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.
App Overview
Anker soundcore
Please Note:
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
39,912 ratings · Top 15%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Anker soundcore: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Improve stability and expand compatibility with more devices.
Assumption to check: Limited device compatibility and connection issues
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the UI and reduce clutter for a more focused experience.
Assumption to check: Cluttered user interface with too many options
Validate with people who use this workflow before building.
Hypothesis 3
Introduce customizable equalizer settings and save presets.
Assumption to check: Lack of advanced features like custom equalizer presets
Validate with people who use this workflow before building.
Hypothesis 4
Enhance playlist management with better sorting and searching capabilities.
Assumption to check: Difficulties in managing playlists and tracks
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Please Note: 1. The soundcore app currently only supports the following soundcore devices: Flare / Flare+ / Flare S+ / Rave / Rave Mini / Mega / Trance / Wakey / Icon+ / Motion+ / Infini Pro / Model Zero / Model Zero+ / Liberty 2 Pro / Liberty Air 2 / Liberty 2 / Life NC / PowerConf / Flare 2 / Rave Neo / Rave Partycast / Trance Go / Soundcore Mini 3 / Motion Boom / Soundcore 3 / Boost(Upgraded) / Life Q30 / Life Q20+ / Life Q35 / Life Tune / Life Tune Pro / / Life Tune XR / Life A2 NC / Life Dot 2 NC / Life Dot 2S / Liberty Air 2 Pro / Life P3 / Liberty Neo 2 / Liberty 3 Pro / Rave+ / Select 2 / Life Dot 2 XR / Rave Neo SE / Life Tune Pro / Soundcore min 3 Pro / Life P3 / Life Note 3 / Life Note 3S / Life 2 Neo / Life Q10i / Life Dot 3i / Soundcore Dot 3i / Life Note 3i / Soundcore Note 3i / Sport X10 / Life A3i / Soundcore A3i / Life P3i / Soundcore P3i / Space A40 / Space Q45 / VR P10 / Sleep A10 / Liberty 4 2. Not all soundcore devices support all features shown in the screenshots. App Description: The soundcore app offers unique features for each of the supported soundcore devices and allows you to personalize and optimize your listening experience. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Redux
React Navigation
AsyncStorage
react-native-gesture-handler
BUILD KIT DIFFICULTY
Advanced
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.
