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.
1Writer combines all the basic text editing features you would expect with all the advanced features you will ever need
$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 1Writer - Markdown Text Editor: 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 export options for documents
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of collaboration features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No cross-device sync
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic markdown support
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.
1Writer combines all the basic text editing features you would expect with all the advanced features you will ever need. Use 1Writer to write, research, revise, and share your ideas with maximum efficiency. - - - - - - - - - - "The only Dropbox- and Markdown-enabled text editor for iPhone that’s clicked with me has been 1Writer. It’s simple, looks great, and gets the job done." - TheSweetSetup.com "Really great app, really recommend it." - Federico Viticci, MacStories.net "The app interface is beautiful and distraction-free, with loads of other awesome features lurking beneath its simple exterior. It's now my go-to iPhone text editor." - Chris Gonzales, ToolsandToys.net "For users that want a great visual experience paired with great support for custom actions and third party apps, 1Writer is an excellent choice." - iMore.com "1Writer is the most powerful text editor available for iPhone." - Phillip Gruneich - - - - - - - - - - CREATE - Write :: generate and edit plain text or Markdown files. - Preview :: see the formatted results with Markdown syntax highlighting while you write and a full, rich-text preview when you're done. - Extended keyboard :: a convenient row of buttons for navigation, formatting, special characters (customizable--pick the characters you use the most). - Insert photo :: pick a photo or take a new one, and 1Writer will upload it to Dropbox and generate the Markdown-syntax to add it to your document--all in a single action! - Snippets :: TextExpander Touch support. - Custom URL actions :: insert a document template, encode a selection and replace the original text, look up synonyms and much more. - JavaScript :: create even more powerful custom actions using JavaScript—text manipulation, perform a find & replace, interact with the clipboard—the possibilities are endless. IMPORT - Sync with iCloud, Dropbox and WebDAV. - Share extension :: send text to 1Writer from other apps. In Safari, the extension uses the current URL, page title and selected text to create a new document. - Create, append, prepend, or replace text directly from other apps using the 1Writer URL scheme. EXPORT - CloudApp and Dropbox :: generate a link to share your document in plain text or PDF. - Evernote :: pick your notebook, add tags and turn a text selection or the entire document into a new, rich-text note. - Copy HTML :: put the formatted text for your document directly on the clipboard. - Custom actions :: open a web search, tweet a selection, save a series of items in a list and much more. PERSONALIZE - Support Dark Mode on iOS 13. - 2 dark themes for more comfortable reading and writing at night. - Choose from 20 different fonts. - Bookmark and sync the Dropbox/WebDAV folders you want to have quick access to the sub-folders and documents you need. - Use a passcode or Touch ID/Face ID to protect the app from unauthorized users. RESEARCH - In-app web browser :: research, look up information without having to leave the app. - Bookmarks :: create and access your favorite websites. - Save the current text selection to the clipboard in Markdown syntax. - 1Password support :: login to all your accounts using the 1Password extension. EVEN MORE GREAT FEATURES - Drag and drop. - Open in Place. - Multiple windows on iOS 13. - MultiMarkdown. - Search documents from Spotlight. - Find & replace within document. - Photo and PDF preview. - Today widget :: access your recent documents from the Notification Center or create a new document in one tap. - Checklist support :: create a list of things to do or topics to research, and easily check them off. - Full-text search and hashtag support :: search within a folder to find the document you need, and view related documents that have the same tag.
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.