Stackapella

Quiet signal

Learn harmony in your browser, free and open source

Launched 9d ago

Signal

Velocity

What this means

16Founder Conviction Index: 16 — low signal.

Few of the conviction sub-signals (reputation, velocity, buyer-intent, tagline clarity) are firing yet.

Prediction

Top-5 finish probability

today

Projected end-of-day votes

3range 2–4

Trajectory

stable

Vote pace holding steady.

Speed vs peers

1.3×

39 Education launches

About

Learn a harmony part from a guide voice while your notes light up, then record every part yourself, exactly in time. Runs in your browser: no app to install, no account to start. Free course from one note to four-part harmony. Open source.

AI Summary

Stackapella is a free, open-source web application that teaches users harmony through guided vocal parts and interactive note lighting. It allows users to record multiple harmony parts in real-time without the need for installation or account creation.

Attention & discussion velocity

Performance

Velocity0

Vote pace vs average

Momentum0

Sustained over 6h

Virality0

Spread × engagement

Engagement—

not measured

Signal sources

2 of 6 active

Launch tracking8 readings since we picked it up
AI analysisEducation
Comment intelligencethread not yet analysed
Outside discussionnot checked — domain is a storefront or shared
Revenue signalsno match on this domain
Editorial scoringbelow the signal threshold for this pass

A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.