Comparison

Flux vs Hypertrophy

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

Head to head
About

Flux

This app helps you train smarter by generating personalized workouts based on your goals, available equipment, and time. It uniquely adapts to your progress over time, keeping all your data on your device for privacy. Track every set, rep, and weight with ease, and benefit from advanced features like progressive overload and fatigue-aware training.

Highlights
  • Personalized workout generation
  • Customizable routines and exercises
  • Real-time adaptive changes
  • Progressive overload and periodisation
  • Fatigue-aware training support
  • Apple Health integration
  • Data export
Features
Read full description

Walk into the gym with a plan. Leave knowing what to aim for next. Flux creates personalized gym routines around your goals, experience, schedule, session length and available equipment. See your whole workout in one scrolling view, log sets with less screen switching and keep past performance close when choosing your next targets. TRY EVERY FEATURE FREE Download Flux free and use every feature for 14 days. No payment is required, the trial does not start a subscription and there is no automatic charge. UNLOCK FOREVER After the trial, training features require a one-time Lifetime Unlock. There is no free training tier after the trial and no recurring charge. Apple shows the price for your storefront before you confirm. Eligible existing paid owners keep permanent Full Access. PLAN AROUND YOUR LIFE - Generate Push/Pull/Legs, Upper/Lower, Full Body and other routines - Match training to your equipment, schedule and available weight increments - Choose a session length from 30 to 90 minutes when generating a routine - Build your own routines and custom exercises - Browse prebuilt programs with Overview, Guide and Settings before choosing - Follow Flux Hybrid for strength and timed cardio - Swap exercises for a workout or across the remaining program where supported CHOOSE YOUR STRENGTH PERIODIZATION - Adaptive Block: goal-appropriate phases with completion and recovery checks - Daily Undulating: different strength-day emphases across your routine - Linear: a six-week progression of training emphasis - Weekly Undulating: routine-wide emphasis that changes by model week - Manual: choose an eligible phase, with safety recovery when needed Choose a model when generating a strength routine. To change models, generate a new routine. Prebuilt programs keep their authored progression; HIIT keeps its timed prescription. Personalized features need calibration and sufficient training history. FOLLOW YOUR WORKOUT IN ONE PLACE - Log sets with less screen switching and see what is done and what comes next - Keep warm-ups and working sets together, with rest timers and set targets - Move on easily: the next unfinished exercise comes into view automatically - Use individual set targets, supersets, drop sets, myo-reps and giant sets - Add sets and notes, or open Edit, Swap and Remove from your workout - Review achieved sets, missed targets, next-session guidance and trained muscles in Workout Complete EDIT SETS AND CHECK PROGRESS IN ONE PLACE Choose your next targets with past performance close by. Edit sets in Settings, then switch to Stats in the same exercise details screen for performance charts, volume trends and previous workouts. Pick a date range to see recent sessions or the longer trend. Available from your workout, Next Up or saved routine, with history across routines. Future prebuilt target restrictions still apply. UNDERSTAND YOUR TRAINING - Review Strength, Health, Consistency and Targets hit in Insights - Follow your current routine from the day you started it - Revisit findings saved with your Check-in reports - See your training phase and position in Routine Overview - Use optional Apple Health sleep, HRV and heart-rate context - Export training data and use optional signed-in cloud backup MAKE FLUX YOURS Choose System, Light or Dark in Profile > Theme. Signed-in choices sync; System follows each device. Home widgets and Live Activities follow where iOS permits. Log offline with valid access. An already-open workout can be finished after trial expiry; returning after expiry shows the paywall. Restore Purchases and Account & Data remain available. Cloud backup syncs separately when online. Apple Health is optional. Learn more: https://fluxworkouts.com Support: https://fluxworkouts.com/support Terms: https://fluxworkouts.com/terms Privacy: https://fluxworkouts.com/privacy

About

Hypertrophy

Log your strength training sessions, track personal records, and monitor muscle readiness. This app allows you to build custom routines, use a rest timer, and sync workouts with your Apple Watch and Health data.

Highlights
  • Log workouts and sets
  • Track personal records
  • Build custom routines
  • Rest timer between sets
  • Apple Watch workout sync
  • Muscle readiness estimation
  • Apple Health integration
Features
Read full description

Keep your strength training in one place. Hypertrophy helps you log workouts, record sets, and see how your training adds up over time. • Log workouts on iPhone or Apple Watch, revisit your history, and track personal records. • Choose from built-in exercises or add your own. • Build routines and use a rest timer between sets. • Start, log, and finish workouts on Apple Watch, with sets and rest timers synced to iPhone. • Home Screen, Lock Screen and Apple Watch widgets for today's training and recovery. • Sync workouts, routines and exercises through your private iCloud. • Record optional RPE for each set. • See muscle readiness based on your recent training. • Optionally connect Apple Health for workout saving, bodyweight, and recovery metrics. • Back up and restore your workouts, or export your sets as CSV. Core logging, Apple Watch workouts, history, Health integration, readiness, and backup and restore are free. Hypertrophy+ adds more than four routines, and app themes and icons. Hypertrophy+ is a one-time purchase with no subscription. No account is required. Your training log stays on your devices and in your own iCloud, never on a Hypertrophy server. Readiness is a training estimate, not a medical diagnosis. Privacy: https://hypertrophy-support.strole95.chatgpt.site/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flux4 screens
Hypertrophy4 screens

Verdict

The call

Flux and Hypertrophy are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Flux sells 4 in-app purchases, starting at $2.99 per month and Hypertrophy sells 3 in-app purchases, starting at $1.99 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 Flux against 5.0 for Hypertrophy. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
Flux versus Hypertrophy: the parameters behind the verdict, then further details
ParameterFluxHypertrophy
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS26.226.0 — better
Further details — not scored
Size47 MB42 MB
Age rating4+4+
DeveloperDigital Flux LtdDevin Strole

Customer experience

Flux

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Hypertrophy

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Flux

Subscriptions2
  • Flux Pro : 1 Month$2.991 Month
  • Flux Pro : 12 Month$19.991 Year
One-time2
  • Flux Pro : Lifetime Pass - Founder$49.99
  • Flux Pro : Lifetime Pass$59.99
3 purchases

Hypertrophy

Subscriptions2
  • Hypertrophy+$1.991 Month
  • Hypertrophy+7 Days trial$5.991 Year
One-time1
  • Hypertrophy+ Lifetime$3.99

Questions

Is Flux free?
Flux is free to download, with in-app purchases available.
Is Hypertrophy free?
Hypertrophy is free to download, with in-app purchases available.
Which has better reviews, Flux or Hypertrophy?
Flux and Hypertrophy are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Flux or Hypertrophy have ads?
Neither Flux nor Hypertrophy shows ads.
Which is updated more often, Flux or Hypertrophy?
Flux ships an update weekly, and Hypertrophy weekly. Most recently, Flux was updated on October 31, 2026 and Hypertrophy on October 31, 2026.

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