Comparison

Inner Balance vs Apollo Neuro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Inner Balance

This app synchronizes your heart, mind, and emotions to enhance health, well-being, and performance. It requires a HeartMath sensor to measure heart rhythms and provides real-time feedback and guided meditations to help you manage stress and improve focus.

Highlights
  • Real-time HRV monitoring
  • Guided meditations
  • Real-time coaching tips
  • Coherence score
  • Progress tracking
Features
Read full description

Inner Balance™ gets your heart, mind, and emotions in sync for greater calm, focus, and a more balanced you in everyday life. HEARTMATH® SENSOR REQUIRED: This is the companion app to the Inner Balance sensor. It requires one of the HeartMath Inner Balance sensors (e.g. Bluetooth® or the Inner Balance Lightning sensor), which connects to your device and clips to your earlobe to pick up your heart-rhythm pattern. Inner Balance™ is a system of software and sensor that helps you strengthen your inner balance through training, guidance, and self-observation. It supports you in bringing your heart, mind, and emotions into a balanced, focused state (coherence), which you create yourself through calm breathing and positive focus. More than 400 independent, peer-reviewed studies have been published on HeartMath technologies and methods. Inner Balance gives you a real-time coherence score as feedback, and guided meditations and dynamic graphics support you toward a calmer, more centered, and more focused state. 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. LEARN HOW TO: • Bring your heart, mind, and body into a calm, balanced state in the moment • Settle reactive emotions and manage everyday stress • Feel calmer, more centered, and more focused • Access clearer thinking to support better everyday decisions Just five minutes of coherence practice, three times a day, fits easily into your routine - and it’s enjoyable. Inner Balance guides you and tracks your progress as you shift your state and watch the changes occur in real time. FEATURES: • Real-time HRV coherence feedback to guide your practice • Guided meditations to support relaxation, focus, and a better wind-down before sleep • Real-time coaching tips with encouraging on-screen prompts • Advanced options: four challenge levels, customizable settings and screens • Access to a free cloud platform to save and review all your sessions and get tips and training WHAT REGULAR COHERENCE PRACTICE CAN SUPPORT: • A calmer way of handling everyday stress • More focus and mental clarity, even under pressure • Shifting more quickly into a state of calm and balance • Quieting the mind and letting go of racing thoughts • Strengthening inner resilience and recovering more quickly • Training coordination and reaction time for athletes • Complementing your own meditation practice Inner Balance Bluetooth sensor: clip the sensor to your earlobe and press the soft button on the sensor pod to activate a blue flashing light. Open the app and press the “Start” arrow to scan for the sensor. When your sensor ID appears and matches the number on the back of the pod, tap to accept and wait 15–20 seconds for calibration to begin your first session. Inner Balance Lightning sensor: follow the same steps to clip the sensor, open the app, and start your session. You can purchase an Inner Balance sensor at https://store.heartmath.com/innerbalance.

About

Apollo Neuro

This app uses silent sound wave vibrations to improve calm, focus, energy, and sleep. It offers instant stress relief and can be enhanced with a wearable device for deeper, long-term wellness benefits. Track your progress and integrate with other health apps.

Highlights
  • Silent sound wave vibrations
  • Instant stress relief
  • Improved calm and focus
  • Enhanced energy and sleep
  • Progress tracking
  • Smart health integrations
Features
Read full description

Feel Better, Backed by Science Apollo Neuro is the first science-backed technology that improves calm, focus, energy, and sleep. Apollo’s patented silent sound wave vibrations remind your body how to feel good, anytime, anywhere, by strengthening your resilience to stress and boosting vagus nerve activity through our sense of touch. Discover two powerful ways to experience Apollo: Meet Apollo Sessions – Instant Stress Relief Right from Your iPhone New to Apollo? Your journey to calm starts here. Apollo Sessions instantly transforms your iPhone into your personal wellness champion for FREE, using gentle, silent sound wave vibrations to quickly shift how you feel, without any additional hardware. • Instantly calm your mind or boost your energy • Easy to use—just download the app and open it on your iPhone • Start feeling better right away with a free trial Popular Sessions: • Espresso Shot – A caffeine-free boost for your day • Relax – Quickly unwind after stress • Let's Go – Enhance focus and clarity • Good Vibes – Ease into social settings Take Wellness Further with the Apollo Wearable – The Premium Experience Ready to go deeper? The Apollo wearable is the ultimate tool for continuous, scientifically validated stress relief and wellness improvement. It gently retrains your nervous system over time, enhancing resilience and overall well-being: • Reduce stress and anxiety • Improve sleep quality, fall asleep faster • Enhance focus and clarity • Accelerate physical recovery • Increase HRV for long-term wellness Why Choose the Wearable? Crafted by neuroscientists and physicians, Apollo’s wearable offers proven results. The more consistently you use it, the better you'll feel—physically, mentally, and emotionally. How Apollo Vibes™ Work: Apollo's gentle vibrations act like soothing music for your nervous system. Higher frequencies elevate your energy and sharpen your focus, while lower frequencies promote relaxation and deep sleep. Simply choose your vibe and let Apollo do the rest: • Energy – Stay energized and alert • Unwind – Effortlessly relax • Focus – Maintain clear, steady concentration • Sleep – Drift naturally into restful sleep • Recover – Recharge faster after workouts Key Features: • Custom Scheduling – Tailored vibes for your day • Progress Tracking – Visualize your improvement in sleep, stress, and focus • Smart Integrations – Seamlessly connects with Oura Ring, Apple Health, and more Science-Backed. Expert-Approved. Life-Changing. “With consistent use, Apollo helps your nervous system adapt, improving stress resilience and more. It sounds futuristic, but we're thrilled (and amazed) it truly works.” – Robb Report "Apollo’s effectiveness for extreme stress was clear from my very first session." – Men's Health "Designed to reduce stress and recalibrate the nervous system." – Wall Street Journal Awards: • Best of the Best, 2024 – Robb Report • Editors' Choice, 2023 – Well and Good • Best of CNET, 2023 – CNET • The Quality Edit Editors Pick, 2024 – Quality Edit Begin Your Apollo Journey: Download Apollo Sessions today, instantly find calm, and explore how the Apollo wearable can elevate your wellness journey.

Screenshots

Inner Balance4 screens
Apollo Neuro4 screens

Verdict

The call

The clearest difference is in-app purchases: Inner Balance at none against Apollo Neuro's 3. Inner Balance also leads on rating (4.8 vs 4.5) and review sentiment (83% vs 62%). Apollo Neuro's advantage is update cadence (every 3 weeks vs every 4 months) and device support (4 vs 2). On price, ads and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Apollo Neuro sells 3 in-app purchases, starting at $89.99 per year. Inner Balance asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Inner Balance holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Inner Balance has 18K ratings behind it against 1.9K, so its average is the more settled of the two. Written reviews point the same way: 83% of Inner Balance's written reviews are positive against 62% of Apollo Neuro's.

UpkeepUpdate frequency

Inner Balance ships an update every 4 months, Apollo Neuro every 3 weeks. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 3 level
Inner Balance versus Apollo Neuro: the parameters behind the verdict, then further details
ParameterInner BalanceApollo Neuro
PriceFreeFree
Rating4.8 (18K ratings) — better4.5 (1.9K ratings)
Positive reviews82.7% of reviews — better62.2% of reviews
Number of ratings18K — better1.9K
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.015.0 — better
Further details — not scored
Size21 MB650 MB
Age rating+44+
DeveloperHeartMath Inc.Apollo Neuro

Customer experience

Inner Balance

All ratings17,907 ratings
Positive96.7%
Neutral2.2%
Negative1.1%
Written reviews439 reviews
Positive82.7%
Neutral5.5%
Negative11.8%

Apollo Neuro

All ratings1,897 ratings
Positive86.0%
Neutral4.2%
Negative9.9%
Written reviews376 reviews
Positive62.2%
Neutral8.5%
Negative29.3%

User reviews

Inner Balance

From 18K App Store ratings

What we love

  • 💗 Coherence integration
  • 💤 Helps with sleep
  • 🧘‍♀️ Calms the mind
  • 🧠 Improves focus and concentration
  • 🧠 Helps with emotional regulation

Room to improve

  • 🐛 Connectivity issues with sensor
  • 🐛 Sensor durability concerns
  • 🕰️ Lag in real-time feedback
  • 🤖 Finds it challenging to maintain high coherence scores
  • 🤖 Feels like trying to please the app rather than focusing on self

Apollo Neuro

From 1.9K App Store ratings

What we love

  • 🚀 Effective for anxiety, sleep, and focus
  • 👍 Discreet and comfortable to wear
  • 🤩 Noticeable benefits like improved sleep and HRV
  • 🧘‍♀️ Helps with relaxation, grounding, and managing stress
  • ⚡️ Provides an energy boost when needed

Room to improve

  • 🔋 Battery life issues, device needs frequent charging
  • 🐛 Connectivity and app stability problems
  • 💰 Expensive device and subscription model
  • 🤖 App is buggy, unintuitive, and lacks key features
  • 🔒 Concerns about lack of user control and data privacy

Bugs and requests

Inner Balance

Reported bugs

3 issues
  • App crashes when stopping a session
  • Sensor disconnection issues
  • Inconsistent heart rate readings compared to other devices

Requested features

5 requests
  • Add audio breath pacing
  • Implement guest mode to separate user data
  • Develop an Apple Watch version
  • Provide more detailed progress tracking and analytics
  • Include more breathing technique options

Apollo Neuro

Reported bugs

4 issues
  • Scheduled sessions not always starting as planned
  • Bluetooth connectivity issues and device not pairing properly
  • App crashes, freezes, and general instability
  • Usage data not tracking accurately in the app

Requested features

5 requests
  • Apple Watch integration for easier control
  • More customization options for schedules and modes
  • Longer duration for programs and vibration patterns
  • Improved sleep tracking and integration with other health apps
  • Ability to use device without the app

In-app purchases

None

Inner Balance

No in-app purchases

3 purchases

Apollo Neuro

Subscriptions3
  • Sessions Premium (Yearly)7 Days trial$89.991 Year
  • SmartVibes One Year1 Month trial$99.991 Year
  • Apollo Pro - Yearly$159.991 Year

Questions

Is Inner Balance free?
Inner Balance is free to download, with no in-app purchases.
Is Apollo Neuro free?
Apollo Neuro is free to download, with in-app purchases available.
Which has better reviews, Inner Balance or Apollo Neuro?
Inner Balance is rated higher. Inner Balance averages 4.8 out of 5 from 18K ratings, while Apollo Neuro averages 4.5 from 1.9K ratings.
Do Inner Balance or Apollo Neuro have ads?
Neither Inner Balance nor Apollo Neuro shows ads.
Which is updated more often, Inner Balance or Apollo Neuro?
Inner Balance ships an update every 4 months, and Apollo Neuro every 3 weeks. Most recently, Inner Balance was updated on November 8, 2026 and Apollo Neuro on November 6, 2026.

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