Tabata Core

Content rating
Everyone
10+
Downloads
Content rating
Everyone
Learn more
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About this app

Tabata Core is a fullscreen gym timer for Tabata-style and HIIT workouts: configure sets, reps, work intervals, and rests (including optional warmup and cooldown). No account required. Optional Tabata Core StopWatch companion sync over Bluetooth mirrors your timer on a esp32 stopwatch device when you pair one.
FEATURES
• Fullscreen timer with clear phase labels
• Sets × reps with work / rest between reps and sets
• Optional bundled interval sounds and button vibration
• Optional screen stay-awake during an active workout
• Optional background workout notification (phase and countdown on your device)
• Optional Tabata Core StopWatch sync over Bluetooth (phase, countdown, set/rep on your wrist when paired)
• Optional pause when a call or ringtone is detected (uses audio mode only — no access to your contacts or call log)
• Optional reaction-colour training during work intervals
• Workout resume checkpoint if the app is closed mid-session (stored on your device only)
PRIVACY
• Timer settings stay on your phone — we do not run servers for your workout data
• StopWatch sync is peer-to-peer over Bluetooth between your phone and watch; we do not receive that data on our servers
• No ads or analytics SDKs in the app
• Privacy policy: https://tasosstyl1984.github.io/tabata-core-privacy/
SAFETY & YOUR DEVICE
• Not medical advice — you choose intervals and intensity; train within your ability
• During workouts the screen may stay on and an optional notification may run — this uses more battery than idle use until the session ends
• You may be asked to allow notifications if you enable the background workout notification
• If you enable StopWatch sync and tap Scan & pair, Android may ask for Nearby devices (Bluetooth) permission — used only to find and connect your StopWatch, not for location
• StopWatch sync and a paired watch are optional; the app works fully as a phone-only timer without Bluetooth
• If Android closes the app in the background, resume behaviour can vary by phone manufacturer
• Uninstall or clear app storage to remove all saved settings, checkpoints, and paired watch info
PURCHASE
One-time purchase through Google Play. Payment and refunds follow Google Play’s terms.
Questions: tasos.styl@gmail.com
Updated on
Jun 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Health and fitness and Device or other IDs
Data isn’t encrypted
Data can’t be deleted

What’s new

What's new in Tabata Core — v1.0.16 (build 87)

• READY badge shows mode + sets×reps×work in one tap target; opens Tabata settings.
• Reaction mode label is now REACTION TRAINING.
• Cleaner READY layout without duplicate workout lines.