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.
* A quick sketch of Galadriel (played by Cate Blanchett) from "The Lord Of The Rings" film series; done using Vermeer's Lens, a 2B pencil and blue ballpoint pen on an A4 printer paper
$1.99 · 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.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
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 Vermeer's Lens: AR Drawing: map the core Graphics & Design 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 drawing tools compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Low user ratings indicate usability issues.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No collaborative features.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model may deter users.
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.
* A quick sketch of Galadriel (played by Cate Blanchett) from "The Lord Of The Rings" film series; done using Vermeer's Lens, a 2B pencil and blue ballpoint pen on an A4 printer paper. ◉ Vermeer's Lens is no ordinary drawing app. It is a drawing app that helps you make real sketches on paper. ◉ Vermeer's Lens is an augmented reality drawing app that works like an AR projector. It projects any photo you've selected from your photo library on any paper or sketch books you prefer drawing on. ◉ Vermeer's Lens allows you to trace out the images you want to draw before shading. But it is more than a tracing tool, as it also allows you to capture areas of different tones and highlights - achieving a more lifelike picture. ◉ Vermeer's Lens is a great tool for portrait drawing. ◉ Vermeer's Lens can also be used in short drawing/sketching practices for beginners. ◉ Vermeer's Lens enables even beginners to make stunning drawings. ◉ Through its precise algorithms, what is traditionally difficult, such as portraits, can now be done without the need of construction lines. ◉ This app works on most phones without using Apple's ARKit which can only run on newer high performance chips. It's a simple effective tool for a simple hobby. *** See "Developer's website" below for a video demo *** A Youtube channel (see "Developer's website") is set up to provide you with examples of Vermeer's Lens in action. Content will be regularly uploaded so long as there are people interested in this app. *** This app works on most phones without using Apple's ARKit which can only run on newer high performance chips. It is simple, reliable and stable. ________________________________________________________ How it works : > a photo is chosen from your photo library and “projected” over the paper to draw on. > This projection is achieved by imaging the paper on the phone screen, and overlaying the translucent photo onto it. > With the phone held in a phone-holder, you can use its screen as a lens, through which you trace out the photo onto the paper. > Phone can be tilted and rotated to the angle most comfortable to you, while Vermeer’s Lens transforms the photo to match the perspective of the paper. > Not just the outlines, even the different subtle tones and contours of a face could be captured, to get that 3-D effect. > Opacity of the overlaying photo could be adjusted to allow close comparison between your drawing and the photo. > The overlaying photo responds to on-screen gesture: you could move, scale and rotate the photo during sketching. > A zoom option allows you to zoom in on your drawing for delicate pencil work. in addition : > A Vermeer’s Lens channel is also created on youtube to provide our users with additional "instructions & tutorials"on the use of this app to create art (videos updated regularly). This is linked directly to the app via the “Demo” button. > You can email us for support/feedback directly via the “Contact Us” button on the main menu of the app. Or leave a message (go to the “about” tab) on our youtube channel (see “Developer’s website” below). For more info and demo: > See “Developer’s website” below
Written user reviews are not shown here. Check current App Store reviews >
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.