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.
App Overview
TV3 - Acid Synth
Introducing TV3 - Acid Synth, the swiftest acid bassline synth
$6.99
PRICE
$6.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
9 ratings · Top 5%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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.
Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for TV3 - Acid Synth: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Add more granular control over sound parameters and effects.
Assumption to check: Limited sound customization options for advanced users.
Validate with people who use this workflow before building.
Hypothesis 2
Include beginner tutorials and preset sound packs.
Assumption to check: Steep learning curve for beginners.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a sharing feature for users to collaborate.
Assumption to check: No collaboration features for sharing sounds or sessions.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Introducing TV3 - Acid Synth, the swiftest acid bassline synth. Inspired by the legendary TB-303, TV3 combines a user-friendly interface with handy features to fast-track your acid jams. Key Features: - Dual Oscillators: Main and Sub oscillators with selectable Square and Sawtooth waveforms. - 24 dB/oct Low-Pass Filter: Resonant, non-self oscillating filter with adjustable cutoff and resonance controls. - Envelope Controls: Fine-tune your sound with parameters for accent, decay and envelope modulation. - Versatile Distortion: Add character to your basslines four distinct modes—Saturation, Saturated Wavefolding, Fuzz, and Nock. - Quick Randomization: Tap on Acid Boy for total sound randomization - Pattern Generator: Instant generation of endless patterns with adjustable complexity, length, scale, and key. - Pattern Editor: edit your generated sequences with pitch, accent, gate and slide controls. - MIDI Export: Export your patterns as MIDI files. TV3 offers a simple and fun workflow to help you produce iconic acid sounds on your iOS device. Download TV3 Acid Synth today and unleash the power of acid basslines at your fingertips.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
react-navigation
expo-av
BUILD KIT DIFFICULTY
Advanced
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.
