Train-Time

The Professional Gym Audio Controller

About the App

Train-Time is a specialized interval timer designed for professional gym coaches, personal trainers, and martial arts instructors. It synchronizes complex workout sequences (like Tabata or custom BJJ rolling rounds) with Spotify Premium.

Why Spotify?

Managing the gym stereo while trying to coach a class is frustrating. Train-Time connects directly to a coach's Spotify Premium account to act as an automated DJ. It automatically plays high-energy playlists during "Work" phases, and ducks or pauses the music during "Rest" phases so the coach can give instructions.

How It Works

Authentication: Coaches link their Spotify Premium account using secure PKCE OAuth.
Playlist Selection: Coaches can search the global Spotify library or access their personal saved playlists directly within the app to tie specific music to specific routines.
Device Targeting: The app utilizes the Spotify Web API to detect the active gym stereo/device and securely send playback commands.

Privacy Policy

Last Updated: February 2026

1. Data Collection and Storage

Train-Time is a 100% "client-side" application. We do not have a database, and we do not store your data on our servers. All workout profiles, routine names, and your Spotify Access Tokens are stored locally on your own device (inside your browser's Local Storage).

2. Spotify API Usage

To provide automated audio control, Train-Time uses the official Spotify Web API. When you log in, we request the following permissions:

Read Playback State: To know which device is playing the gym music.
Modify Playback State: To pause, play, and change the volume during work/rest transitions.
Read Private/Collaborative Playlists: To allow you to select your own playlists for your workout cards.

We do not access your email, billing info, or personal profile data. You can revoke this app's access to your Spotify account at any time via your Spotify Account Settings.

3. Data Sharing

Because your data never leaves your device, we do not (and physically cannot) sell, share, or distribute your personal data or listening habits to any third parties.

Support & Contact

Need help setting up your gym profiles? Contact us at: support@train-time.com