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.
Built for Live performance and hands free use, Quantiloop recreates the simplicity of a hardware loop pedal in an iOS app
$14.99 · 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.
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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 Quantiloop Pro - Live Looper: 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 sound effects and packs available.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complex interface can be overwhelming for beginners.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High price point may deter new users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of 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.
Built for Live performance and hands free use, Quantiloop recreates the simplicity of a hardware loop pedal in an iOS app. Attach a MIDI foot controller and control it the way you want. No MIDI controller at hand; just preset your loop length, enable auto–record or a count–in and your loops will automatically close, no hands or feet required. Big onscreen controls allow for easy configuration and tactile control by vocalists or beat boxers. Focus on your performance instead of fiddling with dip switches or complex menu’s. Be Creative Create 4 tracks with endless layers of overdubs to build your performance. Record a Chorus, Verse and Bridge and switch between them seamlessly or create a 1 bar percussie loop on track one, a 4 bar chord progression on track two and layer a bass line on top, all in perfect synchronisation. Rhythm Guide The builtin rhythm guide provides a rhythmic backing. Use the internal metronome for practice, import drum loops from virtually anywhere or host and control your favourite rhythm apps to enhance your performance. MIDI master lets you control MIDI hardware, and MIDI slave lets Quantiloop follow it. Ableton Link lets you even play in time over WiFi with external apps and devices. Quantisation aligns your actions to the nearest measure or beat so you stay in time, and real-time tempo control sets the pace. Prefer setting your own pace, disable quantisation and Quantiloop will react to your actions with minimum latency to create tight synchronised recordings. FX Assign up to 3 simultaneous effects to the input. Use the built-in transpose to covert your guitar into a bass, or host your guitar amp sim directly in Quantiloop. The results will be recorded into your loops. Or assign up to 3 simultaneous track effects to the output. Use the tape stop to add drama, introduce a key change to build up your performance, or host an Inter-App audio/AU reverb processor. Track FX may be assigned to a single track, all tracks or the combined output. Features • Free, Synced and Paralel,Serial, Mixed Playing Styles • Multiple Quantise Modes • Multiple Stop Modes • Unique Dub Mode and Mute Mode • Unlimited Overdubs • Overdub Decay • Undo / Redo • Auto Record • High quality stereo audio • Clear loop status display • Rhythm guide with optional auto-start, auto-stop and count-in • Audible and Visual Metronome • Send start, stop and host sync to hosted rhythm apps. • Sync to host when embedded in an Inter-App-Audio host • Real-time Tempo Control • Extensive MIDI control • Multiple Assignments per MIDI controller (tap, hold, double tap) • MIDI Program Change support for changing presets • Supports Audiobus and Inter-App-Audio and Audio Units (AUv3) • Individual outputs for each track and rhythm • Synchronise to other apps and devices with Ableton Link • MIDI clock sync (both slave and master) • 4 physical/iaa/au/audiobus inputs routable to any track • 8 outputs (main, monitor, track 1-4, rhythm, input out) • 3 assignable input Fx, including transpose, reverb and IAA, AUv3 • 3 assignable track Fx, including transpose, reverse, tape stop, fade and IAA, AUv3 • Cloud (iCloud, Dropbox, Audioshare …) import / export • AudioCopy/Paste • Open In • Store Phrase Presets in unlimited banks with 100 presets each • Individual Volume and panning controls for each track
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.