SteadyPulse Placebo vs CardiCalm

Find a rhythm that feels right. SteadyPulse Placebo plays a warm, lifelike lub-dub heartbeat at the pace you choose. Set any tempo from 40 to 150 BPM for focus, relaxation, pacing, or simply a sound you enjoy. This isn't a metronome click. Each tempo has its own prepared heartbeat loop, giving every beat a consistent, natural rhythm. Play it through your headphones, keep it going with your screen locked, or use the steady sound with a compatible body-worn haptic wearable. MAKE IT YOURS • Choose a pace from 40 to 150 BPM • Adjust the tempo while the sound plays • Add optional gentle rhythm variation • Choose your audio output with the iOS system picker FOLLOW YOUR HEART RATE, IF YOU WANT TO Start a Heart-Rate Workout to see live readings from a compatible sensor connected to your device, including Polar H10 or AirPods Pro 3. View a rolling heart-rate trend, adjustable zones, your session maximum, and time in each zone. Turn on Follow live heart rate to let the heartbeat audio respond to your measured pace. The workout feature uses Apple Health and requires a compatible sensor and your permission. Manual playback works without either. Completed workouts are saved to Apple Health; your health data is not sent to us. EVERYTHING IS UNLOCKED SteadyPulse Placebo is free to use. Optional tips support development but unlock nothing. The sound can also work with haptic wearables such as the Woojer Strap 4. SteadyPulse Placebo is not affiliated with Woojer; Woojer and Strap 4 are trademarks of their respective owners. No health claims. Maybe it's just a nice placebo. Enjoy it anyway. SteadyPulse Placebo is for sound and wellness, not medical use. It does not diagnose, monitor, or treat any condition.

CardiCalm is a simple, tactile way to calm down: your phone's vibration becomes a slow, steady heartbeat that your body instinctively starts to follow. The calm rhythm helps you slow down, settle, and drift off to sleep more easily. Hold it in your palm, rest it on your chest, or slip it into your pocket, and let the steady pulse take over. Close your eyes, and simply feel it. FREE • Adjustable heartbeat (40–70 BPM) and vibration strength • A real heartbeat sound in perfect sync with the pulse — nothing to calibrate, they simply play together • The sound adapts: a fuller sample through headphones, a cleaner one through the speaker — it switches by itself when you plug in • Pocket mode: black screen, minimum brightness — put it in your pocket or on the mattress • Sleep mode: the heartbeat sound keeps playing with the screen locked, all night • Timer from 1 to 60 minutes, or unlimited • Dark and light themes, 14 languages PRO — one-time purchase, NO subscription • Programs: calm heart, deep sleep, power nap, focus — one tap and everything is set • Custom wind-down: you choose the starting tempo, the target and how long the descent takes • Haptic-guided breathing: 4-7-8, box and coherent — followable with your eyes closed, by touch alone • Personalised tempo: suggests a starting rhythm from your Apple Watch resting heart rate • Save your own setups by name and recall them with one tap • All future Pro features, forever GOOD TO KNOW The vibration works while the app is open — that's exactly why pocket mode exists: with a black screen, your phone can stay in your pocket or beside your pillow. If you want it to continue with the screen locked, turn on sleep mode and the heartbeat sound carries on. iPad has no Taptic Engine, so there the heartbeat plays as sound only — vibration needs an iPhone. PRIVACY CardiCalm does everything on your device. No account, no data collection, no ads. Your resting heart rate is read from the Health app only if you allow it — and that data never leaves your phone. CardiCalm is a wellness app for relaxation. It is not a medical device, does not diagnose or treat any condition, and is not a substitute for medical advice. If you have health concerns, please consult a doctor.