Timerium - Interval Timer

Build any interval sequence. Launch it in one tap from your home screen.

Timerium is the sequential interval timer for Android built around one idea: your routines should run themselves. Chain unlimited timer steps together, name each one, and let Timerium auto-advance through your HIIT workout, Pomodoro focus blocks, morning routine, or custom sequence — hands-free, step by step.

⚡ ONE-TAP HOME SCREEN WIDGET
Place a widget on your home screen and assign any saved routine to it. Tap once — your sequence starts instantly. No unlocking, no navigating, no waiting. Three widget sizes (2×1, 3×1, 4×1) resize to fit your layout.

⏱️ SEQUENTIAL INTERVAL TIMER
The flagship feature. Add as many steps as you need. Name each one — Warm-Up, Sprint, Rest, Focus, Break — anything. Each step runs its own countdown and auto-advances to the next. Skip, pause, loop, or reset at any point. The sequence keeps running in the background if you switch apps.

Drag-and-drop reordering
Per-step completion sounds (Chime, Bell, Glass, or your own audio file)
Loop mode for continuous circuits
Live "Next up" preview during active sessions
Auto-scroll keeps the active step always in view


🎯 BUILT-IN TEMPLATES — START IMMEDIATELY
Five professional routines ship ready to use:

Classic Pomodoro — 4 × 25-min focus + 5-min breaks + 15-min long break
HIIT Workout — 3-min warm-up, 8 rounds of 30s sprint / 15s rest, 3-min cool-down
Deep Work Block — 2 × 50-min focus with 10-min recharge cycles
20-20-20 Eye Saver — 20-min screen time, 20-second distance look-away
7-Minute Morning Jumpstart — Hydrate, stretch, plan your day

Save your own sequences as templates and reload them anytime. Choose to Append steps to an existing sequence or Replace it entirely.

⏳ SINGLE TIMER & STOPWATCH
Need a quick countdown? Quick-pick chips for 1 to 60 minutes — one tap to start. Multi-select chips to add durations together. Custom input up to 12 hours. Interval/rounds mode for repeated bursts. Switch to Stopwatch mid-session with one tap. Distraction-free fullscreen mode for total focus.

🔔 SOUNDS, NOTIFICATIONS & VIBRATION
Every step completion triggers your chosen sound and a system notification showing what just finished and what's coming next. Works when the screen is locked. Per-step sound customisation means your Warm-Up can chime softly while your Sprint end fires a sharp bell. Import any audio file from your device as a custom sound.

🎨 FOUR THEMES INCLUDING AMOLED BLACK
Widget Blue (signature dark), Sunrise (warm light), Forest (deep green), AMOLED Black (true black for OLED screens). Switch themes with one tap. Preview all four during onboarding before you choose.

📋 SESSION HISTORY
Every completed timer and sequence step is automatically logged. Review your last 100 sessions with timestamps and durations to track consistency over time.

🔒 100% PRIVATE. NO DATA COLLECTED.
Timerium stores everything locally on your device. No account required. No data shared. No internet needed to run your timers.

💎 TIMERIUM PRO — ONE-TIME PURCHASE
A single, permanent upgrade. No subscription. No recurring charge.
Pro unlocks:
✓ Unlimited saved templates (free tier: 3)
✓ All ads removed permanently
That's it. No features held hostage. The upgrade exists to support an independent developer — not to extract ongoing payments.