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 Llwybrau'r Wyddfa: map the core Navigation 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 offline capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Insufficient trail information
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface clutter
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.
*** SCROLL DOWN FOR ENGLISH *** Mae’r Wyddfa yn fynydd eiconig sy’n adnabyddus dros y byd i gyd. Mae’n gartref i gymuned fywiog, egnïol, ac i fusnesau a mannau gwaith arloesol yn ogystal â chlytwaith o ffermydd mynydd. Mae'n ased cenedlaethol a hwn yw mynydd mwyaf poblogaidd y Deyrnas Unedig o ran ymwelwyr. Mae'n denu pobl o bob cwr o Gymru, y DU, ac o bob rhan o'r byd. Dyluniwyd yr ap gan Awdurdod Parc Cenedlaethol Eryri a phartneriaid gweithgar sy’n cynnwys cynrychiolwyr o sefydliadau sydd â dyletswydd ymarferol o reoli’r mynydd ar lawr gwlad. Mae’r gwaith yn amrywio o reolaeth cadwraeth a llwybrau i dwristiaeth, ffermio ac achub mynydd. Mae’r ap yn hawdd i’w ddefnyddio, yn gweithio gyda GPS ac yn cynnwys mapiau manwl sy’n dilyn eich taith wrth i chi gerdded ar unrhyw un o’r 6 prif lwybr i’r copa. Mae hyn yn gweithio all-lein, sy’n golygu nad oes angen cyflenwad i’r we neu signal ffôn tra’n ei ddefnyddio ar y mynydd. Mae pob map yn cynnwys cyfuchliniau fel y gallwch gadw golwg ar ddarnau anodd wrth i chi gerdded. Fe fydd yr ap yn eich helpu i gynllunio ymlaen llaw cyn eich ymweliad ac yn cynnwys cyngor pwysig fydd yn eich galluogi i’n cynorthwyo i barchu, gofalu, a gwarchod y mynydd, yr amgylchedd o’i amgylch, a’r cymunedau lleol. Yn cynnwys data AO © Hawlfraint y goron a hawl basdata 2020. Datblygwyd yr ap gan Tiny Mobile Limited ar gyfer Partneriaeth Yr Wyddfa. Cysylltwch â [email protected] os oes diddordeb gennych mewn datblygu ap cerdded. Yr Wyddfa (pronounced uhr-with-va) is a globally renowned, iconic mountain and home to vibrant, energetic communities and a mosaic of upland hill farms. It is a national asset, the most visited mountain in the UK, attracting people from across Wales, the UK and around the world. This app is designed by the Eryri National Park Authority (Snowdonia) together with partners who are responsible for the on-the-ground management of the mountain. The work ranges from conservation and path management to tourism, farming and mountain rescue. Our simple to use GPS-enabled app covers the 6 main paths to the summit of Yr Wyddfa with detailed route maps that tracks your progress as you ascend. This works offline, meaning no internet or phone signal is required when using the app on the mountain. Each map also includes contour information so you can look out for hazardous sections as you climb. This app will also help you plan ahead before your visit and includes important advice which will allow you to help us respect, care, and protect this incredible mountain, the surrounding environment and local communities. Contains OS data © Crown copyright and database right 2023. This walking app was developed for Partneriaeth Yr Wyddfa by Tinymobile Limited. Email Paul on [email protected] if you would like to discuss walking app development.
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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.