GainFrame vs Fasting Mastery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GainFrame
This app uses AI to analyze your progress photos, providing estimates for body fat percentage, physique scores, and muscle group development. Track changes over time with visual comparisons and detailed reports.
- AI body fat estimation
- Physique scoring
- Muscle group breakdown
- Side-by-side photo comparisons
- Progress timeline
- Guided pose templates
- Apple Health integration
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See what’s actually changing in your physique. GainFrame turns progress photos into body-fat estimates, muscle-group insights, side-by-side comparisons, and an AI Coach grounded in your real check-ins—not generic fitness advice. FROM PHOTO TO PROOF • Compare any two check-ins side by side • See body-fat, weight, and physique-score changes together • Open an AI Deep Dive that explains what changed—and why • Review 12 muscle groups across front and back poses AN AI COACH THAT KNOWS YOUR DATA Ask Coach about your latest check-in, weight trend, training, sleep, or recovery. Responses use the data you choose to connect, so the guidance reflects your actual progress instead of a generic template. SEE MORE THAN THE SCALE • Body-fat estimates from progress photos • Physique scoring and muscle-group breakdowns • Precision estimates from multiple poses • BMI and FFMI trends • Future You physique projections • Weekly and monthly progress chapters BUILT FOR CONSISTENT CHECK-INS • Guided pose templates and photo alignment • Import existing photos from your camera roll • Organize every check-in in a visual timeline • Track streaks, milestones, and weight trajectory • Create shareable before-and-after cards CONNECTED TO YOUR ROUTINE Connect Apple Health, Hevy, and Strava to bring weight, workouts, cardio, sleep, HRV, and recovery into the same progress story. PRIVATE BY DESIGN Your progress-photo library is stored on your device, and no account is required to start tracking. When you choose an AI feature, the selected photos are securely processed for analysis and are not stored on GainFrame servers. HOW IT WORKS 1. Capture a check-in or import photos you already have 2. Get your visual progress read and body-composition estimates 3. Compare over time and ask Coach what to focus on next Start your next check-in and turn the work you’re already doing into progress you can see. IMPORTANT GainFrame is a fitness tracking tool, not a medical device. AI-generated estimates—including body-fat percentage, BMI, FFMI, muscle scores, and macro recommendations—are approximations based on photo analysis and should not be used for diagnosis or treatment. Consult a qualified healthcare professional before making health or fitness decisions. Powered by fatsecret nutrition API (www.fatsecret.com) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Fasting Mastery
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You fasted for 14 hours yesterday. You just don't know it yet. Fasting Tracker shows you exactly where you are in your fast — right now, in real time. No meal plans. No food databases. No judgment. Just the clock, the phase you're in, and a little nudge to keep going. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lavender-utahraptor-b7c.notion.site/Privacy-policy-2f68fbc25c0f80b293d0fba19d8ba7a5 YOUR FAST, LIVE - See your fasting duration tick up every second — Fat Burning, Autophagy, whatever phase you're chasing - Log your last meal in 3 taps. Seriously. Three. - Quick presets: Now, 15m ago, 1h ago — because nobody wants to type the exact time they ate a biscuit STAY HYDRATED, STAY FASTING - Log every sip with quick presets and your own custom "My cup" size - Live hydration score shows how you're doing over the last 24 hours — full tank means you nailed it - A dedicated water page: today's intake, weekly bars, hourly patterns, and a confidence range that sharpens as you log - Water never breaks your fast — it has zero calories, so the clock keeps running while you stay topped up DATA THAT ACTUALLY TELLS YOU SOMETHING - 24-hour timeline cards: see your fasting vs eating windows painted across every day of the week - Phase stacked bar chart: find out which fasting phase you're actually spending time in - Insights screen: your streak, your personal best, your eating window, your program match — all in one scroll - Calorie breakdown by meal type with your personal BMR as a reference line (optional body profile) - Filter your history by Water, Food, or Alcohol with a single tap YES, ALCOHOL LOGGING TOO - Log drinks from 11 types: Lager, Red Wine, Spirits, Cocktails and more - Automatic calorie calculation from ABV and serving size - Real-time Blood Alcohol Level estimate with dissolution curve, drink-event markers, and predicted sober time - It participates in your fasting clock, because biology doesn't take the night off BUILD STREAKS THAT ACTUALLY STICK - Auto-detected fasting patterns (16:8, 18:6, 20:4 and more) - Week-over-week trend arrows — is your fast getting longer or slipping? - Personal best tracker — your longest fast, sitting there daring you to beat it - Fasting program comparison: see how close you actually are to your goal - YOUR DATA, EVERYWHERE - Works 100% offline — no account needed to start - Optional cloud sync via Google Sign-In — your history (water included) follows you across devices - Cloud backup and restore — nothing gets lost No guilt. No streaks of shame. No diet culture. Just your data, honestly. And a very satisfying timer going up. Download free. Start your fast.
Screenshots
Verdict
The clearest difference is iOS requirement: Fasting Mastery at 15.0 against GainFrame's 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
Both are free to download. GainFrame sells 8 in-app purchases, starting at $3.99 per 7 days and Fasting Mastery sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
GainFrame ships an update every 4 days, Fasting Mastery every 5 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | GainFrame | Fasting Mastery |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (71 ratings) — better | — |
| Positive reviews | 88.0% of reviews | — |
| Number of ratings | 71 — better | — |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 234 MB | 45 MB |
| Age rating | 4+ | 12+ |
| Developer | Michael Rode | Yasiru Abeygunawardana |
In-app purchases
GainFrame
- Pro Weekly$3.997 Days
- Pro Monthly$5.991 Month
- Pro Monthly$7.991 Month
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- Pro Weekly$9.997 Days
- Pro Yearly$39.991 Year
- Pro Yearly7 Days trial$39.991 Year
- Pro Annual Special Offer1 Year trial$49.991 Year
- Pro Yearly$49.991 Year
Fasting Mastery
- Monthly$1.991 Month
- Quarterly$2.993 Months
- Annual$9.991 Year









