Protokl vs Body Progress
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protokl
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Protokl is not another static workout log or generic calorie counter. It is a bi-directional physiological engine designed to mathematically optimize your body composition and strength progression. By replacing rudimentary step-functions and static algorithms with continuous mathematical curves and variance-adjusted modeling, Protokl adapts to your metabolism and recovery capacity in real-time. Protokl is your all-in-one fitness transformation companion, built on exercise science to help you reach your body composition and strength goals faster. SET YOUR GOALS Choose your path — fat loss, muscle gain, or body recomposition. Protokl builds a personalized plan based on your current stats, experience level, and preferred pace, then projects your timeline using our proprietary algorithm grounded in published physiological research. DAILY PROTOCOL Your personalized daily checklist keeps you accountable. Track sleep, meals, workouts, body composition, steps, and custom tasks — all in one place. Smart reminders keep you on schedule, and tiles auto-complete as you hit your targets. SMART WORKOUTS Recovery-based workout programming that adapts to you. Protokl tracks muscle recovery across 11 muscle groups, selects exercises based on your available equipment, and applies progressive overload automatically. Warm-up sets, supersets, drop sets, and rest timers are built in. NUTRITION TRACKING Log meals from a curated recipe database or search thousands of foods. Protokl calculates your daily calorie and protein targets based on your TDEE, goal, and pace — then tracks your progress throughout the day. BODY COMPOSITION ANALYTICS Track bodyweight, body fat percentage, and lean body mass with interactive charts. See your 2-week trend, plan forecast, confidence intervals, and goal progress. Syncs automatically with Apple Health. STRENGTH TRACKING Monitor your lifts over time with per-exercise history charts, estimated 1RM tracking, and strength progression forecasts. APPLE HEALTH INTEGRATION Seamlessly syncs with Apple Health to import steps, heart rate, sleep, VO2 max, and 60+ other health metrics. Your data stays on your device with automatic iCloud backup. SCIENCE-BACKED PROJECTIONS Our forecast engine synthesizes research on muscle protein synthesis rates, fat oxidation limits, adaptive thermogenesis, and more to project your body composition journey with 90% confidence intervals. PROTOKL PRO SUBSCRIPTION Protokl Pro unlocks the full experience including personalized workout programming, AI-powered nutrition tracking, body composition forecasting, custom workout templates, data export, and priority support. A Protokl Pro subscription is required to access these premium features. • Monthly: $12.99/month • Annual: $119.00/year ($9.92/month) • 14-day free trial included with all plans Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Account Settings on the App Store after purchase. Any unused portion of a free trial period will be forfeited when you purchase a subscription. Privacy Policy: https://docs-nine-silk.vercel.app/privacy.html Terms of Use: https://docs-nine-silk.vercel.app/terms.html
Body Progress
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Stop letting the scale dictate your happiness. Have you ever felt discouraged because the numbers on the scale didn’t budge, even though you’ve been working hard on your diet and fitness? Your body is changing—guaranteed. But those subtle transformations are impossible to see if you’re only chasing numbers. MirrorLog is a body transformation tracker designed to "visualize" your small wins and keep your motivation at an all-time high. 【5 Reasons to Choose MirrorLog】 1. Sync Photos with Your Stats Save your weight and body photos as a single record. Easily understand the correlation between your weight and your physical tightening that a simple graph can't show. 2. Feel the Change with "Comparison" Compare your past and present self with a single tap. Side-by-side or layered—see the difference instantly. "Wow, my waist really is slimmer!" That realization becomes your fuel for tomorrow. The sense of achievement you can't get from numbers alone will support your journey. 3. Smart Input with Apple Health Sync with the Apple Health app to make weight logging effortless. Let the app handle the boring data so you can focus on the exciting part: tracking your visual transformation. 4. Your Private, Secure Vault Body photos are deeply personal. Photos saved in MirrorLog are stored securely within the app and will never appear in your iPhone’s standard "Photos" library. We protect your privacy at all costs. 5. Share Your Progress in Style Turn your "I did it!" moments into stylish comparison images for social media. Supports both the classic "Side-by-Side" and the dramatic "Slider Overlay" (Premium Feature). Your hard work might just be someone else's inspiration. 【MirrorLog is perfect for:】 * Anyone tired of being frustrated by the numbers on the scale. * Fitness enthusiasts who want to track muscle definition and tone. * Postpartum moms or those tracking posture improvements. * People who don't want body photos cluttering their main Photo library. * Anyone looking for a simple, beautiful, yet powerful tracking tool. "Falling in love with the mirror again." Managing your body is a journey to loving yourself more. When you notice that 1-millimeter change from yesterday, dieting stops being a "chore" and starts being "fun." Download MirrorLog now and start recording your ultimate transformation! Note: Some features, such as the "Slider Overlay," require a premium subscription. The images used in screenshots are AI-generated and do not represent real individuals. Privacy Policy: https://sly-pudding-816.notion.site/Privacy-Policy-MirrorLog-30ad3730639f805c9581d5040a30a12e Terms of Use: https://sly-pudding-816.notion.site/Term-of-Use-MirrorLog-30ad3730639f80b5a16fd06cd878b502
Screenshots
Verdict
The clearest difference is update cadence: Protokl at every 3 days against Body Progress's weekly. Protokl also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases 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
Both are free to download. Protokl sells 2 in-app purchases, starting at $12.99 per month and Body Progress sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Protokl ships an update every 3 days, Body Progress weekly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | Protokl | Body Progress |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 91 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Luther | Takatoshi Ichige |
In-app purchases
Protokl
- Protokl Pro Monthly7 Days trial$12.991 Month
- Protokl Pro Annual7 Days trial$119.001 Year
Body Progress
- Premium Weekly$0.997 Days
- Premium Monthly$2.991 Month
- Premium Yearly (Best Value)$19.991 Year
- Premium Lifetime Access$39.99









