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
Dungeon and Puzzles
--
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
160 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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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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.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
-- Awards: ● 2021 BitSummit THE 8th BIT: Official Selection ● Busan Indie Connect 2020: Excellence in Casual ● Bahamut 2020 ACG Creation Contest: Bronze Award About: Dungeon and Puzzles is a game that challenges players' 2D spatial perception and logical thinking. A player can use a sword to attack monsters, or a bow and an arrow to destroy enemies from afar. Pushing the obstacles back with a shield and pulling the monsters with a pair of special gloves. There are 150 handcrafted rooms in the dungeon. Players will have to get a better understanding of the game to solve the puzzles and clear the rooms. To beat the puzzles with fewer moves, achieving advanced goals, players will have to try different tactics and move combinations to find an optimized solution for the room. Sometimes a player would need to put the old solution aside and take on a new perspective towards the problem, reexamine and rethink before making a move. Features: ● Dungeon + Puzzle + Sokoban ● 150 handcrafted rooms ● Fantasy themed pixel art ● Non-linear dungeon map -- ● Follow us on Twitter https://twitter.com/nekolyst ● Like us on Facebook https://www.facebook.com/Nekolyst ● Join our Discord server https://discord.gg/A7Sss9d
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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
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.
