Comparison

Somnee vs Halo

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

Head to head
About

Somnee

This app works with a smart headband to improve sleep quality using personalized neurostimulation and EEG tracking. It provides detailed sleep reports and insights to help you sleep faster, longer, and deeper.

Highlights
  • Personalized sleep neurostimulation
  • Clinical-grade EEG sleep tracking
  • Detailed sleep performance reports
  • AI sleep coach
  • Phone-free session start
  • Comfortable, breathable headband design
Features
Read full description

Meet Somnee, the app that works with the award-winning smart sleep headband that directly improves sleep quality and decodes nightly sleep performance for unrivalled insights. As your own clinical-grade AI sleep coach, Somnee pairs proven personalized neurostimulation that helps you naturally sleep faster, longer, and deeper, with precise sleep reports powered by lab-grade EEG tracking. IMPROVE 360° SLEEP HEALTH Somnee is proven to cut time to fall asleep by 50%, reduce wake-ups by 33%, and boost total sleep time by ~30 min. It’s 4x more effective than melatonin, 2x more effective than CBT-i, and 1.5x more effective than Ambien. PERSONALIZED SLEEP NEUROSTIMULATION Somnee maps the unique way your brain sleeps, then delivers gentle frequencies to boost your optimal sleep signals. The result: a dynamic, effective, 100% personalized sleep system that evolves with you as your sleep changes over time. BRAIN-BASED TRACKING + SLEEP REPORTS Clinical-grade EEG+ sensors collect precise brainwave data straight from the source, uploading 40x more sleep data than most trackers. Explore reports featuring insights into sleep onset, sleep stages, and more. PHONE-FREE USE, ALL-NIGHT COMFORT Start sessions phone-free with just the click of the headband button. Somnee’s soft, breathable fabric and innovative design molds to you for maximum comfort, no matter how you sleep. MADE BY WORLD-RENOWNED SLEEP NEUROSCIENTISTS Developed over 7 years of R&D by Dr. Matthew Walker (Author of NYT Bestseller, “Why We Sleep”), Dr. Bob T. Knight. Dr. Ram Gurumoorthy, and Dr. Rich Irvy — Somnee leverages cutting edge neuroscience used by top sleep labs for decades, now made available from the comfort of home. Our real-world results are clinically proven and published in the peer-reviewed scientific journal, Frontiers in Human Neuroscience. Have questions? We’re here to help. Email us at support@somneesleep.com. Terms of Use: www.somneesleep.com/pages/privacy-policy-and-terms-of-use/ www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Halo

This app uses a wearable device to deliver gentle electrical currents to the brain, aiming to improve mood, sleep, and focus. It guides users through sessions, tracks progress, and offers educational content for wellness goals.

Highlights
  • Transcranial direct current stimulation (tDCS)
  • Mood improvement
  • Better sleep support
  • Enhanced focus
  • Usage tracking
  • Educational content
Read full description

Improved mood. Better sleep. Sharper focus. Clinically tested. Halo is a wellness device and companion app that uses transcranial direct current stimulation (tDCS) to support mood, sleep, and focus. It delivers low-level electrical currents to the prefrontal cortex - an area of the brain linked to emotional regulation, sleep quality, and attention control. The Halo app guides you through stimulation sessions, tracks your usage, and offers regular check ins and educational content to help reach your wellness goals. Developed by the team behind Flow Neuroscience, a leader in clinical brain stimulation. Halo is built on Flow’s proven brain stimulation platform - technology that’s supported thousands of people in Europe. What Halo helps with: * Improving your mood * Better sleep so you wake feeling more refreshed * Enhance your focus so you perform better at work and day to day * Building better routines that align with your goals How does Halo work? Halo is a brain stimulation wearable that uses transcranial direct current stimulation (tDCS). It delivers gentle, low-intensity electrical currents to the prefrontal cortex, a region of the brain involved in cognitive and emotional processes. Who it's for: * Wellness-focused individuals seeking safe, natural tools * Anyone looking to improve their mood, sleep or focus. * High-performers, creatives, and biohackers Halo is a general wellness product designed to support wellbeing. Halo is not approved or cleared by the FDA and is not intended, marketed, or sold to treat or cure any disease or condition. Halo is intended for use by healthy adult individuals. At this time, Halo is only available for shipment within the United States.

Screenshots

Somnee4 screens
Halo4 screens

Verdict

The call

The clearest difference is rating: Halo at 5.0 against Somnee's 3.7. Halo also leads on monetization model (free vs paid). Somnee's advantage is ratings volume (71 vs 2) and review sentiment (63% vs 50%). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Halo holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Somnee has 71 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of Somnee's written reviews are positive against 50% of Halo's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
Somnee versus Halo: the parameters behind the verdict, then further details
ParameterSomneeHalo
PriceFreeFree
Rating3.7 (71 ratings)5.0 (2 ratings) — better
Positive reviews63.3% of reviews — better50.0% of reviews
Number of ratings71 — better2
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size164 MB176 MB
Age rating4+17+
DeveloperStimScienceFlow Neuroscience AB

Customer experience

Somnee

All ratings71 ratings
Positive64.8%
Neutral2.8%
Negative32.4%
Written reviews60 reviews
Positive63.3%
Neutral5.0%
Negative31.7%

Halo

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Somnee

Reported bugs

18 issues
  • App malfunctions and prevents use
  • Sleep reports are delayed or unavailable
  • Device asks for reset in the middle of the night but won't restart
  • App stops tracking sleep if woken up and button is pressed
  • Device inaccurately registers sleep patterns (e.g., REM sleep)
Show 13 more
  • App says user is not due for another session after taking device off
  • Headband falls off frequently
  • App is not intuitive and lacks instruction
  • New UI is missing reports
  • Headband is not reliable and asks for reset
  • App is buggy and prevents use (e.g., 'cool down mode')
  • Bad connection with electrodes
  • Device doesn't track sleep stages
  • Customer service is evasive with answers
  • Trial period starts from order date, not activation date
  • Subscription is required for cancellation
  • App is extremely buggy and data is useless
  • App prevents use due to 'cool down mode'

Requested features

8 requests
  • Add more sleep tones or meditation sounds
  • Provide a better tutorial on data interpretation
  • Improve headband design for comfort
  • Offer bulk electrode sales
  • Provide warranty on the headband
Show 3 more
  • Add a dark mode to the app
  • Track sleep stages for real-time feedback
  • Easier way to update payment information

Halo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Somnee

No in-app purchases

None

Halo

No in-app purchases

Questions

Is Somnee free?
Somnee is free to download, with no in-app purchases.
Is Halo free?
Halo is free to download, with no in-app purchases.
Which has better reviews, Somnee or Halo?
Halo is rated higher. Somnee averages 3.7 out of 5 from 71 ratings, while Halo averages 5.0 from 2 ratings.
Do Somnee or Halo have ads?
Neither Somnee nor Halo shows ads.
Which is updated more often, Somnee or Halo?
Somnee ships an update every 2 months, and Halo every 2 months. Most recently, Somnee was updated on October 16, 2026 and Halo on October 1, 2026.

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