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.
NOTE: This app is no longer recommended for purchase
$599.99
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.
Kit ready. Verify your email to download it.
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 SignalScope Pro 2020: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
NOTE: This app is no longer recommended for purchase. SignalScope X version 13+ offers perpetual license options as well as subscriptions. SignalScope Pro 2020 offers a professional tool set to meet your measurement and analysis needs as an engineer, consultant, educator, student, researcher, or savvy hobbyist in areas such as acoustics (sound and vibration), audio, electronics, and electroacoustics. Features: - Analyze signals coming from the Mac or iOS device’s current audio input device. - Assign engineering units to your input signals and calibrate external transducers for accurate measurements. - Assign input channel units and sensitivities for individual USB Audio devices. - Direct support for Digiducer digital accelerometers and 485B39 USB ICP signal conditioner from The Modal Shop. - Direct support for miniDSP UMIK-1 measurement microphone and EARS headphone/IEM measurement system. - Nominal acoustic sensitivities included for iPhone and iPad built-in microphones, voltage sensitivities for headset input (including the Lightning-to-headset adapter included with recent iPhone models) - Manually switch between available audio input and output sources. - Load microphone frequency response data (FRD) and apply frequency response correction (FRC) to FFT-based measurements. - Manually adjust audio sample rates, even up to 192 kHz, depending on input hardware. - Save acquired measurement data to CSV, tab-delimited ASCII text, or MAT files. - Save high-resolution analyzer display images to PDF files. - Retrieve your data files from your device via Files (iCloud Drive), iTunes File Sharing, or through a web browser on another device. Files may also be opened in other compatible apps (e.g. Mail, Notes, Numbers, Dropbox, etc). Basic Tools: - Oscilloscope - Basic oscilloscope and triggering functions. - FFT Analyzer - Spectrum analyzer with user-settable frequency limits and basic triggering - 2D Real-time Spectrogram Analyzer - XY Plotter - Create Lissajous curves on your Mac, iPhone, or iPad. Advanced Tools: - 3D Real-time Spectrogram Analyzer - Stunning live visualization of incoming data - Octave-band Analyzer - Whole and 1/3-octave RTA - Level Meter - Overall signal level meter - Noise Dosimeter - Data Recorder - Stream up to 8 channels to WAV, AIF, or CAF audio files. - Stereo Signal Generator Pro Tools: - Dual-channel System Analyzer (Dual FFT analysis with support for Frequency Response Magnitude/Phase, Phase Delay, Group Delay, Coherence, Impulse Response and Cross-Correlation) - Room Acoustics Analyzer (T20, T30, T60, nonlinearity, EDT, Early Decay Time, Center Time, Clarity, and Definition in various frequency bands, manual or automatic adjustment of Schroeder integration limits) - MultiTool - Powerful data monitoring and project management (Add up to 2 subtools on iPhone, 6 subtools on Mac or iPad Pro with 10.5-inch or larger display, 4 subtools on other iPad models, and save an arbitrary number of different configurations for easy recall at a later time.) - Multi-channel Audio File Player - Analyze pre-recorded data. Additional Pro Features: - Data logging support in the Level Meter, Octave Analyzer, and Noise Dosimeter - Percentile exceeded sound levels in the Level Meter and Octave Analyzer - NC, RNC, and NR references curves, NC, SIL, and NR values in the Octave Analyzer Learn more about SignalScope Pro 2020 at FaberAcoustical.com. SignalScope Pro 2020 will receive major upgrades, consistent with those available in the SignalScope X Pro Tool Set subscription, through calendar year 2021, after which it will receive maintenance updates through 2023. It can be used indefinitely thereafter on a compatible version of macOS or iOS.
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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 user engagement features (no social sharing options)
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: High price point may deter users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Complexity in settings may confuse users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of customization for graphs and visualizations
Validate with people who use this workflow before building.
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.