Is a cancellation confirmation email enough proof?

It proves the request was received, not that billing stopped. Treat the cancellation as pending, and watch past the next renewal date on every card or account the merchant could bill.

If no charge appears, is my subscription definitely cancelled?

Not definitely. A missing charge is what an ended subscription looks like, but it is also what a late posting, a changed billing date or a charge moved to a replacement card looks like. The merchant’s own account page, read together with your statements, is stronger evidence than either one alone.

How long should I watch after cancelling an annual subscription?

Until the next yearly renewal date has passed. A quiet month tells you nothing about an annual plan, because it was never going to bill that month anyway.

How to check a cancellation actually stopped the charge

No single thing proves a subscription has stopped billing. A confirmation shows the request was received; a charge that does not appear is consistent with an ending, but it is not proof of one. What you can establish is narrower and more useful: whether the charge has come back.

Cancellation flows are designed to be reassuring, but a “you’re all set” screen only tells you the request went through. Whether the money stops leaving your account is a separate question — and a statement can answer only half of it.

What each kind of evidence tells you

A cancellation confirmation, by email or on screen, tells you the merchant received the request. It does not tell you billing has stopped.
The merchant’s own account page showing no active plan is the merchant’s record of your subscription. Read the date on it: access often runs to the end of the period you already paid for, and a final charge before that date can be legitimate.
A charge after your renewal date is proof that billing has not stopped — or that you have a second, separate subscription with the same company.
No charge after your renewal date is consistent with the plan having ended, but it is not proof. The charge may post late, bill on a different day, or move to a new card after yours was replaced.

Why a missing charge is not proof

A statement records charges that happened. It cannot record a charge that did not — so an empty month can mean the subscription ended, or that the bill has not posted yet, or that it landed on a card or account whose statement you did not check. A gap in your statements proves even less: a missing month could hold the very charge you are looking for.

What to check, and for how long

Note the merchant name and the amount exactly as they appear on your statement, and your renewal date.
Watch past the renewal date on every card or account the merchant could bill — including a replacement card.
For a monthly plan, watch at least two billing cycles. A single quiet month is easy to misread.
For an annual plan, the only meaningful check is the next yearly renewal date. A quiet month tells you nothing about a plan that was never going to bill that month, so set a reminder.

If the charge appears anyway

Check whether you cancelled in the right place (app store vs website vs the merchant directly).
Look for a second, separate subscription with the same company.
Contact the merchant with the date you cancelled and ask them to stop and, if appropriate, refund it.

Bank websites and merchant flows change. If something here has drifted, email lowscoutsupport@gmail.com — we reply within 2 business days.