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.
Phase84 is a next generation phase distortion synthesizer
$12.99 · 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.
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 Phase84: 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 sample library compared to competitors
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: Occasional audio lag during playback
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No collaboration 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.
Phase84 is a next generation phase distortion synthesizer. It fuses gritty digital sounds with traditional analog punch. +++++ Phase84 is a Tabletop Ready App. Combine Phase84 with drum machines, sequencers, effects, and more inside Tabletop — a free modular music app for iPad. +++++ Phase84 is an extremely capable synthesizer and features over 110 presets, containing all sorts of basses, leads, pads, bell tones, sweeps, atmospheric sounds, pseudo-realistic tones, and more. While you don't need to know much about synthesizers to get a lot out of Phase84, experienced synth tweakers will be thrilled at the sheer variety of unique sounds that can be produced with this incredibly versatile synth. So What's Phase84 All About? Phase84 is what's known as a Phase Distortion synthesizer. This form of waveshaping synthesis has its roots in Casio’s brilliant CZ line of digital synthesizers from the 80s. It is designed to have the warmth of a subtractive (analog) synthesizer, yet be capable of the squelchy tones and sharp attacks of an FM synth. Phase84 in particular can create warm pads, glitchy sounds, dirty basses, filthy sweeps, screaming leads, and anything in-between. For those familiar with the typical Moog-like (or iMini-like!) synthesis, think of the "shaper" as being synonymous with "brightness" or "filter cutoff”. Features: More than 100 presets. MIDI support. inter-App Audio support. Advanced Keyboard section. Expressive Perform Mode with Groove Gate. Tabletop Ready App. Precision Knob mode. Phat, naturalistic unison feature for super thick pads and sweeps. Oscillator Section: 9 Params, 2 General-Purpose Oscillators, 1 Formant Oscillator. Mix Section: 8 Params including Delay Amount and Pulse Width. Envelope Section: Amplitude and Shaper Envelopes. Fully visualized and interactive ADSR plus special Fade Param. Delay/Filter Section: Stereo delay with loss modeling and a punchy overdriven analog-style filter. 3 LFOs: More flexible than your average LFO, this has 4 waveforms, optional delay and repeat count, and can go into the audible frequency range.
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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.