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
Hatch Dragons
Discover Dragons like you’ve never seen before! Collect and care for hundreds of unique Dragons, uncovering their origins as they grow
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
2,914 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 Hatch Dragons: 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
Offer more customization features for dragons.
Assumption to check: Limited dragon customization options
Validate with people who use this workflow before building.
Hypothesis 2
Implement fair pricing strategies and more value in packs.
Assumption to check: In-app purchase prices can be high
Validate with people who use this workflow before building.
Hypothesis 3
Introduce new game modes and challenges to keep players engaged.
Assumption to check: Repetitive gameplay after a while
Validate with people who use this workflow before building.
Hypothesis 4
Improve ad placement and frequency to enhance user experience.
Assumption to check: Ads can be intrusive
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
Discover Dragons like you’ve never seen before! Collect and care for hundreds of unique Dragons, uncovering their origins as they grow. From playful Cat Dragons to rare Bluebell Dragons, every new Dragon you hatch and raise brings this cozy, peaceful world to life. Long ago, Dragons filled this enchanted forest, thriving alongside nature. Each evolved into forms as diverse as the surrounding flora and fauna. Some shimmered with glittering scales, others were soft and furry, and some even bloomed with flowers or mushrooms. When nearby mining drove the Dragons away, fog crept in and the forest fell silent for years. Now, join Liv the Elf to lift the fog, summon the Dragons home, and help the forest sparkle with life once more. GAME HIGHLIGHTS * Summon Dragons: Help Liv mix elements, gems, and more to call Dragons of all shapes, forms, and rarities to your forest. * Raise Dragons: Hatch eggs, feed your Dragons, and help them grow into magical, bonded companions. * Collect Hundreds of Dragons: Discover a magical array of Dragons that evolved alongside nature. * Uncover Lore: Reveal charming legends and little-known facts about your Dragons. * Explore and Restore: Clear the fog and help the forest awaken with life, magic, and folkloric friends. * Decorate Your Forest: Adorn your forest with plants and decor that possess magical abilities to help you progress. * Missions and Events: Missions, updates, and limited-time events bring exciting new Dragons, décor, and rewards. There’s always something new to discover! If you love Dragons, cozy collection games, and relaxing adventures, you will be enchanted by Hatch Dragons. ***** Hatch Dragons is developed and published by Runaway. This game is free to play but does contain in-app purchases. If you run into any issues while playing or you have any suggestions, please reach out to us at [email protected]
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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
React Native
Expo
Supabase
Redux
react-native-gesture-handler
react-native-reanimated
BUILD KIT DIFFICULTY
Intermediate
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.
