Gain Weight - StackCal
Photo AI Calorie Tracker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
You can now choose kg or lb for weight.
Improved calorie chart selection, tapping, and scrolling behavior.
Refined display text and stability across the app.
The developer, Moo & Company, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Moo & Company
- Size
- 18 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- StackCal Pro 月額プラン $9.99
- StackCal Pro 年額プラン $49.99
- Copyright
- © 2026 Moo & Company