Nami – BPM, HRV & Breathing

Nossobit Ltda

Contains adsIn-app purchases

About this app

🫀 Nami – BPM, HRV & Breathing

Measure your heart rhythm and train breathing with precision.

See your heartbeat.
Understand your rhythm.
Train your breathing.

Nami is a high-precision app to measure heart rate, HRV, and breathing, designed for people who want real data, full signal visibility, and control — without black boxes.

No external hardware required.

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🧠 What Nami does (in simple terms)

Nami measures your heartbeat and breathing rhythm and shows exactly what is happening — in real time.

You can:
• See your heart rate beat by beat
• Analyze HRV using professional metrics
• Train breathing with precise pacing
• Explore graphs, not just numbers

Simple to start. Deep when you need it.

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❤️ Core features

• Real-time heart rate and RR interval monitoring
• HRV metrics: RMSSD, SDNN, LF/HF, spectral analysis
• Breathing trainer with customizable pacer
• Biofeedback tools for relaxation and focus
• Interactive, zoomable graphs
• Data export (CSV)
• Multiple user profiles on the same device

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🎮 Breathing & biofeedback modes

• Pacer mode – visual breathing guide with graphs
• Game mode – timed breathing without distractions

Ideal for:
• HRV biofeedback
• Relaxation and stress regulation
• Breathing awareness and coherence

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🔬 Precision without mystery

Nami was developed through years of academic research and experimentation.

It uses phonocardiography — detecting heartbeats by sound through the microphone — to extract RR intervals with high temporal precision.

You can see the signal, not just the final numbers.

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🔧 Sensor options

🎤 Built-in microphone (recommended)
⌚ Bluetooth HR straps (BLE), such as:
• Polar H6, H7, H10, H01
📱 Experimental camera mode (accuracy may vary)
⌚ Wear OS devices with supported HR profiles

⚠️ For best accuracy, remain still and avoid pressing sensors too hard.

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🧩 Advanced controls (optional)

For users who want deeper control:
• Signal filtering and artifact handling
• Custom thresholds for HRV metrics
• Adjustable pacing and session timing
• Fine-tuned analysis parameters

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📢 Ads & optional upgrade

• The free version includes ads
• Remove ads permanently with a one-time in-app purchase
• No subscriptions
• No usage limits

Simple and transparent.

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🔐 Privacy & data ownership

• Fully offline
• No account required
• No cloud sync
• Your data stays on your device

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⚠️ Important disclaimer

Nami is not a medical device.

It does not provide diagnosis or medical evaluation.
Results depend on sensor quality, environment, and correct usage.

Nami applies RR detection methods similar to ECG-based systems, offering a transparent and accessible HRV platform.

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✨ Download Nami

See your heart rhythm.
Train your breathing.
Explore real physiological data.

Ratings and reviews

this totally worked for me, on my Galaxy watch 7. I downloaded the app for both my phone and my watch. And then in the app under sensors I selected wear. And then for device it automatically selected wear. next I went to sessions and selected breathing and it absolutely recorded and then displayed my heart rate variability. And I've been trying for about an hour to find an app that would do this that didn't want me to pay $20 a month every month. and this app does it for free! I'm very impressed

Nice app, but it would be much better if there are guides for results at least you can compare your results, and it would also be nice if it supports the HRM sensor for samsung phones.

Is there a guide anywhere for using the app? Theres no help section on how to use the app actually. I'm using a TicWatch and haven't figured out how to make sessions be detected from phone app. Will change rating to much higher if there is guide to using the app so I can set it up actually. Like how does the camera or microphone work as a sensor?

What’s new

• Improved heart rate permission handling on the latest Android versions
• More stable real-time charts during measurement sessions
• Better screen behavior on Wear OS to avoid unexpected sleep
• Visual and performance improvements for small screens