Pick a line, hear the hazzan, sing it, and see word by word how it went.
You can also type a few words of the pizmon.
▶ plays the hazzan's recording of that line.
Recorded
Tap a word to hear the hazzan sing it, then you.
The address of the checker server. Kept on this phone only.
For each word: ✓ if you really sang it right, ✕ if not. The machine is measured against this.
Pick a word, then record it twice, about two seconds each: once from the throat, once the plain way (ע like א, ח like כ). The verdict shown is the machine's current guess.