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
Splash Math - Games by Grade
splash math – fun learning games by grade (k–5)
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
4,325 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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.
JavaScript is required to complete mailbox verification.
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 Splash Math - Games by Grade: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Expand topics and add more interactive content for all grades.
Assumption to check: Limited math topics for younger grades.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the paywall and provide clearer explanations of benefits.
Assumption to check: In-app purchases can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Implement better categorization and personalized game suggestions.
Assumption to check: Can be overwhelming with too many games.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance progress tracking features with more specific feedback and achievements.
Assumption to check: Progress tracking is not detailed enough.
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
splash math – fun learning games by grade (k–5) award-winning learning app trusted by 60m kids and 1.6m teachers! splash math turns practice into play — helping kids in kindergarten to grade 5 build strong math skills, gain confidence, and actually enjoy learning. awards & recognition - winner of tabby award – best educational app - featured as “#1 education app” by apple - trusted by 1.6m teachers and loved by 60m learners worldwidesplash math turns practice into play — helping kids in kindergarten to grade 5 build strong math skills, gain confidence, and actually enjoy learning. why families love splash math “a lifesaver for my daughter — she went from struggling to excelling in weeks!” – parent of a 3rd grader “my kids think they’re playing games, but they’re learning every minute.” – parent of a 1st grader “perfect for independent learning — my son explores at his own pace.” – parent of a 4th grader what your child will learn → kindergarten - counting, comparing numbers, and basic addition/subtraction - understanding ones and tens, positional words, and coins → grade 1 - addition/subtraction strategies and word problems - time, money, and simple measurement concepts → grade 2 - skip-counting, arrays, and operations within 100 - estimation, reading graphs, and understanding a.m. vs p.m. → grade 3 - place value, fractions, multiplication, and division - area, perimeter, time, and money mastery → grade 4 - multi-digit operations and number theory - fractions, decimals, geometry, and advanced problem-solving → grade 5 - fractions, decimals, and volume calculations - unit conversions and graphing on coordinate planes why kids love it - play-based learning keeps kids excited and motivated - adaptive practice adjusts to each child’s skill level - rewards and streaks make learning addictive (in a good way!) - safe, ad-free experience parents can trust subscription & free trial try it free! get full access during your free trial, then choose a flexible plan that fits your family. enjoy unlimited learning games, lessons, and rewards with one subscription. need help? we’re here for you → https://support.splashlearn.com/hc/en-us privacy & terms your child’s safety comes first. - https://www.splashlearn.com/privacy - https://www.splashlearn.com/terms-of-use
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Axios
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.
