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.
Neutron Player is an advanced music player with an audiophile-grade platform-independent in-house developed 32/64-bit audio engine which does not rely on the OS music player API and thus delivers truly unique experien...
$12.99 · In-app purchases
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.
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Combine features and design from your favorite apps.
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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 Neutron Music Player: 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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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 offline functionality compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent audio quality settings
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social sharing features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Neutron Player is an advanced music player with an audiophile-grade platform-independent in-house developed 32/64-bit audio engine which does not rely on the OS music player API and thus delivers truly unique experience to you. * It outputs hi-res audio directly to the internal DAC (including USB DAC) and offers a rich set of DSP effects. * It is the only application capable of sending audio data to the network renderers (UPnP/DLNA, Chromecast) with all DSP effects applied, including the gapless playback. * It features a unique PCM to DSD real-time oversampling mode (if supported by DAC), so you can play your favorite music in DSD resolution. * It supports AI-assisted Queue generation with Google Gemini AI engine. * It offers the sophisticated user interface with an advanced media library functionality that is appreciated by audiophiles and music lovers from all parts of our world! FEATURES * 32/64-bit hi-res audio processing (HD audio) * OS and platform independent decoding and audio processing * Hi-Res Audio support (up to 32-bit, 3072 kHz) * Bit-perfect playback * Supports all audio formats * Native DSD (direct or DoP), DSD * Multi-channel native DSD (4.0 - 5.1: ISO, DFF, DSF) * Output all to DSD * DSD to PCM decoding * DSD formats: DFF, DSF, ISO SACD/DVD * Module music formats: MOD, IM, XM, S3M * Voice audio format: SPEEX * Playlists: CUE, M3U, PLS, ASX, RAM, XSPF, WPL * Lyrics (LRC files, metadata) * Streaming audio (plays Internet radio streams, Icecast, Shoutcast) * Supports large media libraries * Supports iTunes library (non DRM) and local files (inside /Documents folder) * Supports external storage via Apple Lightning USB port (iOS 13+) * Network music sources: - SMB/CIFS network device (NAS or PC, Samba shares) - UPnP/DLNA media server - SFTP (over SSH) server - FTP server - WebDAV server * Output to Chromecast (up to 24-bit, 192 kHz, no limit for a format or DSP effects) * Output to UPnP/DLNA Media Renderer (up to 24-bit, 768 kHz, no limit for a format or DSP effects) * Direct output to USB DAC (via USB OTG adapter, up to 32-bit, 768 kHz) * UPnP/DLNA Media Renderer server (gapless, DSP effects) * UPnP/DLNA Media Server * Device local music library management via internal FTP server * DSP effects: - Parametric Equalizer (4-70 band, per channel) - Graphic EQ mode (21 presets) - Frequency Response Correction (5000+ AutoEq presets for 2500+ headphones, user defined) - Adaptive Loudness Compensation (ALC) - Surround Sound (Ambiophonic RACE) - Crossfeed - Compressor / Limiter (compression of dynamic range) - Time Delay (loudspeaker time alignment) - Dithering - Pitch, Tempo - Phase Inversion (channel polarity change) * Speaker overload protecting filters: Subsonic, Ultrasonic * Normalization by Peak, RMS (Preamp gain calculation after DSP effects) * Tempo/BPM analysis and categorization * AI-assisted generation: Queue, EQ/FRC presets * Replay Gain, BPM from metadata * Gapless playback * Hardware and Preamp volume controls * Crossfade * High quality real-time optional resampling * Real-time Spectrum, Waveform, RMS analyzers * Balance (L/R) * Mono mode * Profiles (multiple configurations) * Playback modes: Shuffle, Loop, Single Track, Sequential, Queue, A-B Repeat * Playlist management * Bookmarks * Media library grouping by: album, artist, composer, genre, year, rating, folder * Artist grouping by 'Album Artist' category * Tag editing: MP3, FLAC, OGG, APE, SPEEX, WAV, WV, M4A, MP4 (internal, SMB, SFTP) * Folder mode * Clock mode * Timers: sleep, wake * Interface languages: 中文 (繁体), 中文 (简体), 한국어, 日本語, Việt, ไทย, Deutsch, Italiano, Indonesian, Malay, Nederlands, Français, English, Español, ελληνικά, Русский, Português, Magyar, Serbian, Polski, العربية, Türk SUPPORT Please report bugs directly by e-mail or via forum. Forum: https://forum.neutroncode.com About Neutron HiFi™: https://neutronhifi.com Follow us: https://x.com/neutroncode https://facebook.com/neutroncode
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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.