App Overview

Video Crop & Zoom - HD icon

Video Crop & Zoom - HD

Francis Bonnin · Photo & Video

Video Crop & Zoom - HD allows you to crop your videos in an easy and precise way.

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.7
239 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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A product spec, screen plans, and build steps for your coding agent.

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What's included16 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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Video Crop & Zoom - HD: 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

Include more filters and effects for a competitive edge.

Assumption to check: Limited editing features compared to more advanced apps

Validate with people who use this workflow before building.

Hypothesis 2

Implement better memory management and testing.

Assumption to check: Occasional crashes during heavy editing

Validate with people who use this workflow before building.

Hypothesis 3

Add cloud storage integration for user convenience.

Assumption to check: Lack of cloud backup options

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the UI with guided tutorials and onboarding.

Assumption to check: User interface can be confusing for new users

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

Video Crop & Zoom - HD allows you to crop your videos in an easy and precise way. Why would you do that? • You want to remove a person or an object from a video. Crop your video to make this part invisible. • You need to straighten a video in order to fix the horizon. • You have recorded a video with a portrait orientation and you would like to change it to a landscape orientation. • You want to add small effects to your video, like a zoom-in to someone's face, shortly followed by a zoom-out to a larger general view. • You want to keep the best of your video only, cropping the main part of it, and removing the superfluous. • You want to crop your video with a specific constrain (square, 4x3, 16x9 , ...) or some precise dimension (580p, 1080p, ...) before sending it to your TV or your favourite social service. The Input video can be imported from your device in several ways. The modified version (if there is one) or the original version of the video are both available. The camera can be used directly to record a video if needed. You can also connect your device to your computer in order to drag and drop specific videos (Files feature). The output video can be exported in several ways. Create a new video in the Photo app or in the Files app. Directly modify the input video by adding an edited version. Share the video to another application. An animated and original user interface allows you to crop (and zoom and rotate), if necessary, every frame of the video independently. An interpolation will be done automatically between each of your modifications, in order to scale and move progressively the crop area. Those cropped areas can be defined by using some simple gestures, but in case some high precision is needed, you can directly change the values (in pixels for the size and position, in degrees for the angle). Some optional visual guides, like configurable grids, and contextual information, can be displayed to help you track your target. This application can run, on your iPhone and your iPad, as a standalone application, a Photo Extension, or as an Action Extension (from the compatible applications like the Photo app). Portrait and Landscape orientations are supported in all screens. Dark mode of iOS13 is supported. You will find the original and intuitive user interface, common to all our videos applications. These applications have been featured many times by Apple and various websites.

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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.

SUGGESTED BUILD STACK
React Native
Expo
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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.