HeartMath vs Seeded Sound
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HeartMath
This app helps you manage stress, improve focus, and achieve optimal performance by aligning your heart, mind, and emotions. It offers guided sessions, immersive journeys, and coherence practices based on over 30 years of research.
- Real-time HRV Coherence Measurement
- Coherence Training
- Scientifically Validated Techniques
- Guided Learning Sessions
- Progress Tracking
- Heart-Brain Coherence Benefits
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Align your heart, mind, and emotions to help you manage stress, improve focus, and perform at your best. Enjoy HeartMath’s free intro experience to access your heart’s natural intelligence and see your heart-brain coherence as real-time feedback. Then start your 7-day free trial to explore a comprehensive collection of guided sessions, immersive journeys, and coherence practices designed to help you experience greater calm, focus, clearer thinking, and a more balanced you. **Inner Balance Coherence Plus sensor owners: Use your sensor to unlock a lifetime subscription.** Built on 30+ years of research on the heart-brain connection and supported by over 500 research studies, HeartMath is used in wellness and resilience programs at organizations including Stanford Healthcare and Kaiser Permanente, as well as in professional sports, the military, law enforcement, leading universities, non-profit organizations, and major corporations. It is used by coaches, trainers, and health professionals for stress education and resilience training. The HeartMath system is more than stress management: it’s a journey to more heart-centered living. This app puts HeartMath’s practical, research-supported tools right at your fingertips. Make mental and emotional well-being an achievable part of your daily life. The HeartMath technology is for stress education and resilience training. It is not a medical device. We encourage you to consult a health professional before making any medical decisions. KEY FEATURES • Real-time HRV coherence feedback: Use your phone’s camera or upgrade to the Inner Balance Coherence Plus sensor for a more precise signal and a free app subscription. • Coherence training: Whether you choose the game or the guided mode, watch your heart-rhythm pattern and coherence change in real time. • Research-Supported: Techniques developed from 30+ years of scientific research to help boost focus, positive feelings, and your ability to manage stress. • Guided learning: Explore guided meditations, courses, and videos led by HeartMath trainers. • Progress tracking: View your progress over time with a variety of chart options. WHAT REGULAR COHERENCE PRACTICE CAN SUPPORT Heart-brain coherence is a balanced, focused state you create yourself through calm breathing and positive focus. Coherence supports the body’s natural ability to shift from tension to calm, helping you manage everyday stress and build inner balance. • SUPPORTS STRESS MANAGEMENT & EMOTIONAL BALANCE • SUPPORTS FOCUS AND MENTAL CLARITY — coherent states are associated with more focus, clarity, and creativity. • SUPPORTS RESILIENCE — regular practice can help you adapt to and recover from challenging situations more quickly. • ENHANCES EMOTIONAL WELL-BEING AND SELF-AWARENESS — practice can support a greater sense of inner calm and a more mindful relationship with your emotions. Subscription terms: • Subscriptions renew automatically at the end of each year. • You can cancel your subscription at any time in your account settings. • You will not be refunded for any unused portion of a subscription. • Price is subject to change. • Subscriptions are not available in all countries. • Full subscription terms: https://my.heartmath.com/terms If you’d like to purchase an Inner Balance Coherence Plus sensor to unlock complimentary lifetime access to the HeartMath app, please visit the HeartMath website.
Seeded Sound
This app uses neuroscience-backed audio with subliminal affirmations and calibrated sound frequencies to reprogram subconscious thoughts, habits, and emotional responses. It aims to enhance focus, reduce stress, improve sleep, and promote emotional regulation effortlessly during daily activities.
- Subliminal affirmations below conscious hearing
- Precision-calibrated sound frequencies
- Neurotechnology for emotional regulation
- Stress relief and focus enhancement
- Sleep optimization
- Habit reprogramming
- Passive listening during daily activities
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Seeded Sound: Rewire Your Brain Effortlessly 95% of your thoughts, habits, and emotional responses come from your subconscious mind. Seeded Sound helps you reprogram them and gives you back the power in your own programming…effortlessly. Our neuroscience-backed platform combines subliminal affirmations (spoken just below conscious hearing) with precision-calibrated sound frequencies designed to improve the nervous system and optimize brainwave states. It’s not just soothing audio, it’s neurotechnology for emotional regulation, focus, stress relief, sleep, and habits. How It Works: Simply listen while you work, exercise, meditate, drive, or sleep. Beneath the music, positive subliminal affirmations target the subconscious - where core beliefs and patterns form - while frequency-based soundscapes promote balance in the brain and body. On average, adults are expected to spend 2.5–3 hours each day on self-improvement and self-care tasks just to maintain mental and physical well-being - from skincare routines to the gym, from journaling to reading, and from listening to podcasts to having quality connection time with friends and family. Seeded Sound works passively, meaning it fits effortlessly into what you’re already doing, without adding more to your plate. It enhances your existing routines, adding a deeper layer of mental hygiene without taking time away from the things that matter most. Healing Humanity, One Mind at a Time: Seeded Sound is for every generation. Parents use it to reprogram limiting patterns and regulate stress. Children use it to strengthen focus, emotional intelligence, and resilience, preventing stress patterns before they take root. The world doesn’t just need more healing, it needs prevention. By harmonizing the subconscious and nervous system through sound, Seeded Sound helps raise a generation that’s confident, calm, and emotionally regulated. Your mind. Your programming. Your choice Your privacy matters to us. Read our Privacy Policy and Terms of Use: https://www.seededsound.com/legal/terms https://www.seededsound.com/legal/privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
HeartMath and Seeded Sound both sit at 4.9 stars, but that hides the real split: 100% of Seeded Sound's written reviews are positive against 74% of HeartMath's. Seeded Sound also leads on update cadence (every 10 days vs every 3 weeks) and iOS requirement (14.0 vs 26.0). HeartMath's advantage is ratings volume (4.7K vs 21). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. HeartMath sells 4 in-app purchases, starting at $39.00 per year and Seeded Sound sells 6 in-app purchases, starting at $11.00 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for HeartMath against 5.0 for Seeded Sound. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 74% of HeartMath's written reviews are positive against 100% of Seeded Sound's.
HeartMath ships an update every 3 weeks, Seeded Sound every 10 days. Both last shipped on October 24, 2026.
| Parameter | HeartMath | Seeded Sound |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (4.7K ratings) | 5.0 (21 ratings) — better |
| Positive reviews | 73.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 4.7K — better | 21 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 185 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | HeartMath Inc. | Seeded Sound Inc. |
Customer experience
HeartMath
Seeded Sound
Bugs and requests
HeartMath
Reported bugs
4 issues- Sensor connection issues on newer devices
- App crashes and freezes on iPhone 16 Pro
- Inaccurate heart rate and coherence readings
- Screen sleep behavior disrupting sessions
Requested features
5 requests- Add dark mode option
- Allow playing music/sounds during sessions
- Provide audio feedback on coherence levels
- Add session history customization and details
- Improve sensor compatibility with older devices
Seeded Sound
Not enough reviews yet to summarise bugs or requests.
In-app purchases
HeartMath
- HeartMath Premium7 Days trial$39.001 Year
- HeartMath Premium7 Days trial$59.001 Year
- HeartMath Premium7 Days trial2 variants$79.001 Year
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- HeartMath Premium7 Days trial$99.991 Year
Seeded Sound
- Individual Monthly Plan7 Days trial$11.001 Month
- Family Monthly Plan7 Days trial$14.001 Month
- Individual Yearly Plan7 Days trial$110.991 Year
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- Family Yearly Plan7 Days trial$139.001 Year
- Lifetime Individual Plan$189.00
- Lifetime Family Plan$249.00
Questions
Is HeartMath free?
Is Seeded Sound free?
Which has better reviews, HeartMath or Seeded Sound?
Do HeartMath or Seeded Sound have ads?
Which is updated more often, HeartMath or Seeded Sound?
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