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
SoundPrism Pro
What is SoundPrism Pro?
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.3
53 ratings · Top 30%
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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.
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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 SoundPrism Pro: 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
Include more advanced editing tools like layering and effects.
Assumption to check: Limited audio editing features compared to DAWs.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the UI with a guided onboarding process.
Assumption to check: Interface can be cluttered for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Add social sharing options and collaboration features.
Assumption to check: Lack of social features for sharing compositions.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a more robust free tier with essential features.
Assumption to check: Subscription model may deter casual users.
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 is SoundPrism Pro? * a professional composition tool and midi controller * an interactive generator for harmonic sound textures and epic cinema tracks * a completely new way to control existing VSTis, synthesizers and sound modules * an intuitive way to visualize and internalize musical relationships * an innovative way to interact musically with geometric pitch space visualizations * a way to define awesome pitch layouts by using the new PitchClassShifter What can I do with it? * compose film soundtracks * find new chord progressions for your tracks * create loops with advanced tonality * compose epic sound textures for your next video game * provide your media presentations with self made music Where do I find detailed info? * watch the Trailer (composed with SoundPrism Pro) at www.youtube.com/audanika * check out the interactive manual at www.soundprismhowto.com * read our blog audanika.tumblr.com to find out more about the scientific theory behind * try SoundPrism standard to test SoundPrism (without MIDI and PitchClassShifter) ***New Expression feature:*** - SoundPrism Pro now supports Accelerometer Input to control MIDI CC Events - go to out www.soundprismhowto.com to find out more What our users are saying: "I urge all of you to pick up Sound Prism Pro- one of my top 3 music apps. Now with more midi!" Jim Guthrie (composer of Swords&Sworcery:EP) -http://bit.ly/hUiylq "I had a GREAT time playing it before and will make a video of myself playing later today!! I LOVE it!!" Jordan Rudess via Skype "It took less than a few minutes to create verse and chorus melodies that work together. In this quick demo I used some free Roland TR-808 samples and a software Korg Wavestation through D16′s Devastor distortion. Truly inspirational." Oliver Chesler - http://bit.ly/hucUWf "I'm not a keyboard player, and the way this app already plays the chords for you, you get a whole new sound from the Sound Module you use." Comment on PalmSounds http://bit.ly/hGv53g "SoundPrism Pro as a wireless midi controller for iPad is pretty darned useful" Paul Bailey via Twitter "I own many midi apps, SoundPrism Pro is by far the best a Beautiful app Thank you" Cane Creek via Twitter
Written user reviews are not shown here. Check current App Store reviews >
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
react-navigation
expo-av
Firebase
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.
