Comparison

Iris Macros vs Studio KSL by Katrina Scott

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

Head to head
About

Iris Macros

This app uses AI to estimate the macronutrients in your meals from a photo. It offers instant insights into calories, fats, proteins, and carbohydrates without manual input. Enjoy a private and intuitive experience for healthier eating.

Highlights
  • AI-powered macro estimation from photos
  • Instant nutrient insights (calories, macros)
  • Anonymous and private user experience
  • Intuitive and user-friendly interface
  • User-controlled data management
  • No personal information required for use
Features
Read full description

Discover a Healthier You with the Power of AI Welcome to Iris: AI Macros Estimator, designed to simplify your nutritional journey with just a snap of your meal. Say goodbye to manual tracking and hello to instant macro estimates, enabling you to make informed dietary decisions on the go. Why Iris? Instant Nutrient Insights: Capture an image of your food, and let Iris do the rest. Get accurate estimates of calories, fats, proteins, and carbohydrates without the hassle of manual input. Anonymity and Privacy First: Your privacy is our priority. Use Iris anonymously without sacrificing any personal information, and enjoy a secure experience with peace of mind. Intuitive Design: With a user-friendly interface, Iris makes nutrition tracking as simple as uploading a photo. Spend less time logging and more time enjoying your meals. Seamless Data Management: Uploaded images are untraceable and private. Have full control over your data, with the ability to delete it anytime. Features: AI-Powered Macronutrient Estimation: Get instant macro breakdowns from your meal photos. Data Privacy and Security: Enjoy a completely anonymous and secure app experience. User-Controlled Data: Easily manage and delete your data as you see fit. No Personal Information Required: Start tracking without any signup or personal information. Whether you're a fitness enthusiast, someone on a specific diet, or just looking to make healthier food choices, Iris: Macros is your best companion. Transform the way you track your meals and nutrients with the latest in AI technology. Download Iris Macros today and take the first step towards a healthier, more informed you! After the free trial, continue unlocking your dietary insights with a subscription. Choose our monthly or annual plan to get unlimited access to macro estimates, detailed analyses, and uninterrupted experience. Manage your subscription directly in the App Store—cancel anytime. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.didierfuentes.com/macros-privacy-policy/ For any inquiries or support, please contact us at contact@didierfuentes.com.

About

Studio KSL by Katrina Scott

This app offers a comprehensive health and fitness experience with a certified personal trainer. Access a wide variety of on-demand and live workouts, mindfulness practices, and wellness programs. Connect with a supportive community and track your progress with personalized schedules and goal-setting tools.

Highlights
  • New workouts weekly
  • Extensive on-demand workout library
  • Live studio classes
  • Community connection features
  • Personalized fitness programs
  • Offline workout viewing
  • Goal setting and journaling
Features
Read full description

Welcome to Studio KSL with your trainer, Katrina Scott— the ultimate health and fitness app empowering you through movement, mindfulness, and connection. Katrina Scott is a NCCA Accredited NASM Certified Personal Trainer and offers strength training, yoga sculpt, cardio workouts, pregnancy routines, meditations, and wellness programs with her signature pillars: Kinetics, Strength, and Longevity. STUDIO KSL FEATURES: New Workouts Every Week to Keep You Motivated You’ll always have fresh new classes to look forward to at Studio KSL Extensive On-Demand Workout Library   Workout anytime, anywhere! Choose from Strength Training, Yoga Sculpt, Stretching, Cardio, Meditations, Pregnancy, and MORE! Live Studio Classes  Join Katrina and other members live and stream studio classes in real-time. All classes are recorded and available on-demand Exclusive Access to 'Studio Connect' Access an intimate community space for meaningful connection and friendship. Includes Member Groups, Messaging, and Support Weekly Schedule & Monthly Calendars You’ll know exactly what to do each week with tailored fitness schedules Fitness Programs Aligned with your Goals   Join fitness programs designed and catered to specific life chapters and goals KSL Sessions; Bonus Feature- Complete Guided Circuits, Stretching, & Cardio Workouts while listening to your own music or a podcast. Great for the gym or travel Goal Setting, Journal Reflections, and Mindfulness  Set goals, track your progress, and journal each day within your built-in calendar Custom Search Search by body focus, class type and duration Flexible Music & Non-Music Options Elevate your workout experience by integrating your favorite tunes. Studio KSL syncs seamlessly with your accounts on Spotify or Apple Music, giving you the freedom to choose your perfect playlist Workout Anywhere, Anytime Studio KSL makes staying active simple and seamless, no matter where you are. Stream workouts effortlessly from any device, whether you're at home, traveling, or in the gym. Your fitness routine is always within reach. Plus, we know that wifi isn't always possible—that's why Studio KSL offers offline viewing. Download your favorite sessions within the app in advance and keep your momentum going, even without internet access. Accessibility Enable closed-captions to enhance accessibility. Great for users who are deaf or hard of hearing FITNESS PROGRAMS: Signature KSL Program Get ready to feel strong and empowered for 8 weeks! This program includes a powerful combination of strength training, yoga, cardio, meditations, and sculpting workouts. You're going to see and feel incredible results from this program. KSL Pregnancy Program The Pregnancy Program is your ultimate 34-week guide to staying strong, supported, and connected throughout every stage of pregnancy. With trimester-specific workouts, mindfulness practices, and weekly check-ins and resources from your trainer, this program is designed to nurture both you and your growing baby. A LETTER FROM YOUR TRAINER I'm so grateful that we're connected! My passion is in kinetics, wellness, and helping women achieve strength and overall wellness. I love teaching and continuing to learn about health, fitness, and nutrition so I can best support you in every aspect of your life. My greatest honor is being your trainer. I can’t wait to see you thrive as we work together to achieve your goals through movement, strength, and longevity. Sincerely, Katrina Scott Bachelor's Degree, Health Science NCCA Accredited NASM Certified Personal Trainer  Women’s Fitness Specialist | Prenatal & Postnatal NASM Certified Nutrition Coach Your fitness journey starts here. Download Studio KSL today! Terms & Conditions: https://shop.studioksl.com/pages/terms-conditions Privacy Policy: https://shop.studioksl.com/pages/privacy-policy

Screenshots

Iris Macros3 screens
Studio KSL by Katrina Scott4 screens

Verdict

The call

The clearest difference is ratings volume: Studio KSL by Katrina Scott at 200 against Iris Macros's 1. Studio KSL by Katrina Scott also leads on iOS requirement (15.1 vs 17.0). On price, rating, update cadence 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. Iris Macros sells 2 in-app purchases, starting at $2.99 per month and Studio KSL by Katrina Scott sells 4 in-app purchases, starting at $27.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Iris Macros against 4.9 for Studio KSL by Katrina Scott. That said, the two scores are not equally well evidenced: Studio KSL by Katrina Scott has 200 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Iris Macros ships an update every 2 weeks, Studio KSL by Katrina Scott every 3 weeks. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Iris Macros versus Studio KSL by Katrina Scott: the parameters behind the verdict, then further details
ParameterIris MacrosStudio KSL by Katrina Scott
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (200 ratings)
Positive reviews—96.6% of reviews
Number of ratings1200 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
Ads—No
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size21 MB120 MB
Age rating4+4+
DeveloperDidier FuentesKatrina Scott

Customer experience

Iris Macros

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Studio KSL by Katrina Scott

All ratings200 ratings
Positive97.0%
Neutral1.0%
Negative2.0%
Written reviews145 reviews
Positive96.6%
Neutral1.4%
Negative2.1%

Bugs and requests

Iris Macros

Not enough reviews yet to summarise bugs or requests.

Studio KSL by Katrina Scott

Reported bugs

1 issue
  • Occasional app crashes or freezes

Requested features

2 requests
  • Dark mode option
  • More advanced analytics and progress tracking

In-app purchases

2 purchases

Iris Macros

Subscriptions2
  • Unlimited Access$2.991 Month
  • Unlimited Access$29.991 Year
4 purchases

Studio KSL by Katrina Scott

Subscriptions4
  • Monthly Membership7 Days trial$27.991 Month
  • Annual Membership7 Days trial$159.001 Year
  • $159 annual7 Days trial$159.001 Year
Show 1 more
  • Annual Membership - Standard Price7 Days trial$199.001 Year

Questions

Is Iris Macros free?
Iris Macros is free to download, with in-app purchases available.
Is Studio KSL by Katrina Scott free?
Studio KSL by Katrina Scott is free to download, with in-app purchases available.
Which has better reviews, Iris Macros or Studio KSL by Katrina Scott?
Iris Macros is rated higher. Iris Macros averages 5.0 out of 5 from 1 ratings, while Studio KSL by Katrina Scott averages 4.9 from 200 ratings.
Which is updated more often, Iris Macros or Studio KSL by Katrina Scott?
Iris Macros ships an update every 2 weeks, and Studio KSL by Katrina Scott every 3 weeks. Most recently, Iris Macros was updated on October 3, 2026 and Studio KSL by Katrina Scott on October 24, 2026.

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