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
Pesos to Dollars Conversion
Looking to quickly and easily convert your Mexican pesos to US dollars, or vice versa? Look no further than "Pesos to Dollars Conversion" – the must-have app for anyone who needs to make quick currency conversions on-the-go.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
1,057 ratings · Top 15%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 Pesos to Dollars Conversion: 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 more currency conversion options.
Assumption to check: Limited currency options may frustrate users
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline caching for previous conversions.
Assumption to check: No offline access for conversion
Validate with people who use this workflow before building.
Hypothesis 3
Offer an ad-free premium subscription.
Assumption to check: Ads may disrupt user experience
Validate with people who use this workflow before building.
Hypothesis 4
Provide graphs or charts for conversion trends.
Assumption to check: Lack of detailed historical data
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
Looking to quickly and easily convert your Mexican pesos to US dollars, or vice versa? Look no further than "Pesos to Dollars Conversion" – the must-have app for anyone who needs to make quick currency conversions on-the-go. With "Pesos to Dollars Conversion," you'll enjoy fast and accurate conversions between MXN and USD Dollars, thanks to our up-to-date currency exchange rates. Plus, our live rate updates mean you'll always have the most accurate information available, no matter where you are in the world. Our easy-to-use interface makes it simple to enter your desired conversion amount and quickly see the converted amount in the other currency. And with support for both Mexican MXN to USD and USD to MXN conversions, you'll never be stuck with a confusing currency conversion again. So whether you're a frequent traveler, an online shopper, or just someone who needs to convert currencies from time to time, "Pesos to Dollars Conversion" is the perfect app for you. Download it today and start converting with ease! Quick and easy conversions: The app offers a simple and intuitive interface that makes it easy to convert currencies on-the-go, saving you time and hassle. Up-to-date currency exchange rates: The app uses live currency rate updates to ensure that you always have the most accurate and current information at your fingertips. Supports both MXN to USD and USD to MXN conversions: The app provides support for both directions of currency conversion, so you can easily convert between pesos and dollars in either direction. Convenient and portable: The app is a handy tool that you can carry with you anywhere, making it easy to convert currencies wherever you are in the world. Saves you money: By helping you quickly and accurately convert currencies, the app can help you avoid costly mistakes when making purchases or transactions in another currency.
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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
Axios
Zustand
React Navigation
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.
