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.
Nutrients is nutrition at your fingertips! How much sugar is in an apple? How much potassium is in a banana? Discover nutrition facts on tens of thousands of foods complete with all vitamins, minerals, amino acids, fa...
$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 Nutrients - Nutrition Facts: 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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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: Limited food database compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchases are not clearly communicated
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional performance issues with large data sets
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface feels dated
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.
Nutrients is nutrition at your fingertips! How much sugar is in an apple? How much potassium is in a banana? Discover nutrition facts on tens of thousands of foods complete with all vitamins, minerals, amino acids, fats, fatty acids, sugars, sterols, and more compounds like caffeine. Nutrients works completely offline with no internet required! Search our entire database of nearly 200,000 foods without using any data. "After a heart attack, I really needed a good tool to determine the fat content of my diet. Nutrients has a comprehensive, well-tended, and ever-expanding database of nutrition info. It's easy to search and attractively presented. Its built-in unit conversion ability makes it simple to compare servings of like amounts of diverse foods. Best app for this purpose I could find, and I looked at a bunch." ▸ Literally a lifesaver by DanCasali Create your own recipes! Add ingredients and select the serving size to get the most comprehensive list of nutrition facts for your recipes. "Being a type 1 diabetic, I have to count carbs in everything I eat. This app has made it easier to look up the nutrition information on many foods. Truly an amazing app!! Every diabetic should have this app." ▸ Great for diabetics by Diabeticfittie Keep a record of the foods you eat every day! Nutrients features a new and improved food journal with a complete breakdown of your daily nutrition and options to change the specific daily values of each nutrient. Nutrients even syncs your journal to the Health app making it easy to see what nutrients you're consuming with other apps. "Finally an app that gives a complete nutritional breakdown of food. This holistic approach takes the focus off calories and back onto food as a whole. As a nutritionist, I highly recommend it to all my clients." ▸ iPhone's best food reference guide by The Shazmeister Find foods highest in specific nutrients like vitamins and minerals. The nutrient browser sorts foods by the selected nutrient and food category. Find fruits with the highest amount of potassium or vegetables with the most iron. The combinations are endless! "I am getting my bachelor's in Nutrition and Dietetics so I am always looking up nutrition information. This is a beautiful, easy to use app that is full of nutritional information! I love it!" ▸ I love this app! by Evbaker92 Create your own list of favorite foods! Use this feature with the nutrient browser to find out which of your favorite foods are highest in specific nutrients such as vitamin A or iron. "Great app! Especially to nutritionists, when a patient asks for some random ingredient we don't know all its values! Works like a lucky charm!" ▸ Great! by Awesome short stories Show and hide foods by categories such as hiding meats for vegetarians or dairy & eggs for vegans to customize Nutrients to your diet. "This app is the best food app ever. It has never frozen on me and it is so informational. It helps my fiance and I keep healthy and buy the right foods." ▸ Amazing!!! by Kana557 Search for Baked Foods, Beef, Beverages, Breakfast Cereals, Cereal Grains & Pasta, Dairy & Eggs, Fish & Shellfish, Fruits, Nuts & Seeds, Oils, Pork, Poultry, Seafood, Spices & Herbs, Vegetables and more in Nutrients! "An embarrassment of riches! The most thorough and complete nutrition atlas I have ever seen! If you want to know what you eat I strongly suggest this great app!" ▸ Unreal! by Whatrix Search for foods like "cooked salmon" or "egg whites" and perform unit conversions using natural language such as "tablespoons to 1/4 cup" or "cups in a gallon". "Love it! The update is amazing. Very informative app. Especially if you are trying to eat healthier or get more of one type of nutrient. You can eat more of that type of food." ▸ Best app ever by Deen1stApps Nutrition data is provided by the USDA.
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.