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
XAir Monitor Mixer
XAir Monitor Mixer is a personal monitor mixer for select Behringer and Midas digital mixers
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
3 ratings · Below Average
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 included13 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.
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 XAir Monitor Mixer: 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
Create a more visually appealing and user-friendly interface.
Assumption to check: Poor user interface and UX design.
Validate with people who use this workflow before building.
Hypothesis 2
Include more advanced audio controls and features.
Assumption to check: Limited audio mixing features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 3
Implement thorough testing and QA processes.
Assumption to check: Frequent bugs and crashes.
Validate with people who use this workflow before building.
Hypothesis 4
Add an onboarding tutorial to guide users through features.
Assumption to check: Lack of clear onboarding for new 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
XAir Monitor Mixer is a personal monitor mixer for select Behringer and Midas digital mixers. It allows each musician on stage to choose exactly what they hear in their monitor without affecting (or being able to affect, even by accident) the band's main mix. XAir Monitor Mixer supports the Behringer X18, XR18, XR16, XR12, and the Midas MR18 and MR12. XAir Monitor Mixer deliberately does not include controls that would allow a musician on stage to accidentally mute channels or otherwise alter the main mix. Usage: 1. Connect to the same WiFi network as the XR18. In most cases, this should be enough for the app to find your mixer. However, if your sound engineer has changed the default address of the mixer, you'll have to enter that address in the app's connection screen. 2. Choose which monitor you want to mix. If your sound engineer hasn't named these in a way that makes it obvious which is yours, ask him which is yours. 3. Mix away. :) If you have feedback, suggestions, or bug reports, please visit the forums at xairmonitormixer.tetzfiles.com or send an email to [email protected]. Note: support for mixers other than XR18 was recently added. If you run into any issues, please let us know. Ensuring proper compatibility with all supported mixers is our top priority.
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.
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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.
