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
Code Runner App Compiler & IDE
Code Runner is the ultimate app for coding enthusiasts, programmers and developers
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.9
104 ratings · Top 50%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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.
JavaScript is required to complete mailbox verification.
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 Code Runner App Compiler & IDE: 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 language options to include more programming languages.
Assumption to check: Limited language support for code execution
Validate with people who use this workflow before building.
Hypothesis 2
Optimize the code execution engine for better performance.
Assumption to check: Performance issues with larger code snippets
Validate with people who use this workflow before building.
Hypothesis 3
Introduce real-time collaboration for coding projects.
Assumption to check: Lack of collaboration features
Validate with people who use this workflow before building.
Hypothesis 4
Provide better error messages and debugging capabilities.
Assumption to check: Inadequate error handling and debugging tools
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Code Runner is the ultimate app for coding enthusiasts, programmers and developers. Whether you want to learn a new programming language, practice your developer skills, or work on your programming projects, Code Runner has you covered. Code Runner is a versatile coding editor and compiler on your mobile device. This customizable editor has full programming code syntax highlighting. Code completion and editor actions like undo, redo, comment lines, and indent selection enhance your developer productivity. Built-in AI Assistant can refactor your code and check it for bugs. With this app, you can compile and execute code in more than 30 supported programming languages. Connect to GitHub and checkout, edit, run, and commit files from your repositories. Whether it's C, C++, Python, JavaScript, Swift, Java, or any of our supported programming languages, our powerful compiler ensures smooth execution and instant coding feedback. You can use this app to: Write and edit code with full programming syntax highlighting Compile the code Execute the code Get AI help with errors Refactor your code with AI Assistant Connect to GitHub Edit code and commit files to your GitHub repositories Run the code with a single tap and see the output instantly Test your coding ideas with various input and output options Share your coding work with others Elevate your coding skills This is a perfect app for coding on the go. Whether you want to test a coding idea, debug a problem, or showcase your programming work, this is the app for you. Connect to GitHub and turn this app into your cloud based IDE and compiler that supports more than 30 programming languages. Download it today and unleash your coding creativity! Complete list of supported programming languages: Assembly Bash Basic C C# C++ Clojure COBOL Common Lisp D Elixir Erlang F# Fortran Go Groovy Haskell Java JavaScript Kotlin Lua OCaml Octave Objective-C PHP Pascal Perl Prolog Python R Ruby Rust SQL Scala Swift TypeScript
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
@react-navigation/native
react-native-syntax-highlighter
@react-native-async-storage/async-storage
axios
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.
