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
Viewloop
Turn your photos and videos into a beautiful, hands-free slideshow on iPhone and iPad.
$4.99
PRICE
$4.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Viewloop: map the core Photo & Video 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
Offer advanced editing tools like AI-based filters and effects.
Assumption to check: Limited editing features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement social sharing features to enhance user interaction.
Assumption to check: Low user engagement due to no social sharing options
Validate with people who use this workflow before building.
Hypothesis 3
Add options for resolution and quality adjustments during export.
Assumption to check: Lack of video quality settings
Validate with people who use this workflow before building.
Hypothesis 4
Implement cloud storage to save and access videos from multiple devices.
Assumption to check: No cloud backup for user creations
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
Turn your photos and videos into a beautiful, hands-free slideshow on iPhone and iPad. Viewloop is a lightweight slideshow viewer that plays your images and videos together — no importing, no organizing, no project files. Pick from your Photos library or browse Files and playback starts instantly. KEY FEATURES Instant Slideshows Pick from your Photos library or browse Files and playback starts immediately. Supports JPG, PNG, HEIC, GIF, TIFF, MP4, MOV, and more. Mix Photos and Videos Images and videos play seamlessly in a single slideshow. Each media type gets its own speed controls — set image timing from 2 to 20 seconds and video playback from 0.25x to 2x. Multiple Slideshows Keep several slideshows and switch between them from the session list. Each slideshow keeps its own playback, sorting, and speed settings. Smart Sorting Sort by name, date, file size, or shuffle randomly — all without losing your place. Zoom and Pan Pinch to zoom up to 10x, drag to pan, or double-tap for pixel-perfect 1:1 view. Double-tap and drag for precise zoom control. Playback auto-pauses so you can study details. Cinematic Fullscreen Auto-hiding controls with smooth crossfade transitions. Edge-to-edge display puts your media front and center. Keyboard and External Display Full keyboard support when connected — space to play/pause, arrows to navigate, +/- to zoom. Works beautifully on external displays. Privacy Focused Everything runs locally on your device. No uploads, no accounts, no tracking. Also available on Mac and Apple Vision Pro.
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
Expo
React Navigation
Expo Camera
React Native Gesture Handler
React Native Reanimated
Expo File System
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.
