Exact targets, intake vs output, weight trends, sleep & projections in one precision body-composition system. Free to download. Premium access requires a Pro subscription
Precision. Control. Measurable Results.
CORPUS is a precision calorie tracker, macro tracker, and body-composition system built for people who want measurable control over nutrition and physique-related outcomes.
This is not a casual lifestyle app.
It is a serious nutrition and tracking system.
If you lift consistently, care about your body composition, and want black-and-white clarity over your intake, output, and adherence, CORPUS gives you the structure to execute with precision.
CORPUS is free to download. Premium access requires CORPUS Pro, an auto-renewing subscription. Eligible new subscribers may receive a 7-day free trial where available. Pricing, trial availability, and eligibility vary by plan and storefront.
HOW CORPUS WORKS
• Calculates calorie and macro targets based on your body, goal, and timeframe
• Tracks calories, protein, carbs, fat, fiber, and selected micronutrients
• Compares intake against resting burn, activity, and estimated daily expenditure
• Shows daily execution clearly, including adherence, deficit or surplus, BMR, TDEE, sleep, and weight
• Displays daily, weekly, monthly, phase, and custom-range summaries
• Visualizes energy balance, projected change, and compliance over time
Transformation is not random.
Energy balance matters.
Consistency compounds.
CORPUS makes execution visible.
BUILT FOR SERIOUS USERS
Ideal for:
• Lifters
• Cutting phases
• Gaining phases
• Maintenance phases
• Body recomposition
• Macro-based nutrition
• Users who want more precision than generic food logging apps provide
CORPUS is built for people who want structure, not noise.
Not vague wellness tracking.
Not motivation-first habit gamification.
Not guesswork.
FEATURES
• Precision calorie and macro targets
• Daily Day Totals with intake and output visibility
• Weight tracking with daily, weekly, and monthly trend views
• Sleep tracking with quantity, consistency, and trend visibility
• Performance overview, report cards, and projection tools
• Day and meal overview sheets for compact breakdowns
• USDA food import
• Nutrition label scanning
• Saved foods and repeatable meal/day templates
• Apple Health integration for activity and workout data
• Common micronutrient targets personalized by age and sex
• Clean, focused interface built for repeatable daily use
CORPUS AI
CORPUS also includes AI-powered meal estimation tools to help when exact entry is not practical.
AI meal estimates are designed for speed and convenience, but they are still estimates — not lab measurements.
SUBSCRIPTION TERMS
CORPUS Pro is available as auto-renewing monthly and yearly subscription options. Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Trial availability, pricing, and eligibility may vary by storefront and are shown before purchase.
Privacy Policy: https://yourcorpus.com/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
THE CORE PROMISE
CORPUS is built to help you define your targets clearly, track your execution honestly, and understand the direction your behavior is creating over time.
It provides the infrastructure.
You bring the discipline.
I’ve tried a bunch of calorie and macro tracking apps, but CORPUS is the first one that actually feels built for people serious about body composition and nutrition. The calorie tracking is fast, the macro tracking is super clear, and I like being able to track meals, body weight, and progress all in one place. Most fitness apps feel gimmicky or bloated, but this one feels precise and trustworthy. It genuinely helps me stay consistent with my diet and understand what’s actually happening with my body over time.
Easily Track Macros with Accuracy
Vinny13McComb
The easiest way to track macros. You can upload meals in 4 different ways leveraging AI to figure out what’s in your daily meals and track against your goals. Super easy in any scenario. From casually tracking on the go, to in-depth USDA micro-nutrients and even manual weighing of food. I’ve been using CORPUS for about a week and it’s been super helpful for tracking calories, macros, and meals without making the process feel complicated. Having multiple ways to add meals is really nice because it’s convenient depending on the day, sometimes I want to add something quickly, sometimes I want to be more detailed, and the app makes both easy.Once you get the hang of it, it’s honestly pretty easy to use. CORPUS has helped me understand nutrition better too, especially that it’s really about hitting your macros while staying within your calorie goal. It feels like a clean, serious nutrition app for people who want better control over their diet, meal tracking, fitness goals, and body composition.
Best I’ve used. Got shredded.
Cole Fury
CORPUS is the first nutrition app I’ve used that actually makes calorie tracking and macro tracking feel simple without dumbing it down. I use it to track meals, calories, macros, body weight, and progress, and it has made it way easier to stay consistent with my diet and fitness goals, and was what finally got me where I wanted to be aesthetically. What I like most is that there are multiple ways to add meals depending on the day. If I need to log something quickly, I can. If I want to be more detailed and precise, I can do that too. Once you get the hang of it, the app is genuinely easy to use.CORPUS also helped me understand nutrition better. It makes it clear that the goal is not just eating “healthy,” but hitting your macros while staying within your calorie goal. For anyone serious about meal tracking, body composition, cutting, bulking, or just getting more control over their nutrition, this app is incredibly useful.
Food logging is smoother and more reliable.
This update improves USDA search results for common whole foods, makes Manual Entry, Scan Label, and Search USDA easier to find, adds direct camera capture for nutrition labels and meal photos, lets you review and zoom source photos before saving, and adds Done controls to key numeric keyboards.
Also includes polish and reliability improvements for food acquisition flows.
Version 1.0.11
The developer, Stamen Systems LLC, 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
Contact Info
User Content
Identifiers
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Stamen Systems LLC
Size
18.2 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.1 or later.
iPhone Requires iOS 26.1 or later.
iPad Requires iPadOS 26.1 or later.
Mac Requires macOS 26.1 or later and a Mac with Apple M1 chip or later.