Comparison

Suji vs Solius

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

Head to head
About

Suji

This app utilizes targeted compression technology to alleviate joint pain and enhance isolated muscle strength. It aids in accelerating muscle recovery, requiring a compatible device. It is not intended for professional sports medicine training.

Highlights
  • Targeted compression technology
  • Joint pain relief
  • Increase isolated muscle strength
  • Accelerate muscle recovery
  • Requires compatible device
Features
Read full description

Build Muscle With Less Joint Strain. Recover Faster. Suji uses smart, targeted compression to help you strengthen your muscles with lighter loads and accelerate muscle recovery. Access expert-guided workouts or create your own sessions, with personalized compression that automatically calibrates to your body. Build muscle and recover anywhere, anytime. Suji Gen1 or Suji Gen2 device required. NOTE: This app is designed for individual use. Sports medicine professionals, physical therapists and athletic programs should download the Suji Teams app.

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

Suji4 screens
Solius4 screens

Verdict

The call

The clearest difference is review sentiment: Solius at 100% against Suji's 50%. Solius also leads on rating (5.0 vs 3.6) and in-app purchases (none vs 1). On price, update cadence, 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

Both are free to download. Suji sells 1 in-app purchase, starting at $4.99 per month. Solius asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Solius holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Solius has 70 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 50% of Suji's written reviews are positive against 100% of Solius's.

UpkeepUpdate frequency

Suji ships an update monthly, Solius every 3 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
Suji versus Solius: the parameters behind the verdict, then further details
ParameterSujiSolius
PriceFreeFree
Rating3.6 (12 ratings)5.0 (70 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings1270 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size499 MB237 MB
Age rating12+4+
DeveloperSujiBFRSolius Labs, Inc.

Customer experience

Suji

All ratings12 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews12 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Solius

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

In-app purchases

1 purchases

Suji

Subscriptions1
  • Suji Athlete Subscription1 Month trial$4.991 Month
None

Solius

No in-app purchases

Questions

Is Suji free?
Suji is free to download, with in-app purchases available.
Is Solius free?
Solius is free to download, with no in-app purchases.
Which has better reviews, Suji or Solius?
Solius is rated higher. Suji averages 3.6 out of 5 from 12 ratings, while Solius averages 5.0 from 70 ratings.
Do Suji or Solius have ads?
Neither Suji nor Solius shows ads.
Which is updated more often, Suji or Solius?
Suji ships an update monthly, and Solius every 3 weeks. Most recently, Suji was updated on October 16, 2026 and Solius on October 18, 2026.

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