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.
Matter pairs personalized nutrition intelligence with precisely tailored meals, serving as your nutritionist and private chef.
Free
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.
Your first Build Kit is free with a verified email.
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 Matter: Intelligent Nutrition: map the core Food & Drink workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Matter pairs personalized nutrition intelligence with precisely tailored meals, serving as your nutritionist and private chef. Matter’s proprietary technology gives you the ability to control your macros and calories for each meal, optimizing your daily intake so you can achieve your health goals. Our restaurant and app integration takes the work out of eating healthy by preparing your meals, tracking your macros and measuring everything you put into your body. Download now! Chat - Intelligent nutritionist designed to help you achieve any nutrition-based goal - One-tap logging directly from chat. Take a picture, type it or dictate exactly what you ate. We'll find all the ingredients for you. - Get real-time meal recommendations based on your calories and macros - Get nutrition plans built with your goals, your preferences and your health in mind. Always evolving with your life and never mandatory. Dashboard - A nutrition score that shows how you're doing day-to-day - A snapshot view of your daily macros, calories at the touch of your fingertips - View your upcoming orders and meals so you can stay on top of the day Ordering - Customize every macro that’s part of your dish. Want 150 grams of protein? You got it. Want to reduce the amount of carbs by 50 grams? Absolutely. - Meals are automatically tracked when you order - Fresh, healthy ingredients every time, always made-to-order Log - Extensive, verified food database captures accurate calorie and macro information - Photo-, barcode-, and food label-scanner - Voice-logging - Quick Add option, ideal for recipes - Notes, so you can record your daily habits - Timeline to track throughout the day - Metric and imperial measurements - Ability to save custom foods and meals We’re constantly making improvements so be sure to update our app! Follow us on Instagram for all the latest updates: @matterformula Visit us at matterformula.com to learn more. Terms of Use: https://matterformula.com/terms Privacy Policy: https://matterformula.com/privacy
Written user reviews are not shown here. Check current App Store reviews >
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: High delivery fees
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inaccurate ETAs
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited restaurant selection
Validate with people who use this workflow before building.
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.
Not assessed in a Build Kit yet.
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.