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.
A product that has reached #1 on the front page of Hacker News and topped the paid tools chart across all European countries, while ranking #2 in the US on the same day.
$4.99 · 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 Queryable - Photo Search App: map the core Photo & Video 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 difficult to locate specific images quickly.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited editing features for saved images.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance with large image collections.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription structure can be confusing.
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.
A product that has reached #1 on the front page of Hacker News and topped the paid tools chart across all European countries, while ranking #2 in the US on the same day. Queryable is an open-source, offline photo album search tool unlike anything you've used before. Search your photos with natural descriptions like "two people by the sea," "a blonde woman holding a glass of red wine," "a girl in red on the lawn," or even emotional moments like "We fell in love." Queryable understands longer, more human descriptions instead of only simple tags. New in this version: search in your own language. Non-English queries are translated on your device before searching, so your photos and your words never leave your phone. You can also search by photo, filter results by time, batch-select and share, clean up duplicates more precisely, and view Live Photos and videos more reliably. Pay once and use it forever. Queryable works completely offline after download, protecting the privacy of your photo library. FAQ: 1. What languages can I search in? You can search in your own language. Queryable translates your query on device before searching, while keeping the accuracy of the English search model. The app interface is currently localized in English, French, German, Spanish, and Italian. 2. How is my photo privacy protected? Queryable works completely offline. You can even disable the app's network permissions if you have privacy concerns. 3. How do I use it? After downloading, build an index for your photos. This takes a few minutes depending on your library and device. On an iPhone 12 mini, Queryable processes about 2,000 photos per minute, and indexing is only required once. Once indexing is complete, you can search instantly. When you add new photos, you can update the index at any time. Contact: - Email: [email protected] - Twitter: @immazzystar - GitHub: https://github.com/mazzzystar/Queryable Preview page created with https://screenshots.pro/.
Written user reviews are not shown here. Check current App Store reviews >
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.