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
The Gluten Free Scanner Full
*** FULL VERSION FEATURES:
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
146 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/
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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 The Gluten Free Scanner Full: 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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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
Enhance the product database and allow users to contribute.
Assumption to check: Limited product database leads to missing items.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize camera performance and add a flashlight feature.
Assumption to check: Slow barcode scanning in low light conditions.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a verification process for user reviews.
Assumption to check: User reviews can be sparse or unreliable.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the paywall and provide clear value propositions for premium features.
Assumption to check: In-app purchases can be confusing to navigate.
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
*** FULL VERSION FEATURES: · SEARCH by Product Name, Brand or Category , over 500,000 products (80,000 GLUTEN-FREE) · The “DISCOVER GLUTEN FREE” option is a great way to discover your new gluten free favorites! · DINING CARD / TRAVEL CARDS, to eat safely in restaurants domestically and abroad · SEARCHABLE LIST OF SAFE/UNSAFE INGREDIENTS (for shopping, cooking, restaurants) · UNLIMITED SCANS #1 GLUTEN FREE APP on the USA App Store Enjoy the Gluten Free living with the best app. It works simply and fast, using your iPhone camera to scan the barcodes of the products you buy. We maintain up-to-date the largest database of food and drink products of the US, to detect the presence of gluten. Over 500,000+ products and growing. Our team of registered nutritionists and researchers take care of the accuracy of the database. ** USER REVIEWS ** - Deborah Hurd: "A family member was recently diagnosed with celiac disease and this app has been a life saver" - Elisabeth Kendall: "The best app I found for GF. Super handy when shopping!" - John Humeniuk: "Simple to use and extremely helpful. I used this app to check on products as we grocery shopped and found it to be an invaluable resource" Every scan will be analyzed on four levels, to provide greater information and protection. This enables you to make a more informed decision as to whether or not to try the product. This enables you to make a more informed decision as to whether or not to try the product. We have plans for new features in the future and always welcome your suggestions. http://scanglutenfree.com Note: The Gluten Free Scanner only works in the US. Terms of use: http://scanglutenfree.com/eula
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
Zustand
axios
@react-navigation/native
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.
