Comparison

MeThreeSixty vs CalmTide

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

Head to head
About

MeThreeSixty

Transform your phone into a 3D body scanner to accurately track your progress. Get detailed body measurements and visualize your changes with a personal 3D avatar. All your data stays private on your device.

Highlights
  • 3D body scanner using smartphone
  • 14+ trackable body measurements
  • 3D body avatar with comparisons
  • Body composition tracking
  • FutureMe goal visualization
  • On-device privacy
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YOUR BODY JOURNEY. ALL IN ONE PLACE.   MeThreeSixty brings your body progress together in one app. Scan your body in 3D, track measurements and body composition, follow your weight and goals, and keep your GLP-1 dose history alongside the changes happening to your body.   With a redesigned Home, the tools and information that matter to your journey are easier to access, track, and understand.     POWERFUL 3D BODY SCANNING   Turn your phone's camera into a powerful 3D body scanner. Two quick poses, front and side, are all it takes.   MeThreeSixty creates your personal 3D body avatar, captures 14+ body measurements, and helps you see how your body is changing over time. No tape measure. No expensive equipment. No guesswork. Always free.     MORE THAN A WEIGHT TRACKER   The scale only tells part of the story. Follow body composition, lean body mass, body fat percentage, and circumference measurements across your waist, hips, chest, arms, and more.   Track progress visually and numerically to get a more complete picture of how your body is changing.     TRACK YOUR GLP-1 JOURNEY   Keep your medication history together with the body data that matters most. Record medications, doses, injection sites, and notes while continuing to follow your weight, measurements, body composition, goals, and 3D body scans.   Don't just track the dose. See the bigger picture of your progress.     SET GOALS. FOLLOW YOUR PROGRESS.   Set goals for the body metrics that matter to you and follow your progress toward them over time. Your redesigned Home brings your goals, latest updates, measurements, scans, and dose tracking together for easier access to your journey.     SEE YOUR TRANSFORMATION IN 3D   Watch your body evolve with every scan through your personal 3D avatar. Compare scans side-by-side to see how your shape changes over time.   With FutureMe, explore a data-powered preview of your aspirational body. And with FutureMe Moment, create an inspiring look at the person you're working toward.     BUILT FOR PRIVACY   MeThreeSixty never uploads your photos to the cloud. The app scans your silhouette, not your image, so your image stays private and on your device.     A SMARTER ALTERNATIVE TO DEXA SCANS   Get detailed body composition insights without clinic appointments, high costs, or radiation. Powerful body tracking in your pocket, anytime, anywhere.     GO PREMIUM   Unlock the full MeThreeSixty experience with Premium, including additional fitness tracking metrics, unlimited scan history, faster processing, and long-term weight tracking trends.     KEY FEATURES   • 3D body scanning using only your smartphone  
• 14+ trackable body measurements  
• Body composition including lean mass, body fat, BMI, and more  
• GLP-1 dose and medication tracking  
• Goal setting and progress tracking  
• 3D body avatar with side-by-side scan comparisons  
• FutureMe and FutureMe Moment  
• Weight and measurement trends  
• Apple Health sync  
• On-device privacy: photos are never uploaded to the cloud     You're more than a number on a scale. See more of your progress and follow more of your journey with MeThreeSixty.     Terms of use: https://www.sizestream.com/mobile-app-terms-and-conditions

About

CalmTide

Features
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Lower your baseline cortisol. CalmTide reads the Apple Health data you already have — sleep, HRV, workouts, resting heart rate, mindful minutes — and turns it into one clear picture of your stress biology: an HPA Balance Score today, and an estimated baseline-cortisol trend over 8 weeks. Not another meditation timer. A measurement layer for calm. Everything runs on your device. No account, no cloud, no analytics. Your health data never leaves your phone. SEE TODAY CLEARLY • HPA Balance Score (0–100) from a named, citation-backed model — tap any number to see the research behind it • One smart recommendation, chosen for today — not a generic list • A daily protocol checklist: breathwork, Zone 2, sleep, morning light • Recovery signals at a glance: HRV, resting heart rate, sleep, respiratory rate • Where your HRV and resting heart rate sit against typical ranges for your age and sex (Pro) FIND YOUR PATTERNS • Morning-after insights: what caffeine, alcohol, late meals and hard workouts did to your HRV, sleep and readiness — read the next morning, when the biology actually lands • What your check-ins reveal (Pro): whether how you feel actually tracks your sleep, HRV and training, compared across your own days • Your strongest cortisol link, from your own data — suggestive, not causal, and always explained • Personal records: longest streak, best HPA week, calmest morning UNDERSTAND YOUR WEEK • A weekly retrospective that ranks exactly what moved your score — sleep, morning light, HRV, mindfulness, training load — in points, this week versus last • Every workout with heart-rate data scored for its cortisol effect: reducing, neutral, or spiking. Sessions without it still count toward your weekly dose — they are never guessed at • Training load as plain figures: acute-to-chronic ratio, monotony and strain (Pro) ACT ON IT • Practice hub: cyclic sighing (Balban 2023) and resonance breathing (Steffen 2020), in 2, 5 or 10-minute doses, suggested by situation — evening wind-down, post-workout, elevated load • Completed sessions save to Apple Health as Mindful Minutes • Morning-light coaching to anchor your body clock — the clock that times your morning cortisol rise • Smart, quiet notifications that arrive when they help — never to interrupt WATCH YOUR BASELINE FALL • An 8-week estimated baseline-cortisol trend with your life events pinned to it — illness, travel, deadlines — so shifts make sense • A 7-day cortisol forecast from your training and sleep (Pro) • Check in from your wrist with the Apple Watch app PRIVATE BY DESIGN • On-device analysis, including the optional Calm Coach explainer • Export or restore your data any time — it's yours • App Privacy label: Data Not Collected CalmTide is free to use daily. CalmTide Pro (full 8-week trend, extended 60- and 90-day history, the cortisol forecast, score & forecast widgets, scores on Apple Watch, advanced training-load analytics and Calm Coach) is available as a monthly or annual subscription, or a one-time lifetime purchase. New subscribers get a 1-month free trial. Subscriptions auto-renew until cancelled; the price and any trial are shown before you confirm. CalmTide is a wellness tool. It estimates — it does not measure cortisol, and it does not diagnose or treat any medical condition.

Screenshots

MeThreeSixty4 screens
CalmTide4 screens

Verdict

The call

The clearest difference is update cadence: CalmTide at every 10 days against MeThreeSixty's monthly. CalmTide also leads on device support (3 vs 1). MeThreeSixty's advantage is iOS requirement (16.6 vs 18.6). On price, 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. MeThreeSixty sells 6 in-app purchases, starting at $1.99 per month and CalmTide sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MeThreeSixty ships an update monthly, CalmTide every 10 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
MeThreeSixty versus CalmTide: the parameters behind the verdict, then further details
ParameterMeThreeSixtyCalmTide
PriceFreeFree
Rating4.7 (18K ratings) — better—
Positive reviews26.9% of reviews—
Number of ratings18K — better—
Update frequencyMonthlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS16.6 — better18.6
Further details — not scored
Size310 MB9 MB
Age rating17+12+
DeveloperSize Stream LLCMichael Smith

Bugs and requests

MeThreeSixty

Reported bugs

3 issues
  • Scan processing issues
  • Compatibility problems with certain devices
  • Login/account verification problems

Requested features

3 requests
  • 360-degree body scan
  • Ability to manually correct measurements
  • Yearly subscription option

CalmTide

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

MeThreeSixty

Subscriptions6
  • Me360 Monthly$1.991 Month
  • Premium Monthly Subscription2 variants$4.991 Month
  • Me360 Monthly$4.991 Month
Show 3 more
  • Premium Annual Subscription$19.991 Year
  • Premium Annual Subscription$29.991 Year
  • Premium Annual Subscription$39.991 Year
3 purchases

CalmTide

Subscriptions2
  • Monthly$4.991 Month
  • Annual1 Month trial$29.991 Year
One-time1
  • Lifetime$59.99

Questions

Is MeThreeSixty free?
MeThreeSixty is free to download, with in-app purchases available.
Is CalmTide free?
CalmTide is free to download, with in-app purchases available.
Do MeThreeSixty or CalmTide have ads?
Neither MeThreeSixty nor CalmTide shows ads.
Which is updated more often, MeThreeSixty or CalmTide?
MeThreeSixty ships an update monthly, and CalmTide every 10 days. Most recently, MeThreeSixty was updated on October 18, 2026 and CalmTide on October 15, 2026.

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