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
Emulator for Pico-8: Picpic
The First Pico-8 Emulator on the App Store!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
49 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's included17 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 Emulator for Pico-8: Picpic: map the core Developer Tools 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
Optimize performance and expand supported game types.
Assumption to check: Limited game compatibility and performance issues.
Validate with people who use this workflow before building.
Hypothesis 2
Create a more modern and user-friendly interface.
Assumption to check: Poor user interface design and navigation.
Validate with people who use this workflow before building.
Hypothesis 3
Implement reliable data persistence for game states.
Assumption to check: Inconsistent saving/loading of games.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance stability and conduct thorough testing before release.
Assumption to check: Frequent crashes and bugs.
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
The First Pico-8 Emulator on the App Store! PicPic brings the charming world of Pico-8 games to your iPhone, letting you play thousands of tiny, handcrafted games natively on iOS. What is Pico-8? Pico-8 is a fantasy console, a creative platform with deliberate constraints that inspire developers to build small, expressive games in 128x128 pixels with a 16-color palette. The result is a massive library of free, community-made games spanning every genre. Features: • Native Emulation – Play .p8 and .p8.png cartridges at full speed with audio. • Import Cartridges – Load games from Files, Safari, or import entire folders at once. • Touch Controls – On-screen D-pad or 360° analog joystick, designed for mobile play. • Multicart Games - Play larger adventures that span multiple cartridges. • Local Multiplayer - Share the fun with multi-controller support on cartridges built for more than one player. • Mouse & Touch Games – Play cartridges that use Pico-8's mouse/pointer input natively. • Save States – Save anytime and optionally enable autosave. • Game Library – Organize, add to favorites, search, and manage your cartridge collection. • Customizable Layout – Reposition and resize controls with the interactive editor. • Retro Aesthetic – Authentic 128×128 pixel display with the classic Pico-8 palette and optional filter. • Controller Support – Play with your favorite gamepad. • Keyboard Support – Full keyboard input on Mac and iPad. • Mac Support – Also runs natively on Mac M-Series. • Landscape Mode – Play in landscape or portrait at any time. • Haptic Feedback – Tactile response on every button press. • Personalization – Custom app icons and console themes, including OLED Black and Retro. • Starter Games – A few great games included so you can play right away. • Optimized for iPad – Adaptive layouts for all screen sizes. • No Ads – Clean, uninterrupted play. How It Works: Import Pico-8 cartridge files into your library. PicPic runs games natively: no web views, no streaming, no internet required. Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/ Privacy Policy: https://sa-moo-rai.com/about Note: this software is NOT related to Pico-8, or otherwise related to or supported by Lexaloffle Software
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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
Zustand
react-navigation
expo-file-system
expo-permissions
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.
