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
Sci-Fi Keyboard
Make your keyboard a Sci-Fi input panel
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.7
9 ratings · Top 50%
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.
Build your own version
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 included14 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 Sci-Fi Keyboard: map the core Graphics & Design 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
Offer a larger, customizable emoji library.
Assumption to check: Limited emoji options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Simplify navigation and enhance user experience.
Assumption to check: Cluttered interface makes navigation difficult
Validate with people who use this workflow before building.
Hypothesis 3
Provide onboarding tutorials for new users.
Assumption to check: Lack of customization tutorials
Validate with people who use this workflow before building.
Hypothesis 4
Optimize performance to ensure smooth operation.
Assumption to check: Can slow down device performance
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
Make your keyboard a Sci-Fi input panel. Have fun typing with the style and sounds you love. Includes: • 20 preset themes • 81 background images (or use your own photos) • 44 animated GIF backgrounds • 50 key styles (or blank) • 35 fonts + default • Set 6 typing sounds (160 to choose from) • 50+ Languages/keyboard layouts (Asian writing languages are incomplete) • Lots of DIY tools and options to change the colors, height, vibration, popup, suggestions, and more. Some of the Sci-Fi styles are loosely modeled after popular sci-fi shows and movies. To parody how the sci-fi designers thought future displays would look while displaying meaningless information and having indecipherable use, I gave them actual function that makes sense. *These are generic images. Please do not ask me in reviews or by mail to include any trademarked names, logos, images or other properties. I respect copyrights and will not include them.
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
react-navigation
react-native-color-picker
react-native-emoji-picker
BUILD KIT DIFFICULTY
Advanced
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.
