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
Chichén Itzá audioguide
Embark on an immersive journey through the heart of the ancient Mayan civilization at Chichén Itzá!
$7.99 · In-app purchases
PRICE
$7.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 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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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 Chichén Itzá audioguide: map the core Travel 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 downloadable audio guides for offline use.
Assumption to check: Limited offline access to content
Validate with people who use this workflow before building.
Hypothesis 2
Introduce subscription model for regular updates and multiple tours.
Assumption to check: High price point for single purchase
Validate with people who use this workflow before building.
Hypothesis 3
Add quizzes or gamification elements to enhance user engagement.
Assumption to check: Lack of interactive features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create custom tours based on their interests.
Assumption to check: Limited personalization options
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
Embark on an immersive journey through the heart of the ancient Mayan civilization at Chichén Itzá! This immersive audio guide will transport you back in time as you explore the sacred temples and other structures of this UNESCO World Heritage site. Over 45 minutes of high-quality narration will reveal the secrets behind the architectural and cultural marvels at Chichén Itzá, from the iconic El Castillo pyramid to the Ball Court and Sacred Cenote. Interactive notifications will alert you as you approach each point of interest, so you’ll never miss a highlight of this mystical wonder of the ancient world. By the end of your visit, Chichén Itzá's mysteries will be unveiled before your eyes! 100% offline and ad-free, this is the perfect companion for your journey into the heart of Mayan history without an internet connection. Experience the grandeur of Chichen Itza through the stories, legends and facts brought to life in this captivating audio tour. A magical adventure awaits—download now and unlock the secrets of the Mayan kingdom, the most important historical site in Yucatan Mexico!
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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
React Navigation
axios
expo-av
@react-native-community/geolocation
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.
