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
AVPlayer
Do you enjoy watching videos on your iPhone? Do you hate not being able to because your iPhone cannot support the video format? Or do you hate the inconvenient and time-consuming hassle of trying to convert video form...
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
281 ratings · Top 30%
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 AVPlayer: map the core Entertainment 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
Implement personalized recommendations based on user preferences.
Assumption to check: Limited content discovery and recommendations
Validate with people who use this workflow before building.
Hypothesis 2
Enhance offline download management with better categorization.
Assumption to check: Lack of offline content management
Validate with people who use this workflow before building.
Hypothesis 3
Include parental control features for family safety.
Assumption to check: Missing parental controls
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance for smoother browsing and playback.
Assumption to check: Slow performance with large libraries
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
Do you enjoy watching videos on your iPhone? Do you hate not being able to because your iPhone cannot support the video format? Or do you hate the inconvenient and time-consuming hassle of trying to convert video formats to fit into one that your iPhone can support? This is why the AVPlayer was created. The AVPlayer can play almost any computer video file format such as AVI, Xvid, WMV and much more clearly and effortlessly. No converting hassles. Just copy files via USB and just drag and drop into the AVPlayer’s Media Explorer. The AVPlayer can also support external subtitle files such as SMI and SRT. So if you enjoy watching videos on your iPad, then the AVPlayer is an absolute necessity. • Support Formats - Dolby Digital (AC3), Dolby Digital Plus (EAC3) - Support High quality video clips ( 720P, 1080P ) - MP4,MOV,M4V - XVID,AVI,WMV,RMVB,ASF,H264,MKV… most of all movie file formats. - SMI, SRT, TXT, SubStationAlpha Subtitles • Post Processing - High quality video processing - Contrast,Saturation,Brightness - TV-Out • Control the playback speed (From 0.5X to 2.0X) - User setting support - Sweep to the left : move to backword 10 sec - Sweep to the right : move to forward 10 sec - Sweep to the top : 1.5X speed - Sweep to the down : normal speed • Additional features - Rotation Lock / Aspect ratio:auto/16:9/4:3/Full screen - Folder Management:Pass code/Move/Rename/Create - Resume play from last position - Scrubbing search - supports e-mail attachment by "Open In" feature • USB/WIFI Transfer • Note 1. How to add video with USB - Run iTunes 9.1 or above - Device->My Device(My iPad)->Apps, drag and drop files to the AVplayer's documents 2. Support High quality video clips ( 720P, 1080P ) - High quality video clips of 720P (1280 x 720) or more are recommended for MP4 format. - MP4, MOV, M4V formats that QuickTime supports can be played up to 1080P by using H/W Decoder but, Post Processing function isn’t provided. - Support H/W decoding for MKV and AVI (720P supported on iPad1, 1080P supported on iPad2 / The New iPad) - Hybrid decoding mode is added and now it is able to play high resolution videos by using hardware accelerator feature embedded in iPhone/iPad even for mkv or avi in h264. Also battery use time has extended. - Application may crash in iPhone 3GS / iPod Touch due to heavy use of memory in Hybrid decoding. Try turning off all application running in background and reboot the device by holding down sleep mode button for long time. - If screen shakes it means hardware decoding is not supported. Try turning off hybrid decoding. - When the file formats are available for MKV or AVI the player supports hardware decoding. - If you cannot choose audio in mp4 or avi, change the extension to mkv temporarily and chosen audio channel will be applied. 3. The optimal speed when advancing its playing speed can differ depending on the way it’s compressed and the size. Video clips of XVID (AVI) 720 x 480 can be fast played up to 1.3-1.5 times faster than normal.
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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.
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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.
