Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
CalSnap makes calorie tracking effortless
$4.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for CaloriesSnap: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Users often find calorie tracking apps tedious to use.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Many users struggle with setting and tracking realistic goals.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Users dislike ads and paywalls interrupting their experience.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Users report inaccurate nutritional information.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
CalSnap makes calorie tracking effortless. Just snap a photo of your meal and our AI instantly identifies every ingredient, calculates calories, and breaks down your macros — no manual entry, no barcode scanning, no food database searching. HOW IT WORKS 1. Take a photo of your meal (or pick from your gallery) 2. AI analyzes your food in seconds, identifying individual ingredients 3. Review the detailed breakdown and adjust servings if needed 4. Log it with one tap — done! SMART AI ANALYSIS Our AI doesn't just guess — it breaks down complex meals ingredient by ingredient. A salad isn't just "a salad" — CalSnap identifies the greens, protein, dressing, toppings, and more, each with its own calorie count. It even estimates portion weight and provides a confidence rating for every analysis. Not food? No problem. CalSnap recognizes non-food images and lets you know to try again with an actual meal. PERSONALIZED GOALS CalSnap calculates your ideal daily calorie target based on your age, weight, height, and activity level. Customize your macro split (protein, carbs, fat) to match your diet style — whether it's balanced, high-protein, keto, or anything in between. BEAUTIFUL DASHBOARD Your Home screen gives you everything at a glance: • Animated calorie ring that turns coral when you go over your goal • Color-coded macro progress circles for protein, carbs, and fat • Weekly calendar showing your logging consistency • Daily meal list with photos and full nutrition info • Logging streak counter to keep you motivated • Rotating daily wellness tips DETAILED MEAL INSIGHTS Tap any logged meal to see the full picture — a large photo, total calories, macro bars, and a complete ingredient-by-ingredient breakdown with portion sizes and individual calorie contributions. PROGRESS ANALYTICS Track your journey over time: • 7-day and 30-day calorie intake charts with goal line • Average daily macro trends • Weight tracking with trend visualization • Consecutive day streaks with motivational messages DESIGNED TO DELIGHT CalSnap features a stunning dark-mode interface with a warm rose, lavender, and peach color palette. Every interaction feels premium — from staggered fade-in animations and shimmer effects to haptic feedback and smooth spring transitions. The floating camera button is always one tap away. YOUR DATA, YOUR DEVICE All your meals, photos, and profile data are stored locally on your device. Export your complete nutrition history as JSON anytime. No account required, no cloud storage, no data shared with third parties. KEY FEATURES • AI-powered food photo recognition and analysis • Ingredient-level calorie and macro breakdown • Personalized calorie and macro goals • Adjustable serving sizes with real-time recalculation • Beautiful animated calorie ring and macro circles • 7-day and 30-day progress charts • Weight logging and trend tracking • Automatic meal type detection (breakfast, lunch, dinner, snack) • Photo gallery import support • Camera flash control • Data export as JSON • Metric and imperial unit support • No account required — fully private Download CalSnap and start eating smarter today.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.