As John says, make sure and look for iPhone Apps when checking history.
There is a little confusion surrounding 32 bit apps! I'll try to clear it up...
iOS 11 does not run 32 Bit apps. This means that Apple is no longer allowing 32 Bit ONLY apps on the App Store. However, as long as we are developing for an iOS that 32 Bit devices still run on, then Apple will upload 32 AND 64 Bit versions. As your iPad 2 is 32 bit, and on iOS 9, this means, as long as we keep developing for a minimum iOS version of iOS 9, then there will be BOTH 32 AND 64 Bit updates coming. Given there is no real reason for us to develop for iOS 11 exclusively, (there is no new technologies we need between iOS 8 and 11), we will be developing for the minimum iOS supported by the current Xcode, (which is iOS 8 right now, and will be 9 next year and so on), for some time to come.
Also, unless a developer specifically makes an old version no longer available to re-download, you will always be able to download the "latest version that works with your device", meaning even if we launch TouchCab 4.2.3 for iOS 20, you'll still be able to download TouchCab 1.8.4 for your iPad 2.
So, TouchCab will have 64 AND 32 Bit support for some time to come. After that, you'll still be able to re-download or purchase the last good version for your device, regardless of whether it is 32 or 64 Bit.
The confusion is because of the panic "Apple are stopping 32 Bit support!" In reality, they are not allowing 32 Bit apps to work on iOS 11 and beyond. This is good, because it is forcing old apps to be updated. But it doesn't mean that 32 Bit apps will suddenly stop working on 32 Bit devices.
I hope this helps?
Mike