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.
PaperTrail brings full TaskPaper editing to iOS and iPadOS
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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.
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Combine features and design from your favorite apps.
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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 PaperTrail: TaskPaper Client: map the core Productivity 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 task management features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of integrations with other productivity tools
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface may feel too simplistic for some users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline access or sync capabilities
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.
PaperTrail brings full TaskPaper editing to iOS and iPadOS. TaskPaper is plain text productivity—simple, fast, flexible. Projects, tasks, notes, and tags. Filter, search, and archive. All in plain text files you can sync via iCloud and edit in TaskPaper on your Mac. FEATURES • Full TaskPaper format support (.taskpaper, .todo, .txt, .md) • Open Bike (.bike) and OPML (.opml) outlines, with clear warnings when an import can't carry everything across • OPML and Bike-style export, so tags and done state round-trip back into Bike • Fold and focus into any subtree for distraction-free editing • Full query language with text, tag, boolean, and semantic search • Tag system with dates, progress tracking, and cost aggregation • Tag autocomplete ranked by how often you use each tag • Smart filters with edge-swipe gestures and an iPad side-by-side sidebar • Colour lines by priority, depth, or due date proximity • Natural date parsing and two-way iOS Reminders integration—import a Reminders list as a project • Quick capture: append tasks, notes, clipboard text, or web links to your most recent document • Planning shortcuts: Open in Today, Random Next Task, and Morning Brief • Shortcuts, Siri, Action Button, and Spotlight integration via App Intents • Find & update documents from Shortcuts: run queries, mark done, set tags, append tasks • Command palette for projects, searches, tags, and every editor command • iPadOS menu bar with Item, Tag, Outline, View, and Palette menus • Export documents as interactive HTML slide presentations or as OPML outlines • Built-in and custom document templates • 50+ keyboard shortcuts for power workflow • Native Swift app—tiny install size, built for speed • Dynamic Type, VoiceOver, and dark mode support
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.