Comparison

Fullpower® Sleep vs Solius

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

Head to head
About

Fullpower® Sleep

This app requires specific hardware and an invitation from your provider for sleep monitoring. It facilitates account setup, guides hardware installation, and automatically sends sleep data to your provider. Users can view real-time device status and historical sleep data, with an option to share with Apple Health.

Highlights
  • Provider-issued invitation required
  • Guided hardware setup
  • Automatic sleep monitoring
  • Real-time device status
  • Historical sleep data viewing
  • Apple Health integration
Read full description

** The Fullpower® Sleep Monitor iOS app requires special hardware and an invitation issued by your provider. You will not be able to create an account without an invitation. Only hardware issued by your provider is compatible with this app. ** KEY FEATURES: • Once invited, setup an account conveniently within the app • Guided setup to walk you through setting up your hardware • Once setup is complete, there’s nothing more required. Monitoring is automatic and data is sent directly to your provider. • Use the app to view real-time status of the device and service • Use the app to view your past historical data • Share your sleep data to the Apple Health app. If you need assistance with your account, hardware or the app itself, please contact your issuing provider directly. Fullpower® does not have access to this information. Terms of Use: https://www.fullpower.com/static/doc/18/end-user-license-agreement-for-fullpower-standalone-apps Privacy Policy: https://rx.sleeptracker.com/userportal/webview/privacyNotice

About

Solius

This app pairs with a UVB light therapy device to deliver personalized doses of UVB light based on your skin tone. It offers guided sessions, reminders, and progress tracking for year-round health benefits. The device is FDA-cleared and requires no prescription.

Highlights
  • Personalized UVB dosing based on skin tone
  • FDA-cleared over-the-counter device
  • Short weekly sessions (approx. 5 minutes)
  • Guided session setup and safety checks
  • Weekly reminders and progress tracking
  • Therapy history and trends
Features
Read full description

A smarter, safer way to stimulate the UVB health benefits of the sun is finally here. Solius is the only FDA-cleared over-the-counter UVB light therapy device that analyzes your unique skin tone to deliver a precise, optimal dose of UVB light, activating the natural health benefits of the sun with less than 1% of the total UV risk. The Solius app pairs with a Solius device, which is required for use and is sold separately at solius.com. PERSONALIZED DOSING FOR YOUR SKIN Solius scans your skin with a built-in sensor and automatically calculates a dose designed for your unique tone, so every session delivers an optimal dose of UVB light therapy. FDA-CLEARED, NO PRESCRIPTION NEEDED Solius is the only UVB light therapy device cleared by the FDA for over-the-counter use, reviewed under the Class II medical device pathway for safety, performance, and quality. APPROXIMATELY FIVE MINUTES, ONCE A WEEK A single short session, once per week, is designed to maintain the UVB light-driven benefits your body relies on year round, regardless of season, weather, or where you live. GUIDED SESSION FLOW Step-by-step in-app guidance walks you through positioning, session length, and safety checks to ensure you get the full benefit of each dose without guesswork. STREAKS AND WEEKLY REMINDERS Smart reminders nudge you when it's time for your next dose. Weekly streaks and progress views help consistency turn into results and whole body benefits. THERAPY HISTORY AND TRENDS Review every session at a glance: date, duration, dose, and therapy timespan. SAFETY The Solius dosing sensor calculates an optimal safe dose. A full year of weekly Solius therapy adds up to less total UV than about five minutes of natural midday sun. HOW IT WORKS 1. Download the Solius app and create an account, allowing you to pair with your Bluetooth® connected Solius device to complete set up and control your device. 2. Set up anytime, anywhere: Solius is easy to set up, no mounting or installation required. 3. Personalize your dose: The Solius app guides you through smart skin analysis to calculate your optimal dose. 4. Repeat therapy weekly: Use Solius for approximately five minutes a week to maximize year-round benefits. INDICATION FOR USE Solius is an over-the-counter (OTC) light panel intended to stimulate production of Vitamin D in people 22 years and older. CONTRAINDICATIONS FOR USE Do not use Solius if: - You have a history of underlying photosensitivity. - You currently use any of the following photosensitizing medications orally or topically on the therapy area (back of torso from waist to neck): anti-convulsant, amiodarone, doxycycline, hydrochlorothiazide, methotrexate, naproxen, sulfa antibiotics, tetracycline, or tretinoin. - You have been or become diagnosed with sensitivity or allergies to light affecting your skin, including but not limited to: actinic prurigo, chronic actinic dermatitis, lupus erythematosus, photodermatitis, polymorphous light eruption, protoporphyria, solar urticaria, UV-sensitive syndrome, vitiligo, or xeroderma pigmentosum. DISCLAIMER Solius is clinically proven to stimulate the production of vitamin D. References to the benefits of sunlight, UVB light, and vitamin D are based upon published, peer-reviewed research. The Solius device is not intended to diagnose, treat, cure, or prevent disease, except for the indications for use described in the user manual for your applicable region. Solius does not provide specific medical advice to users. Users should seek advice from a qualified physician or healthcare provider. This app does not establish a doctor-patient relationship. For detailed product information please consult the User Manual prior to use. Have questions? We’re here to help. Email us at support@solius.com. Privacy Policy: solius.com/legal/privacy-policy

Screenshots

Fullpower® Sleep3 screens
Solius4 screens

Verdict

The call

The clearest difference is update cadence: Solius at every 3 weeks against Fullpower® Sleep's every 3 months. On price, rating, review sentiment and ratings volume 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

On the App Store both sit at effectively the same score — 4.9 for Fullpower® Sleep against 5.0 for Solius. Both are backed by a comparable volume of ratings — 30 and 70 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Fullpower® Sleep ships an update every 3 months, Solius every 3 weeks. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 9 level
Fullpower® Sleep versus Solius: the parameters behind the verdict, then further details
ParameterFullpower® SleepSolius
PriceFreeFree
Rating4.9 (30 ratings)5.0 (70 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3070 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size93 MB237 MB
Age rating4+4+
DeveloperFullpower®Solius Labs, Inc.

Customer experience

Fullpower® Sleep

All ratings30 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Solius

All ratings70 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews31 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Fullpower® Sleep

No in-app purchases

None

Solius

No in-app purchases

Questions

Is Fullpower® Sleep free?
Fullpower® Sleep is free to download, with no in-app purchases.
Is Solius free?
Solius is free to download, with no in-app purchases.
Which has better reviews, Fullpower® Sleep or Solius?
Solius is rated higher. Fullpower® Sleep averages 4.9 out of 5 from 30 ratings, while Solius averages 5.0 from 70 ratings.
Do Fullpower® Sleep or Solius have ads?
Neither Fullpower® Sleep nor Solius shows ads.
Which is updated more often, Fullpower® Sleep or Solius?
Fullpower® Sleep ships an update every 3 months, and Solius every 3 weeks. Most recently, Fullpower® Sleep was updated on October 1, 2026 and Solius on October 9, 2026.

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