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
Recap – AI Captions for Videos
Recap lets you add professional animated subtitles to your videos
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
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'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 Recap – AI Captions for Videos: 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
Implement advanced AI models for better accuracy.
Assumption to check: Lack of effective AI captioning accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Provide non-destructive editing features for captions.
Assumption to check: Limited editing capabilities for captions
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and clearly communicate benefits.
Assumption to check: Subscription model can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Optimize video processing for faster exports.
Assumption to check: Performance issues with video processing
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
Recap lets you add professional animated subtitles to your videos. Maximise your views and engagement on Instagram, TikTok, YouTube, Linked and More! It's the best captions app for iPhone. Recap will auto-transcribe the speech in your video and automatically create amazing animated captions. Just Import your video → Auto transcribe into captions → Customise the look & feel → Export your video! What can Recap do? • Add great looking captions to your videos automatically • Real-time preview of your captions as you edit and tweak the style • Auto Transcribe: Recap will automatically transcribe the speech in your video into perfectly timed captions • Intelligence Suggestions: On-device Apple Intelligence suggestions to help you improve the look of your captions • Edit the Text: change, re-type or edit any individual captions • Customisable Styles: Adjust the font, colors, borders, backgrounds of your captions to personalise to your look and brand • Preset Styles: Quickly apply a new look to your captions from our selection of professional designed preset styles • Create and manage multiple projects The optional Recap Pro upgrade is available as a one-time purchase, or auto-renewing subscription. The optional upgrade is charged to your Apple Account at confirmation of purchase. If you subscribe, your subscription will automatically renew unless cancelled at least 24-hours before the end of the current period. You can manage your subscription from your Apple Account settings. Privacy Policy: https://captions.app/privacy Terms of Use (EULA): 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
Supabase
expo-av
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Zustand
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.
