PCalc for iOS is 15 years old today, which does not seem possible. As the Mac version is just over 30 years old, that also means at some point very very soon, the iOS version will have been around for more than half of PCalc's entire existence.

If you bought it on day one, I hope you have appreciated the one and a half decades of free updates, and I shall direct you to the tip jar 😉

Looking back at Apple’s iPhone App Store at 15 – and 15 notable launch day apps | Stuff

As Apple’s always said: there’s an app for that. In fact, even on day one, there were over 500 of them

Stuff
@craiggrannell @jamesthomson I'm pretty sure PCalc was the first app I bought from the App Store when it opened in the UK. Rather disappointed it hasn't kept up with the times and introduced tiered subscription plans plus a free tier that only lets you use numbers below 100 and makes you watch an ad before giving you the results.
@m @craiggrannell I'll try and catch up with modern expectations!
@jamesthomson @craiggrannell Maybe license it to EA to produce a new "free to start" version that requires the purchase of in-app currency to not have to wait 12 hours between calculations and to purchase "elite number warrior" features such as multiplication and the decimal point?
@m @craiggrannell I like your thinking!