HeartMath vs Soul Link
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.
Soul Link
Enhance your meditation with a unique tool that combines sound healing, immersive imagery, and focus-enhancing frequencies. Achieve deeper states, reduce stress, and improve well-being through personalized sessions and progress tracking.
- Patented meditation tool
- Sound healing integration
- Immersive imagery
- Focus-enhancing frequency waves
- Personalized meditation sessions
- Progress tracking
- Stress and anxiety reduction
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Welcome to Soul Link, a meditation app that has been thoughtfully designed to magnify your meditation experience in ways you have never imagined before. Our patented meditation tool blends the power of sound healing, immersive imagery, and focus-enhancing frequency waves, providing a unique and transformative meditation experience that is sure to leave you feeling refreshed and rejuvenated. Soul Link has been designed to help you achieve a deeper state of meditation, reduce stress and anxiety, and enhance your focus, thereby promoting a heightened sense of overall well-being. Our app features a range of powerful audio and visual tools that work together to create an immersive meditation experience that caters to your unique needs and goals. Whether you are looking to reduce stress, improve your sleep, or enhance your creativity, our app has the tools to create a meditation perfectly suited to you. In addition, Soul Link provides a range of features to help you personalize your meditation practice, including the ability to set reminders, track your progress, and customize your own meditation sessions. So, don't hesitate any longer! Download Soul Link today and unlock the transformative power of our patented meditation tool. With Soul Link, you can achieve greater inner peace, focus, and well-being. Additional Subscription Information: You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription. • 1 month ($29.99) and 1 Year ($299.99) durations. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Subscription may be cancelled at any time within the iTunes and App Store Apple ID Settings. All prices include applicable local sales taxes. • Payment will be charged to iTunes Account at confirmation of purchase. - Check out our privacy policy and terms of use: Privacy policy: https://soul-web-pages-production.s3.us-west-1.amazonaws.com/Soul_Privacy_Policy.html Terms of use: https://soul-web-pages-production.s3.us-west-1.amazonaws.com/Soul_Terms_of_service.html
Screenshots
Verdict
The clearest difference is rating: HeartMath at 4.9 against Soul Link's 4.5. HeartMath also leads on ratings volume (4.7K vs 8) and update cadence (every 3 weeks vs every 2 months). Soul Link's advantage is iOS requirement (16.0 vs 26.0). On price, review sentiment, 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 Soul Link sells 2 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.
HeartMath holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 74% of HeartMath's written reviews are positive against 80% of Soul Link's, so the app with the better star average is not the one people write more warmly about.
HeartMath ships an update every 3 weeks, Soul Link every 2 months. Both last shipped on October 21, 2026.
| Parameter | HeartMath | Soul Link |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (4.7K ratings) — better | 4.5 (8 ratings) |
| Positive reviews | 73.8% of reviews | 80.0% of reviews — better |
| Number of ratings | 4.7K — better | 8 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 185 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | HeartMath Inc. | Supernal World Creations |
Customer experience
HeartMath
Soul Link
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
Soul Link
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
Soul Link
- Monthly Subscription7 Days trial$29.991 Month
- Yearly Subscription7 Days trial$299.991 Year








