Comparison

Gain Weight vs Weighly

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

Head to head
About

Gain Weight

This app helps users track calorie intake specifically for gaining weight and muscle mass. It offers quick meal logging via photo recognition and provides personalized targets based on user stats and goals. Data is kept private on the device with optional iCloud sync.

Highlights
  • Bulk-first calorie targets
  • AI-powered photo meal logging
  • One-gesture logging for weight and portions
  • Clear home screen with daily progress
  • Trend-based weight tracking
  • Privacy-focused, no account needed
Features
Read full description

StackCal is the calorie tracker built for bulking, not cutting. Most nutrition apps assume you're trying to lose weight. StackCal flips the script. If you're trying to gain muscle, gain mass, or just stop under-eating, StackCal answers the one question that actually matters: "How much more do I need to eat today?" WHY STACKCAL - Bulk-first targets — Personalized BMR, TDEE, and surplus calculations based on your stats and goals. - 5–10 second logging — Snap a photo of your meal and let AI recognize the food and estimate calories. No barcode scanning, no database fumbling. - One dial for everything — Log weight and adjust portion sizes with the same analog dial. One gesture to learn. - Nothing hidden — Today's calories, what you ate, and your weight all live on the home screen. - Trend-based weight — See your moving average instead of fighting daily fluctuations. DESIGNED FOR CLARITY Three rules guide every screen: information is never hidden, the same gesture always means the same thing, and every tap produces a visible response. The result is an app you can use one-handed, post-workout, with sweaty fingers. PRIVACY FIRST - No account required. - Your meals, weight, and profile stay on your device. - Optional iCloud sync uses your private CloudKit container — we never see your data. - No ads. No IDFA. No tracking pixels. SUBSCRIPTION A free tier covers core logging. The subscription unlocks photo-based food recognition and advanced trend analysis. Cancel anytime in iOS Settings. Built for lifters who eat to grow. TERMS OF USE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Weighly

Features
Read full description

Your weight is different every morning. Water, salt and sleep move the number around, so a single reading tells you very little on its own. The trend underneath is the part worth watching, and that is what Weighly shows you, so one heavy morning does not knock you off course. What Weighly does Most tracking apps want a lot of your attention. This one wants about ten seconds. Log a weight, glance at the trend, get on with your day. Weighly then does the part a chart cannot: it smooths out the noise, works out how fast you are actually moving, shows when you would reach your goal at that rate, and reviews the week with you so your daily target keeps up. Your weight, honestly • A smoothed trend line that shrugs off a bad morning, with every raw weigh-in still there underneath • Log in seconds in kg, lb or stone, and backdate the days you missed • An interactive chart you can drag your finger through • Set a goal weight and see a projected date that updates every time you log • A weekly check-in that reviews your week and adjusts your daily calorie target • Milestones for the things you do, not for the pounds • All-time gain and loss at a glance, plus a BMI card that is honest about its limits • Up to four progress photos per entry: front, back, left and right • Compare two photos side by side, or share a ready-made progress chart Count your calories • Search a food by name and the nutrition fills itself in • Or just say it: “Hey Siri, add food to Weighly” logs what you ate, hands-free • Scan a barcode to log packaged food without typing it out • A daily calorie target built around your profile and how fast you want to get there • Protein, carbs and fat at a glance, day by day Move a little more • Connect Apple Health and your workouts, steps and energy burned show up next to your weight • A daily burn ring with a goal that follows your weight plan • Heart rate detail for every workout • Being active can add calories back to your food budget for the day • Share a workout as a picture or a short video with animated stats Weighly Premium Weighly is a subscription app. Everything in it needs a subscription: weight logging, goals, the trend, calories, workouts, photos and the weekly check-in. Sign in with Apple is required to use the app. • Annual: $24.99 per year, and your first month is free • Monthly: $3.99 per month, with 7 days free • Cancel any time in your Apple ID settings • No ads, and nothing sold on Subscriptions renew automatically unless turned off at least 24 hours before the period ends. Private by design • Your weights, goals, photos and food diary stay on your device • Apple Health is read on your device only. It never leaves your iPhone • Sign in with Apple is required, and it is the only sign-in. No passwords and no mailing lists • Analytics is optional, and never includes your weight or any other health figure • We do not sell your data, and we do not track you across other apps or websites • Export your full history to CSV whenever you like. It is your data • Delete your account and everything in it from inside the app Made for you • Weigh-in reminders: daily, weekly, every two weeks or monthly, at a time you pick • Light, dark or system theme • Six languages: English, French, German, Spanish, Italian and Brazilian Portuguese • A guided tour you can replay, plus tips on habits, activity and mindset • Help and feedback built in One note on health. Weighly is a self-tracking tool, not a medical device, and it does not give medical, nutritional or health advice. Calorie targets, trends and projected dates are estimates to help you plan, not medical guidance. If you have any concerns about your weight or your relationship with food, please speak to a health professional. Questions, ideas or bugs? We read everything. info@bitcraftery.com weighly.bitcraftery.com Weighly by BitCraftery, a UK sole trader. Terms of Use (EULA): https://weighly.bitcraftery.com/terms

Screenshots

Gain Weight4 screens
Weighly4 screens

Verdict

The call

The clearest difference is in-app purchases: Weighly at none against Gain Weight's 2. Gain Weight's advantage is update cadence (daily vs every 5 days). On price, ads, device support and iOS requirement 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. Gain Weight sells 2 in-app purchases, starting at $9.99 per month. Weighly asks for nothing beyond the download.

UpkeepUpdate frequency

Gain Weight ships an update daily, Weighly every 5 days. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 5 level
Gain Weight versus Weighly: the parameters behind the verdict, then further details
ParameterGain WeightWeighly
PriceFreeFree
Update frequencyDaily — betterEvery 5 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017
Further details — not scored
Size17 MB51 MB
Age rating4+4+
DeveloperMoo & CompanyBabak Rezai

In-app purchases

2 purchases

Gain Weight

Subscriptions2
  • StackCal Pro 月額プラン7 Days trial$9.991 Month
  • StackCal Pro 年額プラン7 Days trial$49.991 Year
None

Weighly

No in-app purchases

Questions

Is Gain Weight free?
Gain Weight is free to download, with in-app purchases available.
Is Weighly free?
Weighly is free to download, with no in-app purchases.
Do Gain Weight or Weighly have ads?
Neither Gain Weight nor Weighly shows ads.
Which is updated more often, Gain Weight or Weighly?
Gain Weight ships an update daily, and Weighly every 5 days. Most recently, Gain Weight was updated on October 25, 2026 and Weighly on October 18, 2026.

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