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
Twi Comprehensive
Twi Comprehensive is meant to introduce a non-Twi beginner to the spoken language
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
262 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 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Twi Comprehensive: map the core Education 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
Include more interactive elements like quizzes and flashcards.
Assumption to check: Limited interactive content in lessons.
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline access for downloaded courses.
Assumption to check: Lack of offline access to courses.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce adaptive learning based on user performance.
Assumption to check: No personalized learning paths.
Validate with people who use this workflow before building.
Hypothesis 4
Clarify pricing and benefits of different tiers.
Assumption to check: Subscription 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
Twi Comprehensive is meant to introduce a non-Twi beginner to the spoken language. It may also be used by those who have some knowledge of the language, but who want to improve their competence in it. Twi Comprehensive is divided into three sections; Vocabulary section, Dialogue section and Exercise section. The main focus of what the app deals with is the spoken language, and every effort has been made to ensure that the dialogues are as natural and as close to current everyday usage as possible. The app may be used with or without an instructor. It comes with audio accompanying every word or sentence, and the learner is advised to listen to them and shadow them as often as is necessary to get, especially, the intonation right. Twi Comprehensive is a must, not only for anyone who wants to relate to people from Ghana whether he or she is on a short or an extended visit, but also for non-Ghanaians who are interested in the Twi language or require a working knowledge in the language. Twi Comprehensive is heavily based on 'A Comprehensive Course In Twi (Asante) for the Non-Twi Learner' written by Professor Florence Abena Dolphyne. Professor Florence Abena Dolphyne has been teaching in the Department of Linguistics in the University of Ghana since 1965.
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
Supabase
React Navigation
TypeScript
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.
