Try before you Buy!

Not sure? You can download iStumbler now and try it out for free.

Single User License

iStumbler is now $20 for all the computers that you own, licenses can be shared between user accounts.

We accept payment via PayPal or Stripe for Credit Cards, and Coinbase for Bitcoin, either from your Coinbase account or any wallet.


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Previous Donor or Subscriber

Many generous, wonderful and genuinely good people have donated to iStumbler over the years and we have previously experimented with a subscription plan. Anyone who has previously donated or participated in the subscription program is entitled to a Single User License to iStumbler.

Sometimes our emails end up in your spam folder, if you have not received your license please check your spam folder. To prevent this, download the iStumbler Support vCard and add it to your address book.


Please enter your email address and the receipt of your donation or subscription or any other information we can use to help you.