App Overview

Poison-202 Vintage Synthesizer icon

Poison-202 Vintage Synthesizer

Dmitrij Pavlov · Music

What reviewers and users say:

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.7
290 ratings · Top 15%

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.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

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.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Poison-202 Vintage Synthesizer: 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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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

Offer a wider variety of premium sound packs.

Assumption to check: Limited sound options compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Simplify MIDI setup with guided tutorials.

Assumption to check: Complexity in MIDI setup for beginners

Validate with people who use this workflow before building.

Hypothesis 3

Optimize audio engine for better performance.

Assumption to check: Inconsistent audio playback quality

Validate with people who use this workflow before building.

Hypothesis 4

Incorporate social sharing and collaboration tools.

Assumption to check: Lack of community features

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

What reviewers and users say: "This is a very solid virtual synth that, sonically, punches well above its asking price" - musicappblog "Man this sounds good, full of rich goodness from the days of analog yore" - thesoundtestroom "I've not beed this 'exited' about a synth app in a very, very long time" - Samuel Lindeman, experienced iOS musician "Amazing, from vintage to most modern. This synth sounds great. It is going to be top of the list for apps I use at live shows" - App Store review "This is the best $10 I've spent in a long time. I'm actually excited over what I will be able to do with Poison 202!" - App Store review "This is the best synth. Better than any soft synth or even hardware" - App Store review -------- Poison-202 is a professional Vintage Midi Synthesizer. Made by musicians for musicians, it is inspired by famous classic hardware synthesizers of 80's and 90's and has all the main sound creation blocks you can imagine: oscillators, cutoff Filters, ADSR-envelopes, ring, cross modulation, LFOs, sync, super-saw oscillator and more! Unlike many other software synthesizers at the market, which can reproduce only limited family of sounds, Poison-202 is designed to be able to reproduce almost any classic synthesizer timbre! Check out the Presets Demo video: http://www.youtube.com/watch?v=egQN1MRTjKs The library of 592 built-in factory presets includes famous patches that can be heard in the compositions of such electronic and rave scene music performers as The Prodigy, Chemical Brothers, Azzido Da Bass, Darude, Kraftwerk, Daft Punk and many others! You can play it with your fingers on iPhone / iPad, or you can plug-in your favorite USB MIDI keyboard into your device using Apple's Lightning to USB Camera Adapter and turn Poison-202 into a real synthesizer module! Features: • Audio Unit Extension (AUv3) support • Audiobus support • Inter-App Audio support • Virtual Midi support • can work either as standalone synth app, or as plug-in inside Cubasis, Garage Band, AUM, ModStep and other hosts • 2 oscillators, 5 waveforms: Saw, Pulse (with adjustable Pulse Width), Sine, Triangle and Super-Saw • one Super Saw oscillator generates 7 individual saw oscillators at the same time, with adjustable Mix and Detune parameters, reproducing famous classic analog strings and hoover sounds • additional sub oscillator + noise generator • 2 TVF (time variant filter) modules with Cutoff, Resonance, Keyboard tracking and ADSR envelope, 12 dB/octave • 2 TVA (time variant amplifier) modules with ADSR envelope • It is possible to pair two 12 dB filters to get one 24 dB/oct filter • Pitch envelope (Attack/Decay) for each oscillator • Ring, Sync, PW, XFM oscillator modulation • 2 LFO modulation sources with Frequency and Fade-In parameters • LFO's and Delay tempo sync • LFO cross-modulation • 6 waveforms of LFO: Triangle, Sine, Saw, Square, Trapezoid and Random (S&H) • 4 LFO modulation destinations: Pitch, Filter, Amplifier and PWM • 3-band EQ for each patch • Digital realtime effects: Distortion, Bit-Crusher, Chorus, Flanger, Delay, Panning Delay and Reverb with adjustable parameters • Master brickwall Limiter (can be switched on/off) • Two signal flow connection structures: Parallel and Series • Portamento, Solo playing mode with Legato switch • Pitch Wheel with adjustable pitch bend range • Modulation Wheel with assignable controls • Arpeggiator with 6 modes and 12 rhythm patterns with tempo and swing feel control • Scale play mode when playing onscreen keyboard with over 40 different scales to select from • Voice polyphony up to 24 (device dependent) • Up to 300 user presets to store • Import/Export user preset banks via iTunes File Sharing • Scalable and movable onscreen keyboard with key velocity control and Hold button • Show Oscillogram feature • Midi Learn feature • Arabic quarter-tone microtuning option Poison-202 support page: https://www.jimaudio.pro

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Screenshots

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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
expo-av
TypeScript
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.