Comparison

SleepStream 2 Ultimate 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

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.

Highlights
  • 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
Features
Read full description

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.

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

SleepStream 2 Ultimate4 screens
Apollo Neuro4 screens

Verdict

The call

The clearest difference is price: Apollo Neuro at Free against SleepStream 2 Ultimate's $9.99. Apollo Neuro also leads on update cadence (every 3 weeks vs every 2 months) and ratings volume (1.9K vs 188). SleepStream 2 Ultimate's advantage is in-app purchases (none vs 3) and review sentiment (81% vs 62%). On 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

CostPrice · In-app purchases · Ads · Monetization

Apollo Neuro is free to download; SleepStream 2 Ultimate costs $9.99 up front. Apollo Neuro sells 3 in-app purchases, starting at $89.99 per year. SleepStream 2 Ultimate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for SleepStream 2 Ultimate against 4.5 for Apollo Neuro. That said, the two scores are not equally well evidenced: Apollo Neuro has 1.9K ratings behind it against 188, so its average is the more settled of the two. Written reviews are what separate them: 81% of SleepStream 2 Ultimate's written reviews are positive against 62% of Apollo Neuro's.

UpkeepUpdate frequency

SleepStream 2 Ultimate ships an update every 2 months, Apollo Neuro every 3 weeks. Both last shipped on October 26, 2026.

Scorecard7 real differences · 3 level
SleepStream 2 Ultimate versus Apollo Neuro: the parameters behind the verdict, then further details
ParameterSleepStream 2 UltimateApollo Neuro
Price$9.99Free — better
Rating4.5 (188 ratings)4.5 (1.9K ratings) — better
Positive reviews81.4% of reviews — better62.2% of reviews
Number of ratings1881.9K — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS9.0 — better15.0
Further details — not scored
Size32 MB650 MB
Age rating12+4+
DeveloperExplosive AppsApollo Neuro

Customer experience

SleepStream 2 Ultimate

All ratings188 ratings
Positive85.6%
Neutral3.2%
Negative11.2%
Written reviews194 reviews
Positive81.4%
Neutral5.2%
Negative13.4%

Apollo Neuro

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

User reviews

SleepStream 2 Ultimate

From 188 App Store ratings

What 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

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

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

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

SleepStream 2 Ultimate

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 SleepStream 2 Ultimate free?
SleepStream 2 Ultimate costs $9.99, with no in-app purchases.
Is Apollo Neuro free?
Apollo Neuro is free to download, with in-app purchases available.
Which has better reviews, SleepStream 2 Ultimate or Apollo Neuro?
Apollo Neuro is rated higher. SleepStream 2 Ultimate averages 4.5 out of 5 from 188 ratings, while Apollo Neuro averages 4.5 from 1.9K ratings.
Do SleepStream 2 Ultimate or Apollo Neuro have ads?
Neither SleepStream 2 Ultimate nor Apollo Neuro shows ads.
Which is updated more often, SleepStream 2 Ultimate or Apollo Neuro?
SleepStream 2 Ultimate ships an update every 2 months, and Apollo Neuro every 3 weeks. Most recently, SleepStream 2 Ultimate was updated on October 26, 2026 and Apollo Neuro on October 26, 2026.

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