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
1828 Dictionary - Webster's
Explore history with the 1828 Dictionary app, a modern take on Noah Webster's classic
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
193 ratings · Top 5%
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 included16 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 1828 Dictionary - Webster's: map the core Reference 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
Provide extensive definitions and examples from multiple sources.
Assumption to check: Limited word definitions compared to other dictionaries
Validate with people who use this workflow before building.
Hypothesis 2
Implement faster search algorithms and indexing.
Assumption to check: Search functionality can be slow
Validate with people who use this workflow before building.
Hypothesis 3
Add offline functionality to access definitions without internet.
Assumption to check: No offline access to definitions
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the paywall and offer clear benefits for premium features.
Assumption to check: In-app purchase model can be confusing
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
Explore history with the 1828 Dictionary app, a modern take on Noah Webster's classic. Enjoy quick searches, favorite words, report issues, and discover daily top words. More features are on the way! ++ HIGHLIGHTS ++ - Clean and modern design - Performant app without Ads - No Internet Connection Required - Super Easy and Intuitive Navigation - Speedy Search Feature - Favorites Feature to save certain words - Top 3 Words of the Day feature - Constant Updates to bring you more up-to-date content - Home Screen Widget to Explore new words anytime, anywhere ++ DON'T BE A STRANGER ++ We have some exciting features coming soon, but you can always email suggestions or write a review for the app. Don't forget to share this app with a friend, because your support will make this app incredible. Contact us: [email protected] ++ WE CARE ABOUT YOUR PRIVACY ++ Privacy Policy: https://apps4world.com/privacy-policy-apps.html Terms & Conditions: https://apps4world.com/terms-and-conditions-apps.html
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
Zustand
React Navigation
React Native Paper
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.
