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
MapleStory R- Evolution US
[MapleStory R- Evolution US] × Bugcat Capoo Collaboration Is Coming!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 5.0
5 ratings · Top 5%
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 included18 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 MapleStory R- Evolution US: map the core Games 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
Implement guided tutorials and tooltips.
Assumption to check: Poor onboarding experience for new players
Validate with people who use this workflow before building.
Hypothesis 2
Enhance friend invitation and chat functionalities.
Assumption to check: Limited social features for connecting with friends
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the purchasing process with clear explanations and visuals.
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Introduce offline gameplay features.
Assumption to check: High dependency on continuous internet connection
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
[MapleStory R- Evolution US] × Bugcat Capoo Collaboration Is Coming! Join exclusive events to claim limited rewards, including Capoo outfits, pets, stickers, and more. Download now to receive an SSR pet, Zakum outfit set, and 170 draws. Take part in official events to compete for a share of the $10,000 prize pool, with chances to win an iPhone 17 Pro, PS5, or Switch 2! =====Game Features====== [Official IP Authorization, Relive Classic Adventure] Relive the classic visuals and return to Maple World. Reunite with familiar faces, begin your journey of memories. [Auto-Battle, Effortless Growth] Command with one hand. Play anytime, anywhere. Level up offline 24/7. Enjoy effortless auto-battles. [Pet Evolution, All Out Attack] Diverse cultivation unlocks multiple evolutionary forms. With Seven Pets by your side, experience full power. [Fashion Forward, Shine with Style] Abundant outfits, limitless combinations. Set the style, and be the brightest spotlight in Maple World! Dominate the massive GVG battlefield with superior strategy and teamwork. Command your forces. Coordinate perfectly. Seize Victoria Island! [Exclusive Home, Cozy Space] Craft your dream home with hundreds of customizable furnishings. After every adventure, return to your own peaceful haven. [All Pets Battle, Classic Showdown] Command your pets and face iconic bosses once more. Feel the thrill reignite with the legendary soundtrack! [Strategic Synergy, Fresh Experience] Combine pet and hero skills to unleash powerful combos. Discover unique tactics and master truly strategic battles. [Map Renewal, Local Customization] Dive into world premieres: exclusive maps and events! All content tailored just for our Western players. Tap to Team Up, Lead Your Pet Legion! Jump into the adventure and join the community for exclusive rewards! [Follow Us] Discord：https://msrdc.onelink.me/bluj/uyn5zfpk Facebook (EN)：https://msrus.onelink.me/xKn7/cu47c4yj Facebook (ES)：https://msrsp.onelink.me/D0n0/75cqw72u Reddit：https://www.reddit.com/r/MapleR/ Website（US）：https://msrus.rastargames.com/
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 Navigation
Supabase
Axios
React Native Gesture Handler
Expo
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.
