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.
iPeng 9, the music remote for the Logitech® Squeezebox™, has been designed for the latest iOS versions and fully supports all iPhone and iPad form factors
$8.99 · 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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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 iPeng: 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: Difficult navigation structure for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No personalized recommendations based on listening habits
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.
iPeng 9, the music remote for the Logitech® Squeezebox™, has been designed for the latest iOS versions and fully supports all iPhone and iPad form factors. iPeng 9 is a remote control app that will work all over your home with your iPhone, iPad, iPod touch and Apple Watch. You can also purchase an additional playback capability as an In-App-Purchase that will turn your iPhone or iPad into a full-blown music player for your Squeezebox Server or Roon Server. *** New in iPeng 9 *** • Support of iPhone 11, Pro, X/XS and XS Max • Latest Apple Watch support including Series 5, under watchOS 3 and newer • Today Widget to use iPeng in Notification Center and on the lock screen. • Full multitasking support on iPad and iPad Pro, including Split View and Slide Over under iOS 9 and newer. *** What’s new compared to iPeng Classic? *** * Full Support of latest iOS Versions * • iPeng has been redesigned, matching Apple's flat UI design for an up-to-date appeal, and uses a modernized platform and code base for continuous support of new iOS features. * Universal App * • iPeng 9 is a universal app for both iPhone, iPad and Apple Watch, so you only have to purchase the app once. Older iPeng versions had separate apps for iPhone and iPad. * Customizable * • The customizable main menu allows you to show different menu items in your top level menu or hide things that you don’t need. • Change the structure of your main menu through a simple drag-and-drop interface. • You can select a bright or dark color scheme for iPeng, and iPeng can even automatically select it based on your lighting conditions. * Easier Multi-Room Control * • The redesigned MultiPlayer Control simplifies handling many players. • QuickSwitch lets you move playlists from one player to another easily with a swipe of your finger. • Have direct access to Power/Volume for each connected player and change other player settings in the player details. • Group players to synchronized groups. Jointly control playback and volume for these groups and move players between them using drag-and-drop or a toolbar. • Power all players in a group off with a single click when you leave. * Manage Playlists and Favorites * • View, save, change and rearrange not only your current playlist but also saved playlists and favorites. * Works with Logitech Squeezebox and compatible players * • iPeng 9 works with all Logitech Squeezebox Players as well as many Squeezebox-compatible players like Innuos Zen, the SOtM sMS-1000SQ and sMS-100 or VortexBox players. • With iPeng Playback, iPeng also works as a player with Roon. *** Enjoy the familiar features and comfort of iPeng. *** * Easy and Fast to Use * • The functionality of iPeng is optimized for speed of use guaranteeing long-term fun. • Built-in Tutorials help you to learn iPeng’s operation. * Explore Your Music Library (1) * • Browse your own files by categories like Albums, Artists, Genres or simply search for your music. * Explore Remote Services * • You get access to a whole world of internet radio and music services like Rhapsody™ and Spotify™ and have control over them as if they were in your own library. * Use 3rd Party Plugins (2) * • iPeng supports a growing number of 3rd party plugins for Squeezebox™, e.g. CustomBrowse, TrackStat, Music and Artist Information and many more. * Use MySqueezebox.com * • iPeng 9 doesn’t require a server to operate your Squeezebox, it also supports Logitech’s MySqueezbox.com online service. Note: This does not apply to the Playback functionality. iPeng requires one or more Squeezebox™ or any compatible hard- or software player. Squeezebox™ is a trademark of Logitech. (1) LogitechMedia Server/Squeezebox Server version 7.5 or newer available for free from mysqueezebox.com/download or downloads.slimdevices.com/nightly/ (2) Installation of 3rd party plugins in Logitech Media Server required.
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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.