Intertakt
Intertakt is an offline-first interval training mobile timer designed to play voice cues and countdown beeps over music with the screen locked.
About Intertakt
Intertakt is an interval training audio timer built for HIIT, Tabata, round-based boxing, and mobility workouts, engineered specifically to operate while a smartphone is locked or tucked into a pocket. Unlike standard workout timers that demand continuous screen illumination or cancel running sessions during device sleep, Intertakt runs its countdown audio engine entirely in the background. Athletes set their desired work, rest, and round intervals down to single-second increments, start the timer, and turn the display off without worrying about stray touch inputs interrupting their sets.
Audio coordination forms the core of the mobile application. Intertakt plays countdown tones and multilingual voice cues (available in English, Spanish, and Russian) directly over background music playback from platforms like Spotify. Users receive granular controls over sound mixing, including independent volume sliders for music, speech announcements, and countdown beeps. Crucially, audio ducking, which briefly lowers music volume during phase changes, can be fine-tuned or deactivated entirely, preventing the jarring playback cutouts common in competing fitness utilities. If an incoming call interrupts a set, the app holds the exact second and round position, presenting a single resume button rather than restarting from zero.
From a data and commercial standpoint, Intertakt adopts a localized, privacy-conscious model. The application requires no user accounts, email sign-ups, or cloud connections, storing routines and workout records entirely on the local device. The base edition is free without workout caps, session limits, or third-party ads. A one-time in-app purchase through Google Play unlocks unlimited custom workout routines, historical session logs, and plain JSON file export and import for transferring training plans between devices.
Screenshots (2)
Works with
Features
- Every round has an in-point and an out-point
- Voice cues and countdown beeps over your music, separate volumes
- Screen off, phone face-down, resume at the exact second
- Interruption recovery preserves the exact second and round after phone calls, offering an explicit single-tap resume
Use Cases
- HIIT and Tabata rounds called by voice, no screen needed
- EMOM and office complexes timed by beep and voice
- Running intervals over your own playlist
- Backing up and sharing personal interval routines by exporting training configurations as plain JSON files
Verified facts
Checked by the StackLedge team.
FAQ
Does it interrupt the music playing on my phone?
No. Countdown beeps and voice cues play over your music instead of pausing it, and each channel has its own volume. Music, beeps and voice stay independent for the whole session — no forced ducking, no silent resets.
Do I need an account to use it?
No. 0 accounts, 0 ads, and the free tier includes unlimited workouts. Premium adds unlimited custom plans, history and JSON export — as a one-time purchase, not a subscription.
What happens if a call interrupts a workout?
Sessions survive calls and app switches. The pause is treated like a splice: you resume at the exact second you left, not from the start of the round.
Does Intertakt require an account or active internet connection to function?
No account or internet connection is needed. All routine creation, timing logic, and session records function completely offline on the user's mobile device, eliminating cloud dependencies and registration hurdles.
Can individual exercises within a routine have different interval lengths?
Yes. Intervals can be tailored per exercise in single-second increments ranging from 1 second up to an hour. For instance, a session can combine a 3-minute sparring round with a 30-second finisher rather than forcing identical interval times across the entire workout.
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