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.
Writing and compiling TeX files on the go
$14.99 · 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 TeX Writer - LaTeX On The Go: 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 LaTeX support compared to desktop versions
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complexity of LaTeX syntax can be daunting for beginners
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Performance issues with large documents
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No cloud sync options
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.
Writing and compiling TeX files on the go. No internet connection needed. FULL TeX/LaTeX SUPPORT - Supports both plain TeX and LaTeX, output PDF; - Supports XeLaTeX/LuaLaTeX (online compiling, requires PRO subscription); - Fast compiler optimized for iOS devices; - On-demand package auto downloader, including big packages like beamer; - Integrated BibTeX/MakeIndex; - Support multi-file project with comment "%!TEX root=main.tex" - Support compiler specification: "%!TEX program=xelatex" DESIGNED FOR PROFESSIONAL WRITERS - A text editor designed for LaTeX editing. With syntax highlighting, customizable assistant keyboard, powerful commands. - Outline view. Works for multi-file project. - Side by side PDF preview with auto reload after compilation. - View source: from PDF to TeX - TeX-aware spell checking (cmd -> spell) - Handy customizable assistant keyboard for inserting special characters. - Open .tex file from other applications - export & print pdf - Customizable UI appearance (via twilit.l) SHARING - Dropbox and OneDrive syncing, with file comparison and manual conflict resolution - WebDAV - PDF export/email PRO SUBSCRIPTION - Package download acceleration; - Automatic eps-to-pdf conversion with online service; - Payment will be charged to iTunes Account at confirmation of purchase • Length of subscription is 1 year - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication" - Privacy and Term of Use: https://apps.texwriter.net/about.html HOW TO GET HELP - Visit https://apps.texwriter.net for user guide, and templates for russian, chinese, japanese. - Email [email protected] to send bug report and feature requests. - Or directly talk to @litchiedev on Twitter.
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.