Hardware & software:
- SongShift at https://songshift.com for $4.99/month (for Pro version) from Andy Ihnatko.
- Fantastical at https://flexibits.com for $3.33/month (for individuals) from Rene Ritchie.
- Joe Danger (reboot for iOS) at https://apps.apple.com for $1.99 from Leo Laporte.