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.
Clone your voice, turn English text into natural-sounding speech, create captioned videos, and transcribe audio or video—all from your iPhone
$6.99
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.
Your first Build Kit is free with a verified email.
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.
Loading build analysis and prompts…
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.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Clone your voice, turn English text into natural-sounding speech, create captioned videos, and transcribe audio or video—all from your iPhone. Vown brings voice cloning, text-to-speech, transcription, and creator-ready exports together in one private voice studio. Record or import a short voice sample, type your script, adjust the delivery, and export the result as audio or a vertical video. No cloud account or recurring generation plan is required. PAY ONCE. CREATE FOR LIFE. Vown is a one-time purchase. There are no subscriptions, generation credits, or ads. Your purchase includes lifetime use and all future feature updates. CLONE YOUR VOICE ON IPHONE • Record a new sample or import an existing audio file • Automatically select a clean section, then fine-tune it in 0.1-second steps • Create a reusable voice from a focused 5–10-second sample • Save multiple voice profiles for future projects CREATE SPEECH WITH MORE CONTROL • Turn up to 5,000 English characters into speech • Adjust speaking speed and pitch for the right delivery • Follow playback with word-by-word highlighting • Choose from 49 built-in voices for narration, social content, conversation, professional work, commercials, characters, and wellness • Preview voices and search or filter by category and gender TURN SPEECH INTO VIDEO • Export generated speech as a vertical 9:16 MP4 video • Add automatic timed captions and an animated waveform • Choose a gradient, your own photo, or a background video • Customize the avatar, display name, caption font, text size, and waveform size • Preview the finished video before sharing TRANSCRIBE AUDIO AND VIDEO PRIVATELY • Record live speech or import an audio or video file • Download the optional English transcription model once when you first need it • See download progress and retry if the connection is interrupted • After download, recordings are transcribed on-device without being uploaded • Save and search transcripts, or send imported speech directly into text-to-speech The optional transcription model is approximately 214 MB. A Wi-Fi connection is recommended for the first download. EXPORT FOR ANY WORKFLOW • Audio: WAV, M4A, or MP3 • Video: vertical 9:16 MP4 with captions and waveform • Library: saved voices, transcripts, and generated speech in one searchable place PRIVATE BY DESIGN Voice cloning and speech generation are processed on your device. Transcription also runs locally after its optional model download. Your recordings are not uploaded, no account is required, and the app contains no ads. One purchase gives you lifetime access to Vown and every future feature update. Vown currently supports English voice cloning, speech generation, and transcription. Only clone voices you own or have permission to use.
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.
Not assessed in a Build Kit yet.
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.