Stem Stumper 2.4 is out now on the App Store! Along with a whole mess of bug fixes (less crashes on iPhone 4), it now includes the ability for us to send you promo codes to turn ads off. Download the new version and use one of the 5 links below to turn ads off for free!
We’re also hoping to have our updated Android version out to public soon (possibly this week!) so keep an eye out for it!