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.
iGuzheng's innovative "Follow Play" feature allows even complete beginners to effortlessly play professional Guzheng pieces!
$2.99 · 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.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for iGuzheng⁺ - Pro version: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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 song library compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline functionality
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be overwhelming
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.
iGuzheng's innovative "Follow Play" feature allows even complete beginners to effortlessly play professional Guzheng pieces! Guzheng is a Chinese plucked zither that dates back to 500 B.C. It is rich in playing techniques. The performer plucks the strings with his right-hand fingernails, while his left-hand fingers apply pressure to the strings to execute vibratos, slides, and other embellishments , as well as occasional plucking techniques. iGuzheng supports many playing techniques, like an acoustic Guzheng: · Playing techniques for Right Hand: Pluck, Glissando, Tremolo (Shake/摇指), Automatic Tremolo, Overtone · Playing techniques for Left Hand: Pitch Slide, Small Vibrato, Big Vibrato, Tap Pitch (Dian Yin – 点音) Main Features: √ Follow Play: iGuzheng's original "Follow Play" feature combines Guzheng playing symbols with string positions to provide real-time playing prompts, allowing even complete beginners to effortlessly play professional Guzheng pieces! ** Supports setting to follow only the right-hand part or both hands! ** When following only the right-hand part, iGuzheng will automatically play the left-hand part for you! ** Can be set to automatically play left-hand pressing actions: pressed notes, glissando, vibrato, etc. [Appendix] Meanings of various lines in Follow Play: Vertical line – Represents a "chord line," commonly used for major plucks, minor plucks, and chords. Wavy line – Represents a "glissando line," commonly used for ornamental notes, glissando, double thumb, heavy thumb, etc. Fine dashed line – Represents a "note group." All notes connected by fine dashed lines form a note group, which may consist of common fingering combinations (alternating thumb and middle finger, four-note patterns, etc.), grace notes, triplets, arpeggiated chords, rhythmic patterns, etc. Horizontal thick dashed line – Represents a "tremolo line," indicating the start and end times of the tremolo. √ Flexible Guzheng View — easy scrolling and zooming with drag/pinch gestures on the Pitch Slider Bar. √ Record your songs, and songs can be played back with animations. √ You can share your songs (*.igz or *.m4a) √ High-quality stereo samples from Guzheng. √ Additional instrument sounds: Harp, Marimba, Pipa, Ruan , Dulcimer √ Full 21 strings. √ Automatically play "Shake" technique (自动摇指) when you move your touch on the string horizontally. √ Smart snapping to the correct pitch grid when moving the pitch slider. √ Portamento / Vibrato. √ Overtone : use two fingers to tap strings at the same time. √ "Dian Yin" Effect (点音/Tap Pitch) : tap the pitch slider after plucking a string to create the "Dian Yin" sound effect. √ Tuning as standard Guzheng tunings or custom tuning. √ Transpose control .
Written user reviews are not shown here. Check current App Store reviews >
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.