When you train at home or in the gym—whether it's high-intensity interval training (HIIT), Tabata, kettlebell circuits, or mobility flows—keeping track of time has always felt broken.
The Floor-Timer Dilemma
Think about your last set of planks, burpees, or push-ups. Where was your phone? Usually, it lies flat on the gym mat or leans against a dumbbell. To see how many seconds remain:
- You have to twist your neck sideways mid-exercise.
- You break your spinal alignment.
- You lose focus and break your flow.
Alternatively, you turn on your selfie camera to use your phone screen as a training mirror to check your form—but then you lose your timer display entirely.
Enter the Smart Camera HUD
TimerCoach solves this with Smart Camera HUD (Heads-Up Display).
When you tap the HUD icon during any workout session:
- Your front-facing camera activates, turning your iPhone or iPad screen into a crystal-clear digital training mirror.
- A floating, translucent interval timer widget overlays directly on top of your live reflection.
- You can freely reposition the widget anywhere on screen (Compact pill, Ring, or Full view) so it never blocks your line of sight.
+------------------------------------+
| [ Live Front-Camera Reflection ] |
| |
| +------------------------+ |
| | WORK: 00:24 Round 3/8 | | <-- Floating HUD Widget
| +------------------------+ |
| |
| You check your posture in real |
| time without twisting your neck |
+------------------------------------+
Self-Observation, Not Gimmicky AI
We made a deliberate product choice: TimerCoach does not pretend to be an AI posture critic that buzzes with false errors.
Automated pose tracking often fails when you move fast, drop to the floor, or step out of frame. Instead, TimerCoach gives you the best tool possible: instant visual self-feedback. You see your hips, your shoulders, and your knees while the timer counts down right in front of your eyes.
Clean Apple-First Experience
The Smart Camera HUD is designed to work seamlessly with the rest of the Apple ecosystem:
- Lock Screen & Live Activities: Even if your screen turns off, the Dynamic Island and Lock Screen keep your interval progress visible.
- Apple Watch Sync: Check your heart rate and interval time on your wrist without ever touching your phone.
- Zero Ads & 100% Privacy: Your camera feed is processed entirely on-device and is never recorded, transmitted, or stored on external servers.
Train in your flow. Your timer stays in view.