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.
Designed for Real Skill Growth
$1.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Time to Multiply: 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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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
Assumption to check: Users often find educational apps lack personalization.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Too many ads in free versions.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited content variety can lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Tracking progress can be unclear.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Designed for Real Skill Growth Your child isn’t just tapping answers — they’re actively learning. - Practice specific multiplication tables (0–12) or mix them all - Choose a timed challenge or practice at your own pace - Set a fixed number of problems or go unlimited - See clear results at the end of every session Parents and teachers can customize practice using flexible settings for numbers, time, and problem limits. Timed Challenges That Build Fluency - Speed matters when mastering multiplication. - Kids can train with countdown modes that develop quick recall and mental math agility. - The built-in countdown and timer system automatically ends the game and shows results when time runs out. This helps children: - Improve recall speed - Build test-taking confidence - Stay focused and motivated Instant Results & Progress Feedback After every session, your child sees: - Number correct - Number incorrect - Total problems completed - Percentage score Clear performance tracking reinforces progress and highlights areas for improvement. - Visual Learning with Multiplication Grids - For children who learn best visually, every problem can display a dynamic multiplication grid. - Rows × columns are shown using interactive spheres, helping kids see how multiplication works. - This makes abstract math concepts concrete — perfect for visual and hands-on learners. - Game-Like Experience That Keeps Kids Engaged Multiplication practice feels like a game, not a worksheet. - Animated number “slot scroll” effects - Randomized answer placement to prevent memorizing button positions - Fun celebration effects for correct answers - Smooth animated countdown before each round - Optional background music toggle - Subtle floating visual effects for a dynamic feel Kids stay motivated. Parents see real progress. Built for Parents Who Want Results Time to Multiply is: - Focused — No ads, no distractions - Customizable — Practice exactly what your child needs - Effective — Encourages repetition and mastery - Kid-friendly — Clear design, simple interface - Confidence-building — Immediate feedback and success reinforcement Perfect For: - Elementary students learning multiplication tables - Test prep and timed fluency practice - Home school reinforcement - Extra math practice at home - Summer skill retention Help your child move from counting to confident recall. Download Time to Multiply today and turn practice into progress.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.