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
GGEMU Retro Go
GGEMU Retro Go is a powerful all-in-one emulator for iOS, bringing your favorite retro games together in one seamless experience
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 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.
JavaScript is required to complete mailbox verification.
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 GGEMU Retro Go: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Curate a larger library and offer exclusive titles.
Assumption to check: Limited game selection compared to other retro gaming apps
Validate with people who use this workflow before building.
Hypothesis 2
Focus on QA and smooth performance.
Assumption to check: Poor user reviews indicate bugs and crashes
Validate with people who use this workflow before building.
Hypothesis 3
Integrate multiplayer options and social sharing.
Assumption to check: Lack of social features for sharing or playing with friends
Validate with people who use this workflow before building.
Hypothesis 4
Simplify control customization for ease of use.
Assumption to check: Confusing controls configuration
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
GGEMU Retro Go is a powerful all-in-one emulator for iOS, bringing your favorite retro games together in one seamless experience. From classic arcade titles to portable consoles, DOS, and even Flash games — everything you love, all in one place. Key Features Wide Platform Support Play games across a broad range of systems: Nintendo: NES / Famicom, SNES / Super Famicom, Game Boy (GB/GBC/GBA), Nintendo 64, Nintendo DS, Virtual Boy Sony: PlayStation 1 (PS1), PlayStation Portable (PSP) Sega: Genesis / Mega Drive, Master System, Game Gear, Sega CD, 32X, Saturn Retro PC & More: DOS (.jsdos / .zip), Flash (.swf), PC Engine, Neo Geo Pocket, WonderSwan, Atari Jaguar Instant Play, Zero Setup No complicated configuration. Just drag and drop your ROMs into the app, or browse your local files to start playing instantly. Local Network Multiplayer Enjoy smooth, low-latency multiplayer over your local network. Extensive Controller Support Play your way with support for: Nintendo Switch Pro Controller and Joy-Con Nintendo Switch Online controllers (NES, SNES, N64) PlayStation 4 and PlayStation 5 controllers Xbox One S and Xbox Series X controllers MFi game controllers Bluetooth and wired keyboards Save Anytime Save and load game states at any moment — pick up right where you left off. Capture & Share Record gameplay or take high-quality screenshots with built-in FFmpeg-powered media export. Local Sharing Easily share your gameplay experience with others on the same network. Disclaimer GGEMU Retro Go is a shell application designed to run user-provided game files. The app does not include or distribute any game ROMs, copyrighted software, or digital assets. Users are responsible for ensuring they have the legal rights to use any files loaded into the app.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Supabase
Zustand
React Navigation
React Native Reanimated
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.
