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.
Simple Server is a small web server in your pocket.
$3.99 · 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.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Simple Server: HTTP Server: 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.
Affiliate link: CloneChart may earn a commission at no extra cost
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 customization options for server settings.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Connection stability issues reported by some users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be confusing for beginners.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No option to schedule server restarts.
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.
Simple Server is a small web server in your pocket. - Share your folders/files from your iPhone/iPad to other devices in the same local network. - Browse your shared folders and files via browsers easily. - Manage your folders/files on your iPhone/iPad via browsers. - Set a username/password for sharing/managing files. - Support Access Logs displaying HTTP method, URL, remote IP address, and access time of requests and responses. - On iPad, you can preview your static HTML files in Safari with Split View while the web server runs on the same iPad. Two steps to share your folder: 1. In the app, tap "Select folder" and select a folder to be shared. You can choose a folder on your device or iCloud. 2. Tap the "Start Server" button. It's done! Then, connect to the address in a browser on any device in the same network. (e.g., A device that uses the same WiFi router.) Also, you can allow remote users can manage folders and files if you want. Caution: - Simple HTTP Server should be running in the foreground. It cannot be run in the background. If you change to another app or turn off the screen, the web server will stop. - On iPad, you can browse files/folders via Safari with running the web server on the same device, thanks to multitasking. - However, if you switch to another app on your iPhone, the web server will stop. The server status will be automatically recovered when you return to the app. On iPhone, browsing files from other devices is only meaningful. - It works only in a local WiFi network or local wired network. You cannot connect to the web server via a cellular network.
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.