Observed arrival · 2026-10-31
Just Watts: an indoor cycling trainer app
A free, open-source app for building ERG workouts, riding virtual courses, and tracking indoor rides with a smart trainer.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Indoor cyclists using smart trainers
- Worth noticing
- Workout blocks can be entered as text, including intervals such as 5x(3m 115%, 3m 50%).
Field notes
Riders can set FTP themselves or use one of two test formats: a 20-minute effort or a ramp that increases by 20 W per minute. Workout settings include cadence cues, beeps before segments, and a choice about what happens after the final segment. The page says data is stored in the browser, with backup export and import available; it also notes that trainer connection may require a compatible browser or the desktop app.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue