair the sensors, or 30 days after delivery, whichever comes first.
After the first year the app continues on a yearly or monthly plan, at the price shown in the app before you choose. The plan renews automatically until you cancel it. We email you before the first paid renewal, and we tell you at least 30 days ahead if the price changes.
You can cancel the plan at any time, in the app or in your iPhone settings if you subscribed through the App Store. Canceling stops the next charge, and you keep the plan until the end of the period you paid for. Part of a paid period is not refunded, except where the law requires it.
Without a plan, you keep your history and can export it, and the features that work without the sensors stay on.
Returns
You can return the Kit within 30 days of delivery for a refund of the full $400. Write to connect@wearnotch.com and we send you a prepaid return label. Send back everything that came in the box, in the condition you would expect after trying it out.
The refund goes to the payment method you used, within 10 business days of the Kit reaching us. The app year that came with the Kit ends when the return is refunded.
Warranty
The sensors and the charging station are covered for 1 year from delivery against defects in materials and workmanship. The straps, the t-shirt and the pouch are covered for 90 days. If a part fails in that time, we repair or replace it, or refund it if we can do neither.
The warranty does not cover normal wear, accidents, misuse, use deeper than the sensors are rated for, or repairs made by anyone other than Notch.
Apart from that warranty, the Kit and the app are provided as they are, to the extent the law allows. We do not promise that the app will always be available or free of errors.
Your account
The app needs an account, which you open with Sign in with Apple or an email address.
Keep your sign-in to yourself, and tell us if you think someone else has used your account.
When you close your account, we delete your data as the Privacy policy describes.
What the scores are
The scores and the written feedback are computed from the movement the sensors read. They are training feedback, not medical advice. Notch is not a healthcare provider. If you are injured or under treatment, ask a doctor before you train.
Charge the sensors only with the charging station and cord in the Kit. Stop wearing a strap if it irritates your skin. The sensors are waterproof to 1 meter; do not take them deeper.
Using the app and the site
You may use the app, and the software in the sensors, for your own training. You may not copy, resell, reverse engineer or take apart that software, scrape the site, or use Notch to break the law.
Notch, the Kit, the app, the site and the names and marks on them belong to Notch Interfaces Inc. Buying the Kit does not transfer any of that to you.
If you send us ideas or feedback, we may use them without owing you anything.
Changes to the app
We update the app to fix problems, keep it secure and add features. We may also change or remove features.
If a change removes something central to a plan you paid for, you can cancel and get a pro-rated refund for the unused part of the period.
Ending the agreement
You can stop using Notch at any time, and close your account in the app or by writing to connect@wearnotch.com.
We may suspend or close an account that breaks these terms. We tell you first, unless the law or someone's safety calls for acting at once. If we close an account that has not broken these terms, we refund the unused part of any paid plan.
Liability
To the extent the law allows, Notch is not liable for indirect or consequential losses, such as lost profits or lost data, and our total liability to you is limited to what you paid us in the 12 months before the claim.
Nothing in these terms limits liability for death or personal injury caused by negligence, for fraud, or any other rights you have under consumer law that cannot be limited.
Disputes and governing law
If something goes wrong, write to us first at connect@wearnotch.com and give us 30 days to put it right.
These terms are governed by the laws of the State of New York. Disputes go to the state and federal courts in New York, New York, unless the law where you live gives you the right to bring them in your own courts.
If you buy from outside the United States, you keep the protection of the consumer law where you live.
Changes to these terms
If we change these terms, we post the new version here with a new date. If a change matters to you, we also email you at least 30 days before it applies.
If you keep using Notch after a change applies, the new terms apply to you. If you do not agree, you can stop using Notch and cancel the plan.
Contact
Notch Interfaces Inc., Brooklyn, New York, USA. Email connect@wearnotch.com.