Comparison

Body By Simone vs Fastiya

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

Head to head
About

Body By Simone

Access celebrity trainer-designed workouts and nutrition plans from home. This app offers personalized programs, daily live classes, and progress tracking to help you achieve your fitness goals. Redefine your lifestyle and workout routine with expert guidance.

Highlights
  • Exclusive at-home fitness programs
  • Personalized workout plans
  • Daily new live classes
  • On-demand customizable workouts
  • Full nutrition program (plant or protein based)
  • Progress tracking (measurements & selfies)
Features
Read full description

What do the hottest bodies in Hollywood have in common? The secret is in this at-home fitness app. Get the body you want and deserve with celebrity trainer Simone De La Rue and celebrity nutritionist Kelly LeVeque. The Body By Simone (BBS) app is going to redefine your lifestyle and the way you workout. EXCLUSIVE AT-HOME FITNESS PROGRAM Get access to the exclusive workout regime of Body By Simone, called “Hollywood’s Hottest Workout Empire” by Forbes and “The Girlfriend Workout” by the New York Times. The BBS app utilizes advanced artificial intelligence and decades of experience in fitness for you to become the best version of yourself, while keeping a smile on your face. PERSONALIZED WORKOUTS, DAILY NEW LIVE CLASSES, & FULL NUTRITION PROGRAM The BBS app provides you with personalized workout programs, as well as access to weekly new classes and on-demand customizable workouts. You’ll also receive nutrition access, either plant or protein based, for you to achieve your ultimate lifestyle goal. KEEP TRACK OF YOUR PROGRESS Keep track of your measurements and take selfies to see your progress. Enjoy exercising at home and have your own online personal trainer right there in the palm of your hands. This app is the one-stop shop for living a healthy life. Instead of going to the gym, experience BBS from the comfort of your own home. Change the way you exercise at home and start living a more fulfilling life. Start using the best home workout app and enjoy! APP SUPPORT Download Body By Simone and let us know about any bugs, questions, feature requests or any other suggestions. Contact us at appsupport@bodybysimone.com. PREMIUM SUBSCRIPTION PRICING AND TERMS After the 14 days free trial this subscription automatically renews at US $19.99 per month unless it is canceled at least 24 hours before the end of the trial period. Your Apple ID account will be charged for renewal within 24-hours prior to the end of the trial period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. The BBS App Terms of Service and Privacy Policy can be found at https://www2.bodybysimone.com/bbs-app-terms-and-conditions/

About

Fastiya

Track your body's metabolic changes hour by hour during fasting. An AI coach provides personalized insights based on your data, helping you build consistent habits and monitor key health metrics.

Highlights
  • Hour-by-hour body change tracking
  • AI fasting coach
  • Multiple fasting protocols
  • Advanced health metric tracking
  • Wearable device synchronization
  • Habit building tools
  • Daily journaling and insights
Features
Read full description

Track every hour of your fast and get AI coaching built on your real data — not generic tips. Try Fastiya Pro free for 7 days. YOUR BODY, HOUR BY HOUR Watch your body shift from fat-burning to ketosis to autophagy in real time. Milestone alerts tell you exactly what's happening at 8h, 12h, 16h, and beyond — backed by science, not guesswork. AN AI COACH THAT ACTUALLY KNOWS YOU Ask questions and get answers built on your real fasting history, sleep, recovery, and stress data — not one-size-fits-all advice. Wake up to a Morning Report summarizing your sleep, recovery, and readiness before you even open the app. MACROS & NUTRITION, SIMPLIFIED Log meals and see your day at a glance: calories plus protein, carbs, and fat. Get smart feedback on your goals, hydration, and diet — no spreadsheets required. SLEEP, FASTING & STRESS, CONNECTED Journal Insights surfaces the correlations that matter — how your sleep affects your fasting, how stress shows up in your recovery — so you know what's actually moving your progress. SYNC YOUR WEARABLES Connect Fitbit, Oura Ring, or WHOOP for deeper recovery and readiness data layered directly into your coaching. KNOW YOUR BIOLOGICAL AGE See how your habits are shaping your biological aging clock, not just the calendar. STAY ON TRACK Streaks, achievements, and smart notifications keep you motivated without the noise — context-aware nudges, not constant pings. ON YOUR WRIST A dedicated Apple Watch app keeps your fast, streak, and body state visible without reaching for your phone. Try Fastiya Pro free for 7 days — full access to AI coaching, wearable sync, bio age, and advanced analytics. Cancel anytime. Terms of Use (EULA): https://fastiya.co/terms-of-service/ Privacy Policy: https://fastiya.co/privacy-policy/

Screenshots

Body By Simone4 screens
Fastiya4 screens

Verdict

The call

The clearest difference is review sentiment: Fastiya at 100% against Body By Simone's 61%. Fastiya also leads on monetization model (freemium vs subscription) and rating (5.0 vs 4.7). Body By Simone's advantage is ratings volume (586 vs 1) and iOS requirement (15.6 vs 17.0). On price, update cadence, 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. Body By Simone sells 9 in-app purchases, starting at $19.99 per month and Fastiya sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fastiya holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Body By Simone has 586 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 61% of Body By Simone's written reviews are positive against 100% of Fastiya's.

UpkeepUpdate frequency

Body By Simone ships an update every 3 weeks, Fastiya fortnightly. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Body By Simone versus Fastiya: the parameters behind the verdict, then further details
ParameterBody By SimoneFastiya
PriceFreeFree
Rating4.7 (586 ratings)5.0 (1 ratings) — better
Positive reviews60.9% of reviews100.0% of reviews — better
Number of ratings586 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better17.0
Further details — not scored
Size22 MB60 MB
Age rating4+12+
DeveloperBody By Simone LA LLCOromo Oromia

Customer experience

Body By Simone

All ratings586 ratings
Positive92.5%
Neutral2.4%
Negative5.1%
Written reviews87 reviews
Positive60.9%
Neutral3.4%
Negative35.6%

Fastiya

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Body By Simone

Reported bugs

3 issues
  • Videos not loading or freezing during workouts
  • Inability to access latest workout content
  • Glitches in account management and billing

Requested features

5 requests
  • Add more full-length dance cardio classes
  • Improve app stability and reduce technical issues
  • Provide better workout customization and personalization
  • Offer more flexible subscription options
  • Integrate ability to cast/stream workouts to TV

Fastiya

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Body By Simone

Subscriptions2
  • Premium Monthly Subscription14 Days trial$19.991 Month
  • Legacy Monthly Subscription14 Days trial$19.991 Month
One-time7
  • BBS Post Natal Program$79.99
  • Strength in Menopause$99.00
  • 8 Week Program: Beginner$99.99
Show 4 more
  • 8 Week Program: Intermediate$99.99
  • 8 Week Program: Advanced$99.99
  • Progressive Strength Program$99.99
  • Program$99.99
2 purchases

Fastiya

Subscriptions2
  • Monthly Premium7 Days trial$9.991 Month
  • Annual Premium7 Days trial$79.991 Year

Questions

Is Body By Simone free?
Body By Simone is free to download, with in-app purchases available.
Is Fastiya free?
Fastiya is free to download, with in-app purchases available.
Which has better reviews, Body By Simone or Fastiya?
Fastiya is rated higher. Body By Simone averages 4.7 out of 5 from 586 ratings, while Fastiya averages 5.0 from 1 ratings.
Do Body By Simone or Fastiya have ads?
Neither Body By Simone nor Fastiya shows ads.
Which is updated more often, Body By Simone or Fastiya?
Body By Simone ships an update every 3 weeks, and Fastiya fortnightly. Most recently, Body By Simone was updated on October 16, 2026 and Fastiya on October 12, 2026.

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