I'm able to decode Morse with pen and paper, as long as it's only 10–15 WPM, but that needs to improve. Most operators recognize CQ without even knowing Morse. I have already learned a few more phrases just by hearing them, like "TEST", "DE", "PSE K", "BK", "BT", etc. Nevertheless, I have issues with more conversational words like "sunny", but it will build up slowly, I'm sure.
To help myself out, and to learn something new, I started building a terminal app for Morse decoding. It's built around a neural network that I trained and can pick up quite a bit of text really well.
The interface is textual. These kinds of applications have a special place in my heart, as I grew up in the Commodore/DOS era. Radios are old-school, and an old-school layout matches them well.
The app also comes with a built-in logbook and QRZ.com integration for callsign lookup and sync.
It's not a CW skimmer, so don't expect pileup handling or contest support. The goal is to sit back and make some contacts slowly.
Give it a try and let me know if you like it!