New app

New app: PainCave.fit

PainCave.fit launched on 5 Jun 2026: No-login browser trainer app for ZWO workouts with Strava upload.

Innovation: no-login workouts that also run in Brave and Opera, not only Chrome and Edge

Visit paincave.fitReddit launch postAll about PainCave.fit

The PainCave.fit workout library: Just Ride and structured workouts with their power profiles and TSS.
Screenshot of PainCave.fit by Smart Trainer Apps · paincave.fit
A PainCave.fit workout detail: 2-minute VO2 max repeats with duration, TSS and zone split before starting the ride.
Screenshot of PainCave.fit by Smart Trainer Apps · paincave.fit
The PainCave.fit ride screen in ERG mode: current watts, the workout steps on the left and the workout profile below.
Screenshot of PainCave.fit by Smart Trainer Apps · paincave.fit

3 screenshots. Scroll or swipe sideways.

About PainCave.fit

Free browser-based trainer app (Chrome, Edge, Brave, Opera) that connects trainer and HR strap over Web Bluetooth, rides structured or imported .zwo workouts and exports FIT or uploads to Strava; no login.

Features

  • ERG mode
  • Workouts

Sends rides to

  • Strava
  • Any tracker, by file (FIT, TCX…)

All news

App details

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