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.
*** As seen on Nick Jr
$2.99 · 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 Hey Duggee: The Exploring App: map the core Entertainment 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 interactive content
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user customization
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Minimal badges for engagement
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.
*** As seen on Nick Jr. *** Time to go exploring, Squirrels! Introducing the latest app featuring Hey Duggee! Safe, ad-free fun for your little ones. Go on an adventure with Duggee and the Squirrels as they set out to earn seven brand new badges. Completing each activity earns the Squirrel a badge. With 5 Squirrels playing for 7 badges each, that’s a whole lot of Duggee Hugs! Key Features: • Seven fun activities with a variety of gameplay styles • Improve reactions and matching skills as you set up a tent • Meet colourful characters as you build your very own trainset • Develop fine motor control skills as you dig for fossils • Practice observation as you go bird watching • Learn about the planets as you fly a rocket ship • Encourage your creativity as you design a treehouse • Create ghosts and pumpkins as you get spooky • Visit your gallery to see all of your wonderful adventures Games: The Birdwatching Badge Pick up your binoculars as you try to spot some of Duggee’s favourite birds. Watch out for the other wildlife though! Use the device’s motion controls to look around. The Fossil Badge Help the Squirrels dig for fossils as they find their very own dinosaurs. Is that a Tyrannosroly Rex?! Search the map and use shape-tracing skills to find the fossils. The Camping Badge Time to pitch the tent! Play through multiple stages putting up the Squirrels’ tent, before helping Duggee get them tucked up in bed with their favourite toys. The Train Badge All aboard! Time to play with Hennie as you put together a full-size train set. Remember to wave, as you drive the train past all your favourite Duggee characters. The Space Badge The Squirrels are blasting off into space. Use motion controls to steer your Rocket Ship through the cosmos, passing funny aliens and learning about the planets. The Treehouse Badge Duggee’s got his toolbox out. Help him build the Squirrels a bigger, better treehouse. Take pictures and watch it come to life as all their friends move in. The Spooky Badge Prepare yourself for some ghostly goings on! Cut out your own ghostly shape from Duggee's sheets before decorating it and carving a pumpkin. Then it's time to get spooky! Customer Care: If you experience any technical issues with this app please get in touch. Most issues can be easily fixed and we are happy to help. Contact us at [email protected] Privacy: This app will ask for permission to access the camera roll on your device. The camera roll is accessed in order to save pictures of the Spooky and Treehouse Badge activities on your device’s camera roll. When asked, you will be given an option of accepting or turning down permission. View our privacy policy here: https://www.bbcstudios.com/mobile-apps/ About Studio AKA STUDIO AKA is a multi-BAFTA winning & Oscar-nominated independent animation studio & production company based in London. They are known internationally for their idiosyncratic & innovative work expressed across an eclectic range of projects. www.studioaka.co.uk About Scary Beasties Scary Beasties is a BAFTA winning mobile and online games developer specialising in kids’ content, from pre-school through to the teen market. www.scarybeasties.com A Scary Beasties production for BBC Studios
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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.