Comparison

My Derm vs Renu by Sam Thai

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

Head to head
About

My Derm

This app helps individuals manage inflammatory skin conditions by tracking symptoms, medications, and lifestyle factors. It provides access to reliable health news, educational resources, and direct messaging with hospital teams if available. Users can also link health data from other apps to gain insights into their condition.

Highlights
  • Personal health record
  • Medication and appointment reminders
  • Health newsfeed
  • Educational library
  • Hospital team messaging
  • Symptom and lifestyle tracking
  • Apple Health/Google Fit integration
Features
Read full description

My Derm is a free app that has been developed by experts to help people with inflammatory skin conditions live happier, healthier lives. JOIN FOR FREE & GAIN SUPPORT IN THE SELF-MANAGEMENT OF YOUR CONDITION: Personal health record: Maintain a record of your health, operations and tests to share with your clinical team. Reminders for medications and appointments: Schedule notifications to keep on top of your care. Newsfeed: Access trustworthy and relevant news relating to the inflammatory skin community. Library: Learn more about living with an inflammatory skin condition from BAS (British Association of Dermatology) and more. Message your hospital team: You can receive and send messages with your hospital team if your hospital is signed up! If your hospital is not yet signed up, let your clinical team know that you would like My Derm to be implemented in your hospital. Link your Apple Health or Google Fit: You can choose to link your data from the Apple Health app or Google Fit to share with your clinical team for read-only access. This will help you develop insights into how your lifestyle impacts your condition. Track your symptoms: Keep track of your symptoms and flares so that you can discover patterns in your health and habits. Doing so will help you to prolong periods of remission and reduce instances of relapse. You can also track your: Diet Exercise Pain Sleep Mood Stress Coming soon - Expert-led Courses! Build better habits with condition specific courses relating to sleep, medication, and wellbeing. Try single day activities or courses up to 28 days in length! OUR MESSAGE TO YOU: We know that living with an inflammatory skin condition can sometimes be difficult, lonely or tiring. It’s not always easy to manage symptoms during flare ups or know what steps to take to build a stronger wellbeing when you’re in remission. We’re a social-impact focused company, founded by patients and clinicians who are committed to improving the health and wellbeing of those with long-term inflammatory conditions. We believe that each individual deserves proper and accessible care to support their journey. We aim to provide you with practical tools and advice that can help you better track, manage and improve your health and wellbeing in the long-term. We hope that by joining our community, you gain more confidence in the self-management of your condition, alongside your regular clinical care. Find out more about My Derm: https://ampersandhealth.co.uk/myderm Join our online community! Instagram: www.instagram.com/ampersand_health www.facebook.com/ampersandhealthfb Twitter:www.twitter.com/myamphealth Have a question for us? Get in touch with us at info@ampersandhealth.co.uk

About

Renu by Sam Thai

Features
Read full description

Renu is the private 1:1 coaching app for clients of Sam Thai. Sam has coached since 2016. He built Renu for people who have trained for years and still don’t have the physique to show for it. Nothing in the app is a template. Everything is built around you and your data. What’s inside Your training. Block-based programming, rewritten as we go based on your real performance and recovery. Travel-week sessions for when life moves. Your nutrition. Your targets and meal structure, built to survive work dinners, travel and weekends. Daily and weekly check-ins. Log your numbers, photos and how the week went. Sam reviews every check-in and replies the same day. Direct messaging. Ask Sam the in-the-moment questions, Monday to Friday. One place for all of it. No spreadsheets, no scattered messages, no guessing what’s next. Please note: Renu is for current clients of Sam Thai. Access comes with your coaching, and places are limited. To apply, visit apply.coachsamthai.com Renu provides coaching and general fitness guidance. It isn’t medical advice. * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

Screenshots

My Derm4 screens
Renu by Sam Thai3 screens

Verdict

The call

The clearest difference is in-app purchases: My Derm at none against Renu by Sam Thai's 1. My Derm also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, 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. Renu by Sam Thai sells 1 in-app purchase, starting at $200.00 per month. My Derm asks for nothing beyond the download.

UpkeepUpdate frequency

My Derm ships an update every 5 weeks, Renu by Sam Thai every 4 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 6 level
My Derm versus Renu by Sam Thai: the parameters behind the verdict, then further details
ParameterMy DermRenu by Sam Thai
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size126 MB56 MB
Age rating12+17+
DeveloperAMPERSAND HEALTH LIMITEDSam Hughes

In-app purchases

None

My Derm

No in-app purchases

1 purchases

Renu by Sam Thai

Subscriptions1
  • Coaching$200.001 Month

Questions

Is My Derm free?
My Derm is free to download, with no in-app purchases.
Is Renu by Sam Thai free?
Renu by Sam Thai is free to download, with in-app purchases available.
Do My Derm or Renu by Sam Thai have ads?
Neither My Derm nor Renu by Sam Thai shows ads.
Which is updated more often, My Derm or Renu by Sam Thai?
My Derm ships an update every 5 weeks, and Renu by Sam Thai every 4 months. Most recently, My Derm was updated on November 7, 2026 and Renu by Sam Thai on November 5, 2026.

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