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.
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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 Everything Machine 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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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 compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional app crashes during heavy use
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase confusion with multiple tiers
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can feel cluttered
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.
Invent and build anything you can imagine! A simple drag-and-drop visual coding language lets you connect and control your device’s camera, sensors, lights, sound, and more. Make a light, a stop-motion camera, a kaleidoscope, a voice disguiser, or anything else you can think of! *** App Store Editors’ Choice *** *** Children’s Technology Review Editor’s Choice *** Download the free Everything Machine Manual for instructions to start building quickly with a picture-swirler or cookie-thief catcher. The manual also explains inputs, outputs, logic gates, routers, and more. Learn the basics of coding and circuitry. Create on your own or play with a friend and share your inventions. If you make something really great, tap the share button and email it to us at [email protected]. We love seeing what you make! The Everything Machine is No. 2 of Tinybop’s Digital Toys. Digital Toys are open-ended construction kits that let kids build, test, and play with anything they can imagine. Kids develop creative-thinking, problem-solving, and storytelling skills. No. 1 is The Robot Factory, the iPad App of the Year and a Parents’ Choice Gold Award winner. Features: + Make any machine you can imagine! + Create with your device’s built-in tools and sensors: the camera, microphone, speaker, screen, gyroscope, light, and more. + Drag and drop dozens of parts together easily. + Use logic gates and routers for more complex machines. + Kids can play together (or with grownups!): use transmitters and receivers to connect to other iPads, iPhones, iPod touches, or Apple Watches. + Example machines help you get started quickly. + Download the free Everything Machine Manual for more details on parts and their functions, in the app or at tinybop.com. + Save every machine you create. Use it every day! + Parts have labels in 40+ languages. + Original artwork and sound design. + Intuitive, safe, and kid-friendly design. + Multi-user system: each child can create and save their own machines. + Entertaining for the whole family — play and learn together! 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 on our website. 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 Psst! It's not Tiny Bop, or Tiny Bob, or Tiny Pop. It's Tinybop! :)
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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.