Comparison

Girths & caliper vs 7App

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

Head to head
About

Girths & caliper

Track your body composition progress with detailed measurements of skinfolds and girths. Visualize your journey with charts and photos, and integrate with your health data. Easily scan supplements and save your progress securely.

Highlights
  • 16 Girth points
  • 4 Skinfold methods
  • Progress charting
  • Photo integration
  • Health app integration
  • Data export/import
  • Barcode supplement scanner
Features
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Track your body composition with science-backed accuracy. Girths & Caliper (G&C) is the most precise body fat tracker for fitness enthusiasts, athletes and personal trainers. Measure, log and analyze your progress over time using the same methods used in professional fitness assessment. SKINFOLD METHODS Calculate body fat percentage using validated skinfold caliper formulas: • Jackson-Pollock 7-site (men & women) • Jackson-Pollock 3-site (men & women) • Durnin-Womersley 4-site (age-adjusted) • Sloan 2-site (men & women) All formulas use the Siri body density equation to compute body fat %, lean mass and fat mass automatically. GIRTH MEASUREMENTS Record up to 16 circumferences: chest, waist, hips, neck, biceps (left/right, relaxed and flexed), forearms, thighs, calves, wrists. Track asymmetries between left and right side to identify imbalances. PROGRESS PHOTOS Take consistent progress photos with voice-guided body positioning. Compare front, side and back shots over time with a side-by-side view. AI COACH (Premium) Get personalized insights from an AI coach powered by Anthropic Claude. The coach analyzes your real measurement deltas and gives you specific, actionable feedback every 4-5 weeks — when body composition changes are actually measurable. Ask follow-up questions through the in-app chat. CHARTS & TRENDS Visualize every metric over time. Donut charts for body composition breakdown. Line charts for individual measurements. Bar charts for session-to-session comparisons. DATA OWNERSHIP All measurements, photos and analyses are stored locally on your device. We do not collect, sell or track your data. Export everything to CSV anytime. PRIVACY & SECURITY • No accounts, no email signup required • No advertising or third-party tracking • AI requests are anonymized — no name, no email, no device ID is shared • All network traffic is encrypted (HTTPS) WHO IS THIS FOR • Bodybuilders tracking cut/bulk phases • Endurance athletes monitoring lean mass changes • Personal trainers logging client measurements • Anyone serious about quantifying body composition beyond a scale SUBSCRIPTION G&C Standard unlocks the full feature set: • Monthly: €3.99/month • Yearly: €34.99/year (save ~27%) Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: see in-app Settings → Privacy Built by a single developer. No ads, no data harvesting, no dark patterns — just the most accurate body composition tracker we could make. Questions? app.user.info@icloud.com

About

7App

Features
Read full description

Scarica 7App e prenota i nostri corsi direttamente dal palmo della tua mano. CFC - 7urning - Mass - 7online - OU7Door Scopri i canali social della struttura e resta aggiornato sui nostri servizi, promozioni e pacchetti.

Screenshots

Girths & caliper4 screens
7App3 screens

Verdict

The call

The clearest difference is in-app purchases: 7App at none against Girths & caliper's 6. 7App also leads on iOS requirement (12.0 vs 18.6). Girths & caliper's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Girths & caliper sells 6 in-app purchases, starting at $3.99 per month. 7App asks for nothing beyond the download.

UpkeepUpdate frequency

Girths & caliper ships an update every 3 weeks, 7App every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Girths & caliper versus 7App: the parameters behind the verdict, then further details
ParameterGirths & caliper7App
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS18.612.0 — better
Further details — not scored
Size19 MB28 MB
Age rating12+17+
DeveloperAlberto LunardiniGiuseppe Scarano

In-app purchases

6 purchases

Girths & caliper

Subscriptions2
  • Monthly Subscription$3.991 Month
  • Subscription Yearly$29.991 Year
One-time4
  • Supplement list expanse$0.99
  • All 16 Girths point$1.99
  • Jacson&Polloc Methods$1.99
Show 1 more
  • Unlock all features-remove ads$3.99
None

7App

No in-app purchases

Questions

Is Girths & caliper free?
Girths & caliper is free to download, with in-app purchases available.
Is 7App free?
7App is free to download, with no in-app purchases.
Do Girths & caliper or 7App have ads?
Neither Girths & caliper nor 7App shows ads.
Which is updated more often, Girths & caliper or 7App?
Girths & caliper ships an update every 3 weeks, and 7App every 4 months. Most recently, Girths & caliper was updated on October 24, 2026 and 7App on October 25, 2026.

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