Hey Ernie,
I've been using your app since around 2010. Thank you so much for providing support for this app across... well literally everything except for my Commodore 64 so please get on that. I started using it on an iPod Touch back in 2010, then an iPhone in 2014, and around 2016 I switched to Android and thanks to crossplatform support + Dropbox, I was easily able to seamlessly sync my history / progress (aka you have 1000 cards left to study lol get back to work you SLACKER).
Your SRS implementation is super solid and I really like the ease of adding different TTS voices depending on the card column. A few days ago I realized you'd ported it to run on MacOS so I'm about to give that a shot as well!
As someone who started out as a software engineer and later found themselves living for years in Taiwan studying Chinese, I know it can't have been easy to continually maintain an app for over a decade!!
- Shaun