How do I change or cancel my plan?

Change your plan in the dashboard; cancel it in the Simp app.

You change your plan in the dashboard (the app sends you there). You cancel it in the Simp app.

Moving up starts straight away. You pay the difference for the rest of your current billing period, then the new price from your next bill.

Moving down takes effect from your next billing period, and so does switching between monthly and upfront.

Cancelling. We'll miss you. Like, a lot. There's no contract and no fee. Your plan keeps working until the end of the period you've paid for, then it stops and nothing more is taken. Paid upfront? Months you haven't used aren't refunded. Your coins and any rewards you haven't claimed disappear when your plan ends and can't be brought back, so claim them first.

Changed your mind? Undo the cancellation in the Simp app before your plan ends.

Keeping your number? Cancel in the Simp app (Your profile, then Your account, then Cancel plan). Once your plan is cancelled you can get your transfer code (PAC) there: give it to your new provider. Or text PAC to 65075 from your Simp phone to get the code without cancelling: your plan keeps running and is billed until your number moves, then it ends for you. On Simp AI there's no transfer code, because your AI number can't be moved to another provider: just cancel. See How do I leave Simp and keep my number?