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.
Importantly! If you want only the iOS version, download the Sync Folders.
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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 Sync Folders Pro: map the core Business 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 folder selection options, lacks cloud sync support
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No real-time sync notifications
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Complex user interface for new users
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.
Importantly! If you want only the iOS version, download the Sync Folders. • Synchronization and backup of local folders iOS, network folders Mac and PC, iCloud, external USB drives, memory cards, any other external media storage connected via Files.app • Bidirectional sync, one-way sync, mirror backup (In-App Purchases). • Powerful preview mode. Ability to change file operations before syncing. • Synchronization any number of pair folders at the same time (In-App Purchases). • With each re-backup, the app finds and copies only new files and new file versions, thereby reducing backup time and extending the life of your storage devices. • List of excluded subfolders, files, file extensions, filter for folders and files. Sync Folders Pro is an easy-to-use app for beginners, has the ability to fine-tune synchronization settings for the most exacting professionals. Do you have terabytes (TB) of data to sync? No problem! Sync Folders Pro has been optimized to work with extremely large number of files. Do you have questions? Please watch our helpful video tutorial on our website. FOR BEGINNERS - Select 2 folders to synchronize. - Select the synchronization mode, or use the default mode. You do not need to worry about other settings, they are set to the recommended. - Look at the preview table. - Click the "Sync current task" button and your folders will be synchronized! FOR PROFESSIONALS - 9 sync modes (In-App Purchases). - 6 file comparison modes allow to synchronize files on the storage devices with different file systems. - Sync files with all attributes (timestamps, tags). - Synchronization of subfolder attributes (timestamps, tags). - Ability to select what package types synchronize as files, and which as folders. - You can transform the app to the convenient file manager using powerful filters for files and folders. - Synchronization over the network. - Protection for unauthorized disconnect storage devices (folders) during synchronization. - Keeping the last/all versions of files to be deleted. Using this mode, you can always restore deleted files, even if folders have synchronized several times. - Ability to log events. You can filter events by type, task, status. Ability to export the event log to an external file.
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.