Free tools

Which tool do you need?

Use the popup conversion calculator when you are deciding whether a popup is worth it. Type the visitors a month on the pages where it would show and the share of them you expect to sign up, and it tells you how many new emails that adds up to each month. You can put a second rate next to it to see what an improvement would be worth. It also lists the published popup averages from Wisepops and Omnisend, with links, so you can sanity-check your guess.

Use the wheel spinner when you just need a fair random pick: a giveaway winner, the next person to present, or dinner. It runs entirely in your browser with its secure random number generator, takes up to 50 options and can remove each pick so you can draw several winners in a row.

Both tools are free, need no account and send nothing you type to us. If you run an online store and want a wheel that hands out discount codes and collects emails, that is what SpinLoop itself does: see the spin-to-win wheel or the pricing.

Turning the numbers into a plan

Once the calculator gives you a monthly figure, check it against what a new email is worth to you. If one in twenty new subscribers places an order and your average order is $40, then 200 extra signups a month is roughly 10 orders, or about $400 in sales, before the cost of the discount. Those inputs are an example, not a benchmark: use your own email-to-order rate from your email tool. Our guide to choosing prizes shows how to make sure the discount you offer still leaves you a margin.