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.
iReal Pro is two things musicians love in one app: a realistic backing band that plays along with you, and a huge free library of chord charts you can pull up anytime — at practice, at a jam session, or on a gig
$21.99 · In-app purchases
Evidence scope: #89 is the current overall US Paid chart position. 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.
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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 iReal 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
iReal Pro is two things musicians love in one app: a realistic backing band that plays along with you, and a huge free library of chord charts you can pull up anytime — at practice, at a jam session, or on a gig. Need to transpose a song for a singer? Done. Want to practice with a full rhythm section behind you? Hit play. Named one of TIME Magazine's 50 Best Inventions and trusted by thousands of students, teachers, and pros at schools like Berklee College of Music — iReal Pro has been helping musicians get better since 2008. BAND • 50 accompaniment styles — Swing, Bossa Nova, Blues, Funk, Rock, Bluegrass, Reggae, Latin, Gypsy Jazz, Country, and more • Customize each style with acoustic or electric piano, Fender Rhodes, guitars, upright or electric bass, drums, vibraphone, organ • 40 additional styles — blues, salsa, Brazilian — available as in-app purchases BOOK • Download thousands of free chord charts shared by the iReal Pro community • Create your own charts in minutes with the built-in editor • Organize charts into playlists for gigs, sets, or lessons PRACTICE • Adjust tempo, loop difficult sections, transpose to any key • Automatic tempo increase and key cycling for focused practice • Global Eb, Bb, F, and G transposition for horn players REFERENCE • Guitar, ukulele, and piano fingerings for any chord • Tap any chord in your chart to see how it's played • Scale suggestions for improvisation SHARE • Share charts and playlists with other iReal Pro users • Export charts as PDF or MusicXML • Export backing tracks as audio or MIDI files • Sync across iPhone, iPad, and Mac with iCloud FOR TEACHERS • Create playlists of exercises or tunes for students • Use in the classroom, over live stream, or while screen-sharing lessons We're a small team of musicians who built this app because we needed it ourselves. We hope you enjoy using it as much as we do.
Written user reviews are not shown here. Check current App Store reviews >
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: Users report difficulty in navigating complex chord progressions.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited offline capabilities for large song libraries.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Some users find the UI outdated and less appealing.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases can be confusing for users.
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.