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.
Whether you're a business or leisure traveler, hopping from country to country is a breeze when you have Currency+ in your hands! This Universal currency conversion application for the iPad/iPhone/iPod Touch shows yo...
$1.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Currency+ (Currency Converter): map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited currency options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of customization in settings
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional inaccuracies in conversion rates
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline mode for conversions
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Whether you're a business or leisure traveler, hopping from country to country is a breeze when you have Currency+ in your hands! This Universal currency conversion application for the iPad/iPhone/iPod Touch shows you what you're paying instantly and is easy to use even when you have jet lag. KEY FEATURES: - Currency Calculator - Apple Watch Support - Today Widget - Support For Over 150 World Currencies, Precious Metals & Bitcoin - Historical Charts - Trend Analysis - Background Rate Updates & Currency Alerts - Editable Calculator Tape - Inverse Currency Calculations - Transaction Fees or Taxes - 100% Ad Free What Makes Currency+ stand out from other Currency Apps? Currency Calculator When you are traveling in a different country, most of the time your focus will be on converting the local currency back to your home currency. The built in calculator lets you focus on two selected currencies on one screen. The built in calculator remains on the screen at all times making data entry quick and easy. Apple Watch Use Currency+ on the Apple Watch. See your favorites currency list and your Currency Alerts directly on the watch. Today Widget Use the Today Widget to quickly see the conversion rates between all your favorite currencies. Tap the rate to reverse the conversion. Tap any of the currencies on the list to set as the base currency. Support For Over 150 World Currencies & Precious Metals For times where you want to keep track of many currencies at one time, the favorites list is where you need to go. You pick from over150 world currencies and precious metals (powered by Yahoo.com). Selecting any currency in your list, enter a value and the rest of the currencies in your list will show you that amount in their own currency in real time. Historical Charts Currency+ has historical charts. You can view historical currency conversion charts for any two currencies. Touch the chart with a single finger to see data from any period in the past. Touch the chart with two fingers to compare currency exchange rates from any two past periods. Show charts for 1 day (real time intraday), 5day, 3 month, 6 month, 1 year, 2 years and 5 years. Currency Trends With Trends, you can select any of the 150+ world currencies and compare it to a list of other currencies to see how it has performed over time. See if your currency has strengthened or weakened. Select your time period from days to years. Export your work to an email, text, note, etc using the trend share sheet. Background Rate Updates & Currency Alerts Currency+ will go out and update your currency rates without taking your device out of your pocket. Whenever you open Currency+, your data will always be up to date. Do you want to be notified when a currency goes above or below a certain value? If so, Currency+ can notify you of these changes without the need to open the app. You will receive a push notification on your device whenever the currency you are watching goes beyond the limit you set. Editable Calculator Tape Currency+ has an integrated calculator tape that keeps track of everything that you do. You can send any value from the tap to any of your favorite currencies. You can edit/delete/insert tape values and your calculations will automatically update. Finally, you can put comments on any of your tape values to help you keep track of what your numbers stand for. Inverse Currency Calculations Need to do inverse or reverse currency calculations? Currency+ can switch between standard and inverse currency conversion modes on the fly. Transaction Fees or Taxes Currency+ can factor in transaction fees (or tax) automatically. Individuals rarely convert money at published exchange rates - most banks and exchange offices charge a fee. Enter the transaction fee percentage to give you a better estimate of your 'real' conversion rates. Make the leap with Jump Gap Software's Currency+, the currency converter that takes you around the world and back.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.