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
Little Critter Collection #2
Dive into 10 more exciting Little Critter interactive book apps that lovingly address all the major issues of growing up! Explore pictures, learn new vocabulary, and personalize each story with your own narration
$14.99 · In-app purchases
PRICE
$14.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
22 ratings · Top 15%
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 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 Little Critter Collection #2: map the core Books 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
Enhance interaction with more engaging elements like mini-games.
Assumption to check: Limited interactivity in stories
Validate with people who use this workflow before building.
Hypothesis 2
Introduce a freemium model with some free stories.
Assumption to check: High price point for entry
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize their reading experience (e.g., text size, background color).
Assumption to check: No user customization options
Validate with people who use this workflow before building.
Hypothesis 4
Ensure high-quality audio recordings for all stories.
Assumption to check: Inconsistent audio quality
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
Dive into 10 more exciting Little Critter interactive book apps that lovingly address all the major issues of growing up! Explore pictures, learn new vocabulary, and personalize each story with your own narration. Children will easily identify with Little Critter's adventures as he maneuvers through childhood one day at a time. Explore the Story: - ENCOURAGE literacy skills with highlighted narration - LEARN new vocabulary with tappable words and pictures - RECORD your own narration & share it with others - SELECT a scene with easy-to-use navigation - KEEP kids in the story with parental controls Play a find-the-creature mini game! Can you can spot every creature throughout the story? Tap to tally them up! Designed for children ages 2-5 -Just Go to Bed: Playful and energetic Little Critter resists his father's efforts to get him ready for bed. -Just a Mess: The search for his baseball mitt leads Little Critter to the doorway of his bedroom which is "just a mess." -Just Going to the Dentist: Good natured Little Critter reassures young readers that going to the dentist is not that bad after all. -Just Grandpa and Me: Little Critter and his Grandpa go on a shopping expedition for a new suit. -Just Lost: It's quite an adventure at the mall when Little Critter gets separated from his mom. -Just Me and My Little Brother: Little Critter is looking forward to all the fun things he can do with his little brother. -Just Me and My Puppy: Little Critter happily feeds, walks, trains and loves his new friend. -Just Shopping With Mom: Shopping with his family turns into an eventful day for Little Critter. -What a Bad Dream: Little Critter dreams that a magic potion turns him into a scary, disagreeable monster that no one wants to be around. -When I Grow Up: Little Critter's sister imagines all the wonderful things she'll do when she grows up. ------------------------------------------------------------------------ We'd Love To Hear From You! - Please share your thoughts in a review! Your experience matters to us. - Need tech support? Contact us at [email protected] - Say hello to us on FB! facebook.com/oceanhousemedia Official Mercer Mayer licensed app: www.littlecritter.com
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
React Navigation
Axios
Redux
Firebase
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.
