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.
iCab Mobile is a web browser for iOS
$2.99 · 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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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 iCab Mobile (Web Browser): map the core Utilities 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 customization options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Performance issues with heavy pages
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent bookmark management
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.
iCab Mobile is a web browser for iOS. iCab Mobile is customizable in almost all areas and can thus be made into your very own personal browser. PRIVACY: In private mode, no private data is saved permanently. Special private tabs increase privacy even further, with only a small loss of comfort. PROFILES/USER ACCOUNTS: Any number of profiles/user accounts can be created, with each profile having its own settings, bookmarks, etc. Profiles are suitable for an iPad that is used by the whole family, but also for users who want to separate professional and private surfing. TABS, WINDOWS: iCab Mobile can open any number of websites simultaneously in tabs. Tabs can be saved and organized in groups so that they can easily be loaded together again later. Tabs can be protected against accidental closing or overwriting. On the iPad, multiple app instances can be opened as windows (Stage Manager, Split View), even with multiple profiles simultaneously (since iOS 18). FILTERS: Filters can be used to block advertising, trackers, etc. Popular filter lists can be used directly (Easylist, AdBlock Plus, uBlock & compatible), but you can also define your own. USER INTERFACE: The user interface is freely configurable. Action, context and text selection menus, toolbars and gestures can be adapted to your own needs. ACCESSIBLE: The user interface is barrier-free and adapts to the system font size and is compatible with VoiceOver. BOOKMARKS: Bookmarks can be organized in folders. “Smart folders” create special collections based on self-defined rules (e.g. the latest bookmarks from the last 2 weeks). Colored labels allow further categorization. DOWNLOADS: Download any files and manage the files in the download manager, including unpacking/creating ZIP archives, exporting/importing, etc. SEARCH: The app offers a large list of search engines (self-expandable) that you can use to search directly on the web. It is also possible to search on the current page. WEBSITES: You can define what websites can and cannot do. Highlight important content with a highlighter, hide unwanted elements, allow buttons to be clicked automatically (e.g. for cookie messages). Control permissions for camera, microphone and sensor usage. Pro users can even inject JavaScript and CSS code into websites to customize them to their liking. EXPORT/IMPORT: All data can be exported/imported (for creating backups, data synchronization with other devices/apps) WIDGETS: Widgets allow you to control the App and open bookmarks directly from the home screen. Websites can also be displayed directly there. APPLE WATCH: Open websites directly on the Apple Watch (albeit limited). Remotely control iCab Mobile on the iPhone from the Watch. FURTHER FEATURES: - Quick starter - Configurable browser ID (UserAgent) - Full support for international domain names - Simple built-in RSS reader - Kiosk mode - a more limited version of the full-screen mode for kiosk systems. The app includes a store where you can give us a tip via InApp purchase to additionally support the further development of the app. The development of the app takes a lot of time and is a lot of work, which the low purchase price cannot cover. Te sources of income used by the big popular browsers, such as advertising, deals with search engines, tracking etc. are not an option for iCab Mobile. Tipping is completely voluntary and you won't miss out on any important features if you don't tip. However, users who tip will be given the option to change the app icon as a thank you.
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.