SleepStream 2 Ultimate vs HeartMath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SleepStream 2 Ultimate
This app provides a comprehensive suite of tools to enhance sleep and relaxation. It offers a variety of calming sounds, guided meditations, and visual experiences designed to help users unwind and achieve restful sleep.
- Quality audio with calming sounds
- Guided meditations and music
- Breathtaking visualizations and moodlights
- Binaural & Isochronic brainwave programs
- Unique audio engine for sound mixing
- AirPlay support
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Whether you sleep to dream, rest to recharge, or simply nap just to get by, the hours you spend in bed are probably the most important hours of the day. Recognized as the premier sleep and relaxation aid, SleepStream 2 has been recommended by 148Apps, Dr. Oz, iPhonefreak, Health Magazine, TVN, The Daily App Show, Appolicious and thousands of satisfied customers. Think about the difficulties you’ve had trying to sleep. Maybe you were battling a wired mind, racing through a million different thoughts; or perhaps trying to drown out the sound of an unsettled baby, crying from a nearby airplane seat. In a life full of distractions like these, all you’d like is a window of peace and quiet – or at least a few hours of undisturbed rest and relaxation. Thankfully, SleepStream 2 not only assists in capturing a full night’s slumber, but it does so in a way that results in an absolute bodily recharge everytime you close your eyes. Main features: - 8 Hours of Quality Audio Each of SleepStream’s calming sounds or piece of music has been handpicked and carefully crafted to remove irritating frequencies and volume inconsistencies. - Guided Meditations & Music Sometimes you need just a little bit more to shake the stress of a long, hard day. So, SleepStream 2 now has the ability to mix background sounds with guided meditations and music. Including four guided meditations for sleep, relaxation, motivation and energy, and hours of calming, soul-soothing music. - Breathtaking Visualizations, Wallpapers & Moodlights, SleepStream 2 gives you a complete visual getaway, thanks to the scenic pictures and video loops that can be viewed while listening to the app’s audio programs. Visualizations now include a new moodlight feature, where randomly generated plasma images flow across the screen in a harmony of colors and textures. You’ll have no choice but to drift into a world of relaxation. - 140 Binaural & Isochronic Brainwave Programs – 15 Categories To stimulate the brain’s activity associated with relaxation, sleep and focused states of being, SleepStream 2 also offers 140 specially designed brainwave programs for a full and complete, integrated sound experience. SleepStream’s 15 brainwave categories include sleep, relaxation, energy, focus, meditation, hypnosis, learning, mood, motivation, creativity, lucid dreaming & more. - Unique Audio Engine & Sound Generators Sleepstream’s audio engine randomly combines hundreds of different sounds, giving you a new experience everytime the app is used. Mix background sounds, music, guided meditations and brainwave programs in any combination for maximum relaxation, night after night. - AirPlay Support Play SleepStream audio on AirPlay enabled speakers and receivers. - Best of All: All Present and Future Premium Downloads are Free! Our loyal Sleepstream users tell us that they don´t want to pay for downloads! We listened! Sleepstream 2 Ultimate buys you the latest version of SleepStream 2 for both iPhone and iPad, and all present and future premium downloads are free – a saving of $23 compared to obtaining the downloads through in-app purchases in the other SleepStream 2 versions. - Many Uses – Even When You’re Awake! Equipped with functional timer, SleepStream makes it easy to enjoy power naps. Just engage the timer and alarm, and SleepStream will gently wake you after your session has ended. But don’t stop there – the app is also perfect for relaxation, meditation, noise masking, yoga, and pure enjoyment. SleepStream 2 was developed in conjunction with recognized sleep and relaxation experts, certified hypnotherapists and trained audio professionals to ensure a soothing sleep experience that is difficult to attain through traditional means. Don’t let the stress of everyday life get the best of you, depriving you of your ability to focus, relax, and most importantly rest - get Sleepstream 2 Ultimate today and be refreshed and ready for tomorrow.
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 price: HeartMath at Free against SleepStream 2 Ultimate's $9.99. HeartMath also leads on rating (4.9 vs 4.5) and ratings volume (4.6K vs 188). SleepStream 2 Ultimate's advantage is in-app purchases (none vs 5) and review sentiment (81% vs 73%). On ads 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
HeartMath is free to download; SleepStream 2 Ultimate costs $9.99 up front. HeartMath sells 4 in-app purchases, starting at $39.00 per year. SleepStream 2 Ultimate asks for nothing beyond the download.
HeartMath holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: HeartMath has 4.6K ratings behind it against 188, so its average is the more settled of the two. Written reviews complicate that: 81% of SleepStream 2 Ultimate's written reviews are positive against 73% of HeartMath's, so the app with the better star average is not the one people write more warmly about.
SleepStream 2 Ultimate ships an update every 2 months, HeartMath every 3 weeks. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.
| Parameter | SleepStream 2 Ultimate | HeartMath |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.5 (188 ratings) | 4.9 (4.6K ratings) — better |
| Positive reviews | 81.3% of reviews — better | 73.1% of reviews |
| Number of ratings | 188 | 4.6K — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 32 MB | 185 MB |
| Age rating | 12+ | 4+ |
| Developer | Explosive Apps | HeartMath Inc. |
Customer experience
SleepStream 2 Ultimate
HeartMath
User reviews
SleepStream 2 Ultimate
From 188 App Store ratingsWhat we love
- 👍 Helps with sleep, relaxation, and focus
- 🚀 Customizable sound options
- 💡 Variety of binaural beats and overlays
- 👍 Useful for meditation and anxiety reduction
- 👍 Helps with tinnitus and headaches
Room to improve
- 🐛 Crashes when trying to download additional content
- 🔍 App not updated in years, feels outdated
- 💰 Expensive for an app that hasn't been updated
- 🔍 Scaling issues on iPad Pro
- 🔍 Difficulty navigating and selecting options
HeartMath
From 4.6K App Store ratingsWhat we love
- 🚀 Huge improvement over previous app
- 👍 Easy to use and highly recommended
- 💡 Loaded with HeartMath techniques and courses
- 👍 Powerful tool for nervous system balance and anxiety reduction
- 👍 Helps achieve a better mental state
Room to improve
- 🐛 Connectivity issues with sensor
- 🐛 Sensor not compatible with older devices
- 🐛 App crashes and freezes on newer devices
- 🐛 Inaccurate heart rate and coherence readings
- 🐛 Disruptive screen sleep behavior during sessions
Bugs and requests
SleepStream 2 Ultimate
Reported bugs
3 issues- Crashes when trying to download additional content
- Scaling issues on iPad Pro
- Difficulty navigating and selecting options
Requested features
5 requests- Longer timer options (up to 8 hours)
- Sleep analysis and tracking features
- More guided meditations and new sound content
- Ability to import custom music/sounds
- Airplay and Bluetooth speaker support
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
SleepStream 2 Ultimate
No 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
Questions
Is SleepStream 2 Ultimate free?
Is HeartMath free?
Which has better reviews, SleepStream 2 Ultimate or HeartMath?
Do SleepStream 2 Ultimate or HeartMath have ads?
Which is updated more often, SleepStream 2 Ultimate or HeartMath?
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