Rewire vs HeartMath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rewire
Visualize your stress levels in real-time through heart rate biofeedback. This app translates physiological changes into a dynamic color display, helping you understand your body's responses to daily experiences and practice mindfulness.
- Real-time heart rate biofeedback
- Color visualization of stress levels
- Personalized resting heart rate baseline
- Privacy-first design, data stays on device
- Guided mindfulness and calming practices
- Optional integration with Rewire Dome display
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Come home to your body. Make time to recover from everyday stress. Discover what helps you feel calmer through guided body-based practices and personalized heart-rate color feedback. Your stress response is automatic. Recovery can be practiced. After a demanding day, a difficult conversation, or an intense workout, Rewire: Heart + Mind Insight helps you pause, notice how you feel, and choose a practice that supports your recovery. RESET. PRACTICE. RESTORE. Start with a brief reset. Explore a guided practice. Give yourself time to restore. • Breath: Follow breathing rhythms and guided techniques. • Movement: Explore movement and touch-based practices. • Connection: Make space for connection and care. • Awareness: Engage your senses and notice your body. • Nourish: Explore ways to support your everyday wellbeing. Hand-curated sounds, videos, and guides bring these practices together to support nervous-system recovery. Choose how much time you have, follow along, and finish with a personal check-in and encouragement. SEE YOUR ACTIVATION. PRACTICE YOUR RECOVERY. Rewire’s patented Heartbeat tool translates live heart-rate data into seven color levels personalized to your resting baseline. Green represents your baseline. Warm colors indicate heart rate above your baseline. Cool colors—cyan, azure, and deep purple—indicate heart rate below your baseline and can accompany relaxation. Movement, stress, and emotions can all raise heart rate. Use the colors alongside how you feel to notice your patterns and explore what helps you recover. Choose a practice. Observe your response. Practice returning toward your baseline after activation, and make recovery part of your daily routine. The colors are feedback, not a score. YOUR HEARTBEAT. IN A WHOLE NEW LIGHT. Bring your personalized color feedback into the room with the optional Rewire Heart Light. Your heart-rate monitor supplies live heart-rate data. The app translates it into colors relative to your resting baseline. The Heart Light displays those same colors in your surroundings, so you can follow the feedback without continually watching your phone. Let the colors accompany your breathing, movement, or guided recovery practice. The Rewire Heart Light kit includes a compatible heart-rate monitor and is sold separately on Amazon. Visit rewirestress.com for Heart Light details and purchasing information. Already have the kit? This is your companion app. Connect the included monitor and pair your Heart Light to begin. START WITH WHAT YOU HAVE. Use guided practices, breathing tools, sounds, and recovery sessions without any additional hardware. For live color feedback in the Heartbeat tool, connect a compatible Bluetooth heart-rate monitor. The Heart Light is optional. No account or login is required. Come home to your body. Discover what helps you recover. Make time for yourself, every day. Rewire is a general wellness tool, not a medical device. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Rewire at none against HeartMath's 2. Rewire also leads on review sentiment (100% vs 74%) and iOS requirement (17.6 vs 26.0). HeartMath's advantage is update cadence (every 3 weeks vs every 7 months) and ratings volume (4.7K vs 15). On price, rating, ads and device support 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 2 in-app purchases, starting at $79.00 per year. Rewire asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Rewire against 4.9 for HeartMath. That said, the two scores are not equally well evidenced: HeartMath has 4.7K ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 100% of Rewire's written reviews are positive against 74% of HeartMath's.
Rewire ships an update every 7 months, HeartMath every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | Rewire | HeartMath |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (15 ratings) — better | 4.9 (4.7K ratings) |
| Positive reviews | 100.0% of reviews — better | 73.8% of reviews |
| Number of ratings | 15 | 4.7K — better |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 19 MB | 185 MB |
| Age rating | 4+ | 4+ |
| Developer | Squid Store, LLC | HeartMath Inc. |
Customer experience
Rewire
HeartMath
Bugs and requests
Rewire
Not enough reviews yet to summarise bugs or 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
In-app purchases
Rewire
No in-app purchases
HeartMath
- HeartMath Premium7 Days trial$79.001 Year
- HeartMath Premium7 Days trial$99.991 Year
Questions
Is Rewire free?
Is HeartMath free?
Which has better reviews, Rewire or HeartMath?
Do Rewire or HeartMath have ads?
Which is updated more often, Rewire or HeartMath?
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