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
VAMPIR
The Vampire MMORPG
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
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.
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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 included
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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
The Vampire MMORPG. VAMPIR! ■ Break the Taboo, Unleash Your Desire A brutal yet mesmerizing world forged from blood, horror, and sexuality. Experience the moment where beauty and brutality collide! ■ Drenched in Blood, Overwhelming Combat Impact Bloodlust laid bare from the first strike to the last in combat Experience the raw instinct of the vampire on a battlefield that pulses with life! ■ Safe Upgrade, Fierce War In this place where endless competition unfolds for different ends, through a constantly reshuffling system winners seize power, and losers walk away with meaningful rewards! ■ Effort and Spending: An Economy Where Everyone Shines Diamond farming fields, and the core resource, Trinity, spanning item crafting to trading! Free-to-play players grow by how hard they grind, paying players grow by how much they invest Experience a fair and sustainable economic system! Now, open the gates and become the master of a vampire world drenched in blood! ※ This app offers in-app purchases. You can disable this feature by adjusting your device settings. ※ By downloading this game, you agree to our Terms of Service and Privacy Policy. - Terms of Service: https://help.netmarble.com/en/terms/terms_of_service_en - Privacy Policy: https://help.netmarble.com/privacy_policy/thered
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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.
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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
