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.
Warning: Mature, dark, unhappy ending for some
$12.99 · 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 Lenguard: map the core Books 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 find it hard to stay motivated without community engagement.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited language options may frustrate users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Content can become repetitive or stale.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Navigation can be confusing with many lesson categories.
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.
Warning: Mature, dark, unhappy ending for some By the creators of Timecrest—Apple’s Best of 2015 and NYTimes recommended. * * * A new adventure awaits. I have visited so many worlds and I want to show you them all. Though I’m afraid this one isn’t a vacation destination. A part of me doesn’t want to expose you to this particular world, even though you’re strong. While this place has tons of new and beautiful sights to see, I've found it is also dreary and horrifying at times. Not to mention, it’s far from the world you know and what you’re used to, so I wouldn’t mind it if you skipped out. But for selfish reasons, I’m glad you’re here. I do need your help with Lenguard and I’m beyond curious to see what you can do. Your powers are perhaps the only thing that will make a difference. So if you do choose to visit this place, it would be…a personal favor to me. :) If you don’t know me yet, just know that I believe in you. Of course, things still may not go our way even with your abilities. Though, since it’s you, I always have hope that fate can be changed. -C * * * Coffee Intensity rating: Dark Roast More than a book. Be a part of this epic fantasy. The universe works in mysterious ways, and it has brought you here for a reason. Lenguard is a horror fantasy where you have become a magical entity known as an Eon with the ability to bless people with wondrous, coveted gifts in this cold, rainy world ruled by vicious, titanic monsters known as Arks. You will meet four strangers who appear to be randomly thrown together. Will one become your favorite or will you find them unworthy of your blessings once you get to know them? That’s not all. Nothing good comes for free, not in Lenguard. In exchange for these gifts, they will be tasked with the goal of reaching the White Veil. In a world where few live beyond 30, those you have blessed hope that the Veil will be their ticket out of this cruel world. But does something sinister await? Everything is not as random as it may seem. What is the White Veil? Who is the enigmatic “C” character that seems to imply he knows you? As you read, your true role and those you have blessed will be revealed. Who will you bless? • Lenguard Valdor — 14, Male, Natural; wind-based magic • Victor Randel — 41, Male, Natural; illusion-based magic • Rela — 13, Female, Natural; water-based magic • Soonareleiyou Endelmyionne — Age unknown, Female, Eonnite; light- and dark-based magic Make your choice, and curl into your reading chair and see how the rest of the story unfolds. What moments and memories will you give to light up their lives in a dark world? But if you're going to stay for a happy ending, just cover your eyes and your ears before then. In this world, it's best not to have— * * * Lenguard is a standalone story set in the Timecrest Universe. Enjoy it on its own, or try Timecrest for a deeper look at the lore that binds these stories together.
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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.