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
21 CFR Part 211 Guide
This app provides the full text of FDA’s 21 CFR Part 211 regulation for current Good Manufacturing Practice
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 21 CFR Part 211 Guide: map the core Business 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
Incorporate quizzes or interactive elements to enhance learning.
Assumption to check: Lack of interactive content or engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search filters and sorting options.
Assumption to check: Limited search functionality
Validate with people who use this workflow before building.
Hypothesis 3
Create forums or feedback mechanisms for users to connect.
Assumption to check: No user community or support
Validate with people who use this workflow before building.
Hypothesis 4
Offer a free trial period to increase user acquisition.
Assumption to check: High upfront cost with no free trial
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
This app provides the full text of FDA’s 21 CFR Part 211 regulation for current Good Manufacturing Practice. The app is provided as a handy, easily available mobile reference for practitioners of the regulation, who can access the content of the regulation at any time, no matter where they are. Features: - Navigate text using the Table of Contents - Search content using keywords - Bookmark pages of interest - Email a page to yourself or a colleague This app is provided by CIMINFO Software, Inc., a leading provider of 21 Part 11 compliant software and solutions to the FDA-regulated industry. CIMINFO provides software solutions to manage spreadsheets, documents, SOPs, databases, records, drawings, manufacturing equipment/assets, and training records. For more information, please visit www.part11solutions.com or email us at [email protected].
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
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BUILD KIT DIFFICULTY
Starter
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.
