Overview

Intertakt is an interval timer built for HIIT, Tabata, rounds and mobility work, designed around one simple insight: mid-set you never want to look at your screen. Instead of a visually demanding app, it delivers countdown beeps and spoken voice cues over your existing music while the phone sits face-down, locked, in your pocket or on the gym floor. It solves the two biggest annoyances of mainstream timer apps — forced audio ducking that mangles your playlist, and silent resets to zero when a call or lock screen interrupts a session. The free tier is genuinely unlimited: no session caps and no ads of any kind, with a one-time Premium purchase for power users.

Key Features

• Screen-off, background operation — audio and timing keep running with the screen locked, the app switched away or the phone pocketed, with a lock mode that blocks stray touches from pausing mid-set.
• Independent audio mix — separate volumes for music, voice and beeps, so cues can sit above or below your playlist exactly as you like.
• Optional ducking switch — the beat is dipped only while a cue plays, and ducking can be disabled entirely for uninterrupted playback.
• Spoken round calling — a clear voice counts you in and out of intervals, calls the halfway mark and announces the current round in English, Russian or Spanish.
• Survives interruptions — incoming calls, lock screens and app switches pause the session without losing it, then show "paused at 2:14 of round 3" with a single resume button.
• Per-exercise interval timing — every set has its own work and rest duration in whole seconds, from 1 second to an hour, so a 15-second finisher can sit next to a 3-minute hold.
• Ready-made presets — Tabata 20/10, HIIT 30/30, a 10-minute desk break and a 15-minute mobility routine load into the live timer with one tap.
• Autosave and portable data — named plans save as you edit them, everything is offline-first on your device, and Premium adds session history plus JSON export/import between phones and platforms.

Target Users

• HIIT and Tabata athletes who run short, intense intervals and need hands-free pacing with loud, unambiguous cues.
• Gym-goers doing rounds — kettlebell circuits, boxing rounds, CrossFit-style WODs — where the phone stays face-down and untouched between sets.
• Home and hotel-room trainers who want a zero-setup timer that does not demand an account, a subscription or constant screen attention.
• Desk workers and mobility practitioners using the included 10-minute desk break or 15-minute mobility presets for structured movement at work.
• Multi-lingual users who prefer Russian or Spanish voice cues, or who train to music and refuse to let a timer hijack their playlist.

Unique Selling Points

• Screen-off reliability as the core engineering goal, not an afterthought: background audio, lock-screen survival and touch-lock mode are the product's central design constraints.
• A truly unlimited free tier with zero ads — unlimited workouts, all presets, voice cues and up to three custom plans at no cost, with the promise that the free tier never shrinks.
• Non-destructive audio handling — many timers pause or duck Spotify without asking; Intertakt gives you independent volumes and an explicit ducking toggle.
• No account, no cloud, no profile — a timer is the last thing that should require a login, so all data stays on-device and offline-first.
• One-time Premium pricing instead of a subscription, currently $3.99 for the first 100 places and $6.99 thereafter, with no trials or renewals.
• Explicit resume semantics — interrupted sessions report exactly where you stopped rather than silently resetting to round one.

Pros and Cons

Pros

• Works with the screen locked and the phone in your pocket, which is the single biggest practical gap in most timer apps.
• Beeps and voice ride over your music with independent volumes and an optional ducking switch — no forced playlist pausing.
• Free tier is genuinely usable: unlimited sessions, all presets and no advertising whatsoever.
• Calls survive interruptions and resume with precise context instead of restarting the workout.
• Per-exercise interval lengths in whole seconds give fine-grained control, including 15-second steps.
• No account, no cloud dependency and autosave on every edit.

Cons

• Android only for now — the Google Play release is announced as "coming soon" and iOS is only on the roadmap with a waitlist.
• The free tier caps custom saved plans at three, and session history plus file export/import are locked behind Premium.
• Voice cues are limited to English, Russian and Spanish, so other language speakers must rely on beeps alone.
• Pricing is introductory for the first 100 buyers and then rises to $6.99, which may frustrate late adopters.