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.
Printa is a nifty iOS app for printing photos and PDF files with compact Bluetooth thermal printers, including many mini thermal printers, cat printers, and affordable portable models.
$0.99
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.
Your first Build Kit is free with a verified email.
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 Printa: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Printa is a nifty iOS app for printing photos and PDF files with compact Bluetooth thermal printers, including many mini thermal printers, cat printers, and affordable portable models. Import a photo or PDF, adjust the print options, and print directly from the app. You can also print from other apps using the iOS share menu, thanks to Printa’s integrated share extension. Printa is made for straightforward printing with practical controls. The app can automatically reconnect to your printer and includes useful options to tune the final result before printing. Features: • Print photos and PDF files • Import files directly into the app • Print from other apps using the share extension • Auto reconnect to previously used printers • Support for compact bluetooth thermal printers • Support for cat-style thermal printers • Multiple dithering styles • Adjustable threshold • Brightness and contrast controls • Scaling options • Additional print settings for better output • Simple interface focused on direct printing Supported printer families include: • M series: M01, M08F, M832, M836 • P series: P1, P2, P3, P3S, P4, P5, P6, P7, P7H, P10, P100, P100S • MP series: MP100/100S, MP200/200S, MP220/220S, MP300/300S • LP series: LP100, LP100S, LP220, LP220S • X series: X1, X2, X2H, X5, X6, X7, X8, X9, X16, X100, X101H, X102, X103H • D series: D1, D100, D2 • T series: T02, T02E • Q series: Q302, Q580 • K06 family • V5X family • Cat printers Printa gives you a direct way to print from your iPhone to small thermal printers, with the options needed to make photos, documents, and quick prints look better on black-and-white thermal paper.
Written user reviews are not shown here. Check current App Store reviews >
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: No offline mode
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Sync issues
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Feature bloat
Validate with people who use this workflow before building.
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.