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.
Fuuse is a lightweight image synthesis tool that helps you create creative group photos
Free · 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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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 Fuuse: 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 for categorizing cosmetics
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Reminders can be missed due to lack of notifications
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No cloud sync for data backup
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can feel cluttered with many items
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.
Fuuse is a lightweight image synthesis tool that helps you create creative group photos. Upload two portrait images, and our AI model will blend them into natural-looking group photos. You can add a background image from your gallery, camera, or choose from built-in templates to create personalized compositions. Key Features Image Synthesis Upload two portrait images from your photo library or take new photos with your camera. The app uses an AI model to fuse the portraits into natural group photos. Optionally add a background image from your gallery, camera, or built-in templates to enhance your compositions. Gallery Your synthesized works are saved locally. Browse them in a grid layout, tap to view in full screen, and manage your collection. You can like favorites, delete items, and share or save creations directly from the app. Pricing Fuuse offers coins for individual synthesis and subscription plans for unlimited synthesis. Subscribers enjoy unlimited synthesis, no watermark, and priority support. All purchases are processed through Apple's in-app purchase system. Privacy Fuuse does not collect, store, or use your face data or any personal biometric information. Images are used only to perform the synthesis you request and are not retained for identification, tracking, or marketing. Synthesized works are stored on your device. The app requires photo library and camera access to let you choose and capture images; you can manage these permissions in your device settings. How It Works 1. Open the app and go to the synthesis screen 2. Upload or capture two portrait images 3. Optionally select a background from your gallery, camera, or built-in templates 4. Tap synthesize to generate your group photo 5. View, save, share, or manage your creation in the gallery Fuuse is designed for users who want to create group photos, combine portraits with different backgrounds, or try creative image composition. No professional editing experience is required. For support or feedback, use the settings section to find contact details and links to our privacy policy, terms of service, and subscription terms. Subscription Plans: Monthly Subscription, Price: $6.99 / 1 month, Six Month Subscription, Price: $35.99 / 6 months, Yearly Subscription, Price: $59.99 / 1 year User Agreement https://fuusese.com/contract/UserAgreement.html Privacy Policy https://fuusese.com/contract/PrivacyPolicy.html Subscription Terms https://fuusese.com/contract/SubscriptionAgreement.html
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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.