Comparison

Double Shift vs myoxin

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

Head to head
About

Double Shift

Features
Read full description

Download the Double Shift App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!

About

myoxin

Read full description

Build muscle with an AI coach that learns what your body responds best to. myoxin uses your workouts, recovery, progress, and scientific literature to help you train smarter, get stronger, and stop guessing what to change next. Log workouts. Ask training questions. Get weekly analysis and statistics. Let your plan adapt. All in the app, and on WhatsApp too if you prefer. What myoxin does: β€’ A plan that explains its reasoning Every session comes with its why: what your coach changed since last time, and what it is responding to. Clear progression you can follow, not a random AI-generated workout. β€’ Full weekly training analysis myoxin analyzes your workouts, volume, intensity, muscle stimulus, progression, fatigue, and recovery patterns to show what is working, what is stalling, and what should change next. Every Sunday it reviews the week you actually trained and writes the changes straight into next week's sessions, so the analysis becomes a plan instead of a report. The more you train, the more specific the feedback becomes. β€’ AI fitness coach in the app or on WhatsApp Text it. Send voice notes, photos, and videos. Ask what to do in a crowded gym, send a lift video for form feedback, share a restaurant menu for nutrition advice, or send a photo of a terrible hotel gym and get a replacement workout. β€’ 35M+ scientific papers on demand Ask questions about hypertrophy, strength training, recovery, nutrition, soreness, deloads, exercise selection, or programming, with answers grounded in scientific literature and your own training data. β€’ Biology-based muscle stimulus model myoxin tracks how much useful training stimulus each muscle is getting, so you can see which muscles are undertrained, which are progressing, and where you may be adding volume without much return. β€’ Wearable and recovery data integration Connect health and wearable data like sleep, HRV, activity, nutrition, recovery, and body metrics, so your training plan can respond to more than just sets and reps. β€’ Free by design No myoxin subscription. Connect your own Google Gemini API key and your coach runs on it. Disconnect any time. Features: β€’ Fast workout logging built for between sets β€’ Strength training, bodybuilding, hypertrophy, cardio, and gym workout tracking β€’ Set, rep, weight, RIR, warmup, drop set, and failure set logging β€’ Reusable workout templates β€’ Weekly workout split planning β€’ AI workout planner and adaptive training recommendations β€’ Exercise progress charts β€’ Estimated 1RM, tonnage, sets, reps, and trend tracking β€’ Muscle stimulus analytics and muscle heatmap β€’ Custom exercises and favorite exercises β€’ Exercise library for strength, cardio, and mobility β€’ Health and wearable data sync β€’ Track diet, protein, supplements, stress, illness, and alcohol alongside training β€’ AI personal trainer support through text, voice, photos, and videos β€’ Science-backed fitness, nutrition, recovery, and training answers Most workout trackers only record what you did. Most AI fitness apps give generic answers. myoxin is built to close the loop: train, analyze, learn, adapt, repeat. Less random workout generator. Less generic chatbot with gym vocabulary. More like a personal exercise scientist that actually knows your training. Download myoxin and start training with a plan that adapts. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://myoxin.ai/privacy

Screenshots

Double Shift3 screens
myoxin4 screens

Verdict

The call

The clearest difference is in-app purchases: Double Shift at none against myoxin's 3. Double Shift also leads on iOS requirement (14.0 vs 16.4). myoxin's advantage is ads (none vs shown) and update cadence (every 4 days vs every 5 weeks). On price and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. myoxin sells 3 in-app purchases, starting at $4.99 per 7 days. Double Shift asks for nothing beyond the download.

UpkeepUpdate frequency

Double Shift ships an update every 5 weeks, myoxin every 4 days. The most recent releases landed on June 11, 2026 and September 12, 2026 respectively.

Scorecard4 real differences Β· 2 level
Double Shift versus myoxin: the parameters behind the verdict, then further details
ParameterDouble Shiftmyoxin
PriceFreeFree
Update frequencyEvery 5 weeksEvery 4 days β€” better
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS14.0 β€” better16.4
Further details β€” not scored
Size123 MB65 MB
Age rating4+9+
DeveloperThe Turn Holding BVTim Wehnes

In-app purchases

None

Double Shift

No in-app purchases

3 purchases

myoxin

Subscriptions3
  • myoxin Weekly$4.997 Days
  • myoxin Monthly$17.991 Month
  • myoxin Annual3 Days trial$149.991 Year

Questions

Is Double Shift free?
Double Shift is free to download, with no in-app purchases.
Is myoxin free?
myoxin is free to download, with in-app purchases available.
Do Double Shift or myoxin have ads?
Double Shift shows ads; myoxin does not.
Which is updated more often, Double Shift or myoxin?
Double Shift ships an update every 5 weeks, and myoxin every 4 days. Most recently, Double Shift was updated on June 11, 2026 and myoxin on September 12, 2026.

Other comparisons