HeartMath vs ThinkFast
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.
ThinkFast
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ThinkFast helps you replace endless scrolling with meaningful brain training. Play quick daily challenges that improve memory, logic, focus, and problem-solving through fun puzzle games. Build a daily habit, level up your brain, and compete with players around the world. Whether you have 5 minutes or 30 minutes, ThinkFast makes every session productive. FEATURES • Daily brain workout • Multiple puzzle games • Daily challenges • Global leaderboard • Personal best tracking • XP and leveling system • Daily streaks • Brain activity statistics • Skill progress tracking • Beautiful minimalist design • Offline gameplay • Quick sessions for any schedule TRAIN MULTIPLE SKILLS Memory Improve recall and recognition with carefully designed memory challenges. Logic Solve increasingly difficult puzzles that strengthen reasoning skills. Focus Improve concentration and attention through fast-paced games. Speed Challenge your reaction time and decision making. PUZZLE COLLECTION • Twenty48 • Focus Grid • Pair Up • Echo • Fill • Kings • Slide • Color Sudoku • Lights Out NEW CHALLENGES EVERY DAY Complete the daily workout, maintain your streak, earn XP, and unlock higher levels. TRACK YOUR PROGRESS Monitor your brain training journey with detailed statistics including: • Brain Time • XP • Level • Brain Index • Daily Streak • Best Streak • Weekly Activity • Skill Ratings COMPETE WORLDWIDE Climb the leaderboard and compare your performance with players across the globe. WHY THINKFAST? Instead of spending time doom-scrolling, invest a few minutes each day improving your mind. ThinkFast combines engaging puzzles with habit building to help make brain training part of your daily routine. Download ThinkFast today and start training your brain. Unlimited Play & premium features require a subscription $1.99/week $29.99/year Subscription autorenews until cancelled, cancell anytime Terms of use: https://thinkfastgameapp.netlify.app/terms Privacy policy: https://thinkfastgameapp.netlify.app/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: ThinkFast at 17 against HeartMath's 26.0. On price, ads, in-app purchases 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 4 in-app purchases, starting at $39.00 per year and ThinkFast sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | HeartMath | ThinkFast |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (4.6K ratings) — better | — |
| Positive reviews | 73.8% of reviews | — |
| Number of ratings | 4.6K — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17 — better |
| Further details — not scored | ||
| Size | 185 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | HeartMath Inc. | Puranjan Mallik |
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
ThinkFast
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
ThinkFast
- ThinkFast - Weekly$1.997 Days
- ThinkFast - Yearly$29.991 Year









