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
Dr. Panda Space
**"There is so much to learn and explore, both for us and our kids" by Geeks with Juniors** 3… 2… 1… Lift off! It's time to take off with Dr
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.1
53 ratings · Top 30%
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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Dr. Panda Space: map the core Education 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
Regularly refresh activities and introduce new themes.
Assumption to check: Limited content updates leading to user disengagement
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear breakdown of costs and value for each purchase.
Assumption to check: In-app purchases may confuse parents about total costs
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate guided navigation or tooltips for young users.
Assumption to check: Navigation can be unintuitive for young users
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a reward system with badges and progress tracking.
Assumption to check: Lack of feedback for completed activities
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
**"There is so much to learn and explore, both for us and our kids" by Geeks with Juniors** 3… 2… 1… Lift off! It's time to take off with Dr. Panda in Space! EXPLORE SPACE Once you customize your own space ship and blast off, set your course however you’d like! Explore space and discover asteroids, new planets, and maybe even a black hole! Where should you and Dr. Panda go next? It’s all up to you! LOTS TO DO While you explore the universe, you’ll find friendly aliens as well as familiar friends—and they all need your help! Fix a space ship, repair a satellite, find your way through a meteor maze, and more. PLAY WITH ALIENS As you discover the galaxy, you’ll find different varieties of plants that these two cute aliens just love to eat! Play with them and feed them what you find to see what happens! Will they breathe fire? Shrink? Grow? Experiment and find out! **"Thoughtful purpose of entertaining and rewarding curiosity" by Smart Apps for Kids Key Features: • Customize your own space ship • Explore the stars! • Meet and play with cute aliens! • Collect plants to feed to aliens for tons of different reactions! • Dozens of activities to discover-repair space ships, take care of your astronauts, and more! • Play in zero gravity with Dr. Panda • No third party ads or in app purchases Privacy Policy As a designer of kids’ games, we understand how important privacy is in this modern, digital world. You can read our privacy policy here: http://www.drpanda.com/privacy About Dr. Panda Dr. Panda is a developer of games for kids. We develop games with educational values that help kids learn about the world. All of our games are safe and do not contain inappropriate content. If you’d like to know more about us and how we design games for kids, visit our website www.drpanda.com/about. If you have any questions, feel free to send us an email at [email protected] or contact us on Facebook (www.facebook.com/drpandagames) or Twitter (www.twitter.com/drpandagames) or Instagram (www.instagram.com/drpandagames).
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 Native
Expo
Supabase
Zustand
React Navigation
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.
