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.
Era Year Lookup is an offline reference tool for reading classical texts, taking history notes, and organizing research
$0.29
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.
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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 Era Year Lookup Offline2026: 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 often find difficulty in finding specific years quickly.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited offline capabilities for detailed information.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user engagement features like sharing.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No user customization options for favorite years.
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.
Era Year Lookup is an offline reference tool for reading classical texts, taking history notes, and organizing research. It helps you quickly understand era names, sexagenary cycle years, dynasties, rulers, and Common Era dates mentioned in books. Key features: 1. Era name and CE lookup: Search by era name, ruler, dynasty, or CE year to find the corresponding year range. 2. Sexagenary year conversion: Convert between CE years and traditional cycle years to reduce manual table checking. 3. Dynasty timeline: Browse rulers, era names, and start and end years by dynasty for quick verification while reading. 4. Reading note cards: Save lookup results as local notes with book title, page number, and comments. 5. Ambiguous year reminders: Get prompts for era changes, overlapping years, and duplicate era names to reduce mistakes. 6. Local bookmarks and search: Save frequently used entries and keep all data offline. No login, no internet connection, and no personal data collection are required. It is designed for students, history readers, classical text enthusiasts, and writers organizing source material.
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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.
Not assessed in a Build Kit yet.
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.