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
Creature Garden by Tinybop
Create wonderful, incredible, and fantastical creatures
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
126 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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Combine features and design from your favorite apps.
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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 included15 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 Creature Garden by Tinybop: 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
Introduce more diverse creatures and allow users to unlock new ones.
Assumption to check: Limited creature variety
Validate with people who use this workflow before building.
Hypothesis 2
Add a feature for users to visit each other's gardens.
Assumption to check: No multiplayer features
Validate with people who use this workflow before building.
Hypothesis 3
Regularly update with new tips and seasonal creatures.
Assumption to check: Static content
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate gamification elements like achievements and daily challenges.
Assumption to check: User engagement drops after initial use
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
Create wonderful, incredible, and fantastical creatures. Give them hooves and horns, wings and beaks, or paws and claws. Fun for creative, curious, and kind kids! Play with your creatures in a wild garden of your own creation. Cross two creatures to see what new breeds you can make. Schools around the world use Creature Garden as a writing prompt to spark young imaginations! The Creature Garden is No. 6 in Tinybop's Digital Toys series which let kids create their own worlds. Each Digital Toys app is an open-ended construction kit for kids to build, test, and play. Kids develop creative-thinking, problem-solving, and storytelling skills. FEATURES + Build thousands of different creatures from 100+ parts. + Test your creatures to see if they will (or won’t!) walk, swim, and fly. + Save and organize all your creatures in a curiosity cabinet. + Create a garden for your creatures to live in. + Play with, feed, and groom your creatures. + Creatures eat, sleep, and poop! + Cross your creatures to create new breeds. + Race your creatures. See which is the fastest. + Make races harder with obstacles. + Keep track of your creatures’ best statistics. + Easy-to-use, safe, and kid-friendly design. + Multi-user system: each child can create and save their own robots. + Entertaining for kids and adults alike. + No in-app purchases or 3rd party advertising. Play in peace! + Original artwork by Natasha Durley. + Original sound design. Privacy Policy We take your and your child’s privacy seriously. We do not collect or share personal information about your child. We do not allow any third-party advertising. If the camera, microphone, and other services are used in an app, your information is not collected or distributed outside of the app. Read our complete privacy policy at tinybop.com. About Tinybop is a Brooklyn-based studio of designers, engineers, and artists. We make toys for tomorrow. We’re all over the internet. Visit us: www.tinybop.com Follow us: twitter.com/tinybop Like us: facebook.com/tinybop See us: instagram.com/tinybop We love hearing your stories! Reach out: [email protected]. Psst! It's not Tiny Bop, or Tiny Bob, or Tiny Pop. It's Tinybop.
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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
Redux
React Navigation
Firebase
react-query
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.
