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.
App Overview
Chemical Maze - Shopping Companion
What’s in your Food? What’s in your Cosmetics? Are you at risk?
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.6
5 ratings · Top 50%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Chemical Maze - Shopping Companion: map the core Medical workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Implement a user-generated product submission feature.
Assumption to check: Limited product database leads to frustration.
Validate with people who use this workflow before building.
Hypothesis 2
Create a cohesive design system with a consistent style guide.
Assumption to check: Inconsistent user interface design.
Validate with people who use this workflow before building.
Hypothesis 3
Provide comprehensive ingredient and safety information.
Assumption to check: Lack of detailed information on products.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a freemium model with more features available for free.
Assumption to check: Subscription model might deter users.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
What’s in your Food? What’s in your Cosmetics? Are you at risk? The Chemical Maze – Shopping Companion App has been produced to make it simpler and easier to recognise food additives and cosmetic ingredients having the potential to cause discomfort and ill-health. With this recognition comes freedom of choice and for many a new lease on life. This App is based on the international best-selling book The Chemical Maze with more than 15 years of ongoing research. ▼ Easy to Use: ------------- Easily browse through either Food Additives or Cosmetic Ingredients Search for Additives/Ingredients by name Search for Food Additives by INS number - Example 621 or E621 - MSG User friendly rating codes (smiley, neutral and sad faces) for each Additive/Ingredient Sort by name, number and risk level ▼ Search results for Food Additives and Cosmetic Ingredients the way you want them: ---------------------------------------------------------------- Identify the Risk Levels of each Discover those to avoid based on Dietary Restrictions Identify those that may cause various Symptoms or Ailments Discover which ones Effect different parts of your Body or Systems Find out what they are Derived from ▼ Filter by Symptoms and Ailments : -------------------------------------------------- Acne Aggressive Behavior Allergies Asthma Behavioral Problems Confusion Depression Gastrointestinal Ailments Hay Fever Headache & Migraines Hyperactivity Learning Difficulties Skin Ailments (Eczema, Dermatitis, Itching, Hives, Rash, etc) Sleep Disturbance ▼ Filter by your Dietary Restriction : ------------------------------------------------- Vegetarian Vegan Celiac (Gluten Free) Contains Salicylates Lactose Intolerant ▼ Filter the Effects on your Body: -------------------------------------------- Carcinogenic Cardiovascular System Developmental System Endocrine System Gastrointestinal System and Liver Immune System Kidneys Musculoskeletal system Nervous System Malabsorption Reproductive System Respiratory System ▼ Filter by what they are Derived from: ----------------------------------------------------- Animal Bacteria Fish Gas Insect Mineral Plant Synthetic Genetically Modified (GMO) Petroleum Nano Technology Palm Oil
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
react-navigation
Zustand
expo-camera
BUILD KIT DIFFICULTY
Intermediate
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.
