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.
Discover the future of music creation with Donna – where AI meets artistry to empower anyone to become a music maker
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 Donna AI Song & Music Maker: map the core Music 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 song customization options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription model can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent AI song generation quality
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No social sharing features
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.
Discover the future of music creation with Donna – where AI meets artistry to empower anyone to become a music maker. Whether you’re stepping into the world of music for the first time or you’re a pro musician, Donna brings your musical visions to life, effortlessly. Why Donna? Innovative AI Music Creation: At the heart of Donna lies a revolutionary AI that understands the intricacies of music genres, instruments, and vocals. It crafts entire songs in seconds, complete with lyrics and realistic sound, based on the vibe you describe. Genre-Defying Compositions: Imagine melding the high energy of Rap with the majestic sound of pop vocals. Donna breaks the boundaries of traditional music genres, offering limitless creative possibilities. Accessible to All: You don’t need to be a music theory expert or a proficient instrumentalist. If you have an idea, Donna has the tools to bring it to life. Music creation is now accessible to everyone, fostering a community of creators who share a passion for innovation and artistry. Inspiration at Your Fingertips: Donna doesn’t just save time; it’s a muse that provides unexpected musical starting points. Find inspiration in the AI’s creations and refine them to make something uniquely yours. Key Features: - Instant Song Creation: Describe the vibe you’re going for and let Donna handle the rest. From composing to producing, experience the magic of having an AI-powered music studio in your pocket. - Wide Range of Genres: With an expansive understanding of musical styles, Donna allows you to explore and combine genres in ways you’ve never imagined. - Realistic Vocals and Instruments: Donna’s advanced AI generates songs complete with lyrics sung in a voice that’ll make you do a double-take and instruments that sound like the real deal. - Extend Your Tracks: Effortlessly increase the length of your song to better match your creative vision and ensure it meets your desired duration. - STEM Separation: Effortlessly separate your tracks into individual stems, allowing you to isolate vocals, instruments, and beats for further mixing and editing. - User-Friendly Interface: We believe in keeping complexities under the hood. Donna offers a sleek, intuitive interface that makes music creation enjoyable and straightforward. Whether you’re looking to create your next big hit, experiment with different sounds, or simply have fun making music, Donna is here to support your creative ambitions. Dive into a world of endless musical possibilities, and let your imagination lead the way. To create music, you’ll need a Donna pro subscription. Pro subscription opens the door to amazing musical possibilities, allowing you to fully immerse yourself in your creative journey. Extend, STEM Separation, and Proof of Creation features are not included in the subscription. The subscription covers music creation only. You can purchase the Extend, STEM Separation, and Proof of Creation features separately Information about the auto-renewable nature of the subscriptions Subscriptions will automatically renew unless cancelled at least one day before the renewal date within 24 hours before the end of the current period. Payment will be charged to your Apple ID account at the confirmation of purchase. If you subscribe before a free trial ends, the remainder of the trial period will be forfeited. You can manage and cancel your subscription by going to your account settings in the App Store Privacy Policy: https://www.mobiversite.com/privacypolicy Terms & Conditions: https://www.mobiversite.com/terms EULA: https://www.mobiversite.com/eula
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.