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.
Runa is an RPG Maker player for iPhone and iPad
$2.99 · 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 Runa: RPG Maker & VN Player: map the core Utilities 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Runa is an RPG Maker player for iPhone and iPad. Import and play the RPG Maker games you already own in full-screen landscape with touch controls and a customizable virtual gamepad — no PC required. Whether your games were created with RPG Maker XP, VX, VX Ace, MV, or MZ, Runa makes it easy to bring your collection to iPhone and iPad. SUPPORTED ENGINES • RPG Maker MV and MZ (web runtime included) • RPG Maker XP, VX, and VX Ace (native runtime included) HOW IT WORKS 1. Zip your RPG Maker game folder on your Mac or PC. 2. Open Runa and tap Import. 3. Choose the ZIP file from Files or iCloud Drive. 4. Runa automatically detects the engine and adds the game to your library. 5. Tap Play and start your adventure. FEATURES • Full-screen landscape gameplay with immersive mode • Virtual gamepad with remappable buttons • Move and resize on-screen controls to fit your play style • Per-game settings saved automatically • Export and import save files as ZIP archives • Direct compatibility with RPG Maker XP and VX Ace save files from PC • Library search and filtering by engine • Sort games by name or recently played • Automatically generated cover art from game title screens • Offline play after import — no internet connection required DESIGNED FOR RPG MAKER PLAYERS Runa is built for players who enjoy RPG Maker games on mobile. Import your own game files and continue your adventures anywhere on iPhone or iPad. IMPORTANT Runa is a game player and does not include, sell, host, or distribute game content. All games must be legally obtained by the user. Users are responsible for ensuring they own the rights to any games they import. Paid once, supported ongoing. Reach us anytime at [email protected] - we read every message OPEN SOURCE Powered by mkxp-z (GPL v2). Source code: github.com/mkxp-z/mkxp-z
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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.