SightSing came out of a memory. I sang in college and tried, like every vocal student does, to get good at sight-reading. I'd open a score, hum through it, and have no idea whether I was actually nailing the pitches or fudging them. There was no way to know without a teacher in the room, and a teacher in the room costs time and money I didn't have between rehearsals.

For years afterward I kept thinking: if there were an app that could just listen to me while I practiced — tell me when I was flat, when I missed an interval, when my rhythm drifted — I could systematically get better at sight-reading on my own. Five minutes a day. No teacher required. No guessing.

That's what SightSing is. The mic listens while you sing. Every note is graded in real time. The 18-level curriculum walks you from your first three-note solfege pattern up through complex modal melodies, syncopated rhythms, and chromatic intervals — one new concept per level, with rolling-window mastery so a bad day doesn't reset your progress.

It's built for two people: the music student just starting to sight-read (choir kid, voice major, theory class), and the experienced vocalist who wants to sharpen a skill that's atrophied. Same app, same curriculum — the level system meets you where you are.

The curriculum was reviewed by a PhD vocal pedagogue in 2026 and revised after their feedback: voice-specific tessituras, rolling-window mastery (not streak resets), and a deliberate ramp that doesn't skip the boring-but-essential intervals.