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.
Fun kids' yoga app YOU get to customize! Easily choose the poses you want in your yoga video
$9.99 · 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 Sing Song Yoga for Kids: map the core Health & Fitness 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: Limited content variety for kids
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No progress tracking
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High price point for initial purchase
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.
Fun kids' yoga app YOU get to customize! Easily choose the poses you want in your yoga video. Or, if you prefer, you can choose a playlist (SSY Sequence) already done for you — such as Bedtime Sequence, Brain Break Sequence, I Can Focus Sequence, etc. The Sing Song Yoga® App is our beautifully produced video program leading to powerful results for families, schools, after-school, and health programs. Sing Song Yoga® is a kids’ musical yoga program in which song lyrics instruct children on how to get into the poses. The music is fun and can hold a child's focus for longer periods of time to experience yoga's more in-depth benefits. Features: • Create your own yoga videos choosing from 48 poses or... • Choose from 38 pre-programmed (and fully customizable) Sing Song Yoga® Sequences such as Calming, Test Prep, or Runner’s Sequence • Song lyrics instruct kids on how to get into the poses • Poses are color-coded to indicate the effects on the body: calming, energizing, or neutral • Seamlessly stitch together your own custom yoga video with your selected poses or sequence • Customize your ideal length of the sequence with the Total Sequence Time display • Change the speed/length of the transition slides to accommodate different users (transitions range from 1 to 30 seconds) • Save custom sequences with personalized names such as “Sam’s Bedtime Sequence” or “Ms. Smith’s 3rd-grade Calming Sequence” • Perfect for families, schools, homeschooling, after-school, and health programs (such as rehabilitation, special education, or health and fitness for kids) • Guidelines video with the Sing Song Yoga® Kids • Retina Display supported • AirPlay-enabled • For use on the iPad, iPhone, and iPad Mini/Pro that support iOS 12.0 and above 2022 Top App of the Year by Creative Child Awards 2014 App of the Year by Creative Child Magazine Sing Song Yoga® Founder, and teacher in the app, Deb Weiss-Gelmi, BSEd, MA, CIYT, is a former school teacher, teacher educator, and Certified Iyengar Yoga Teacher. She and her team have produced these uniquely enchanting and effective yoga videos for kids, now available in this award-winning, internationally beloved Sing Song Yoga® iPad and iPhone App. Sing Song Yoga’s mission is to introduce yoga to kids, families, and schools, in a fun child-friendly, brain-friendly way in hopes that yoga will become a part of their lives for years to come. Therefore the benefits of yoga can be enjoyed throughout their lives! Find us at www.singsongyoga.com and on Facebook, Instagram, and Pinterest: @singsongyoga * Please consult with a physician before performing any poses or starting any exercise program. Sing Song Yoga is a registered trademark of Sing Song Yoga, LLC.
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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.