Refund Policy

The Free plan costs nothing, so there's nothing to refund. The Starter and Pro plans are subscriptions, billed monthly or yearly, sold by Polar Software, Inc. (Polar), acting as merchant of record. Polar is the seller of record for the purchase: it takes the payment, handles tax and invoices, and pays out refunds. Refunds go back to the payment method you used.

If you buy Starter or Pro as a consumer, you can withdraw within 14 days of the first payment of that subscription (for consumers in the EU this is also your statutory right). You don't need to give a reason. If you withdraw from your account's first paid subscription, whatever its plan or billing period, you get what you paid for it back in full, even if you've already used it, and your account goes back to the Free plan. Upgrading that subscription within those 14 days doesn't make it a new one. If you withdraw from a later subscription, we refund what you paid less a proportionate amount for the days you already had the plan. A model withdrawal form is available on request from support@knowtarium.com, but a short email saying you withdraw is enough.

You can cancel Starter or Pro at any time from the app's plan settings, which open Polar's customer portal. Cancelling stops the next renewal: you keep your plan until the end of the month or year you've paid for, and then your account goes back to the Free plan. Nothing is deleted, and you can always read, export and delete your notes.

Outside the withdrawal period, we don't refund the rest of a period you've already started, since you keep your plan until it ends. The exceptions are a yearly plan after its first year, a charge made by mistake, and a shutdown of Knowtarium (all below).

Deleting your account is different: it ends your subscription at once, because we cancel it with Polar before anything is deleted. The rest of the period you've paid for isn't refunded automatically, but the 14-day withdrawal right for consumers still applies. If your yearly plan is past its first year, ask us to end it with a refund (see below) before you delete your account. If you ever started a checkout and Polar can't be reached at that moment, the deletion is refused, nothing is deleted, and you can try again. If the deletion stops after your subscription was cancelled, it stays cancelled and you can try again. While the deletion runs, you can't start a checkout, and if you pay for a plan in a checkout you left open (for example in another tab), we cancel that subscription at once and refund it.

Once a subscription has been billed yearly for a full year (counted from the start of its first yearly billing period), you can end it at any time and get back the unused whole months of the year you've paid for. Email support@knowtarium.com from your account's email address. We end the subscription and refund one twelfth of that year's payment for each whole month left; a month that has already started isn't refunded. Your account then goes back to the Free plan.

An upgrade (from Starter to Pro, from monthly to yearly billing, or both at once) applies right away, and the difference in price is charged then. Every other change, such as a downgrade from Pro to Starter or a switch from yearly to monthly billing, applies at your next renewal: you keep your current plan until then, and the rest of the period you've paid for isn't refunded or credited.

If you were charged twice, charged after you cancelled or deleted your account, or charged for something you didn't get, tell us and we refund the amount in full.

If we ever shut Knowtarium down, we tell you by email at least 30 days in advance, with time to export your notes. We stop charging for paid plans, and we refund any payment that covers time after the shutdown.

Email support@knowtarium.com from your account's email address. You can also use the receipt Polar emailed you, or contact Polar's support for the transaction at support@polar.sh.

This page summarizes the refund terms; the governing text is in our Terms of Service. Knowtarium is operated by Magentix Studio UG (haftungsbeschränkt), Kaiserring 14-16, 68161 Mannheim, Germany.