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.
TwistedWave is a very fast and easy to use audio editor and recorder.
$9.99 · 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.
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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 TwistedWave Audio Editor: 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 effects compared to professional software
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Steep learning curve for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No collaborative features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Performance issues with large files
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.
TwistedWave is a very fast and easy to use audio editor and recorder. Even when working with huge files, it will remain very fast and fluid, and will never run out of memory. UNIQUE TO TWISTEDWAVE • Very fluid, even with very large files • Unlimited undo / redo history, happens instantly RECORD AUDIO • No duration limit other than the available storage • Up to 24 bit / 96 kHz audio if your audio interface supports it • Record stereo audio with the built-in microphone (iPhone XS or more recent) • Record studio quality audio with an external microphone • Record audio from other music applications with Audiobus APPLY EFFECTS • Precision Time Stretching & Pitch Shifting technology licensed from ZTX • All the AudioUnit extensions (AUv3) available on the App Store can be used with TwistedWave • Cut, copy / paste audio around • Fade in / out • Reverb • Delay / echo • Distortion • Equalizer (parametric, or iPod EQ) • Dynamics processor, can be used as a compressor or a noise gate • Peak limiter to amplify audio without causing distortion • Amplify or normalize the audio to a given level • Filters (low-pass, high-pass, band-pass, low-shelf, high-shelf) • Convert the sampling rate (with SoX' very high quality resampler) • Reverse. Play the file backwards, mostly for fun! MANY FILE FORMATS SUPPORTED • WAV • M4A (AAC or Apple Lossless) • MP3 (Encoded with the LAME MP3 encoder for the best quality) • FLAC • AIFF • CAF MANY IMPORT OPTIONS • Import songs from the music library • Import files from the Files app • Import files from an SD card or USB drive, with the right adapter • Open files sent from other apps • Browser access, send a file to TwistedWave from a device on the same WiFi network MANY EXPORT OPTIONS • Send your files by - Email - iMessage - SoundCloud - Dropbox - AudioCopy - An FTP or SFTP account - Any app that accepts audio files • Export multiple files in a single ZIP file • Browser access to allow downloading and uploading files from/to TwistedWave • File too large? Just send a link. (30 days for free on TwistedWave's servers) BROWSER ACCESS Connect to the TwistedWave app from a web browser on another device or computer on the same WiFi network, and: • Play and download the files directly from a browser • Send files to TwistedWave by drag and dropping them in the browser
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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.