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.
App Overview
Textastic Code Editor
Textastic is a comprehensive and versatile text and code editor for iPad and iPhone
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
2,573 ratings · Top 15%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Textastic Code Editor: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Textastic is a comprehensive and versatile text and code editor for iPad and iPhone. It supports syntax highlighting for more than 80 programming and markup languages. Connect to SFTP, FTP, and WebDAV servers or to your Dropbox account. Use the built-in SSH terminal to work directly on your server. Features: - Syntax highlighting for more than 80 languages, including HTML, JavaScript, CSS, C++, Swift, Objective-C, Rust, XML, Markdown, PHP, Perl, Python, Ruby, Lua, YAML, JSON, SQL, shell scripts, and many more (full list available on the website) - Compatible with Sublime Text 3 and TextMate 1 syntax definitions and themes - Code completion for HTML, CSS, JavaScript, C, Objective-C, and PHP - SFTP (SSH), FTP, FTPS (FTP over SSL), WebDAV, and Dropbox clients - SSH terminal connections - Code formatter for HTML, CSS, JavaScript, and JSON - Git repositories from the Git client app Working Copy can be opened as external folders in Textastic - Emmet support - JavaScript console - iCloud Drive file synchronization - WebDAV server for easy file transfer between Textastic and your Mac or PC over Wi-Fi - Symbol list for quick navigation within a file - Full support for external keyboards, trackpads, and mice - Configurable keyboard shortcuts - Additional keys above the virtual keyboard for frequently used programming characters - Cursor navigation wheel for easy text selection - Move the cursor using swipe gestures - Split View and Slide Over multitasking on iPad - Open multiple files in tabs - Multiple windows on iPadOS - Dark Mode support - Support for common text encodings such as UTF-8, UTF-16, and ISO-8859-1 - Support for different tab widths and soft tabs (spaces instead of tabs) - Custom fonts - Find and Replace, including regular expression search - Find in multiple files - File information such as character and word counts - Local and remote web preview for HTML and Markdown files Pricing: Textastic requires a monthly or yearly subscription or a one-time purchase. Each subscription includes a 7-day free trial with full access to all features. Privacy Policy: https://www.textasticapp.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Expand to include more programming languages and customization options.
Assumption to check: Limited language support for syntax highlighting
Validate with people who use this workflow before building.
Hypothesis 2
Simplify file navigation and enable better categorization.
Assumption to check: File management can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Optimize code editor to handle larger files more efficiently.
Assumption to check: Performance issues with larger files
Validate with people who use this workflow before building.
Hypothesis 4
Introduce real-time collaboration for multiple users editing.
Assumption to check: Lack of collaboration features
Validate with people who use this workflow before building.
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
zustand
react-navigation
react-native-syntax-highlighter
expo-file-system
BUILD KIT DIFFICULTY
Advanced
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.
