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.
Ricalko lets you create incredible artwork, see how your drawings take shape, like magic! It is great for beginners who want to learn drawing and it is perfect for advanced users who want to improve even more!
$5.99 · 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.
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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 Ricalko: Camera Lucida 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 and features compared to professional apps.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Can be difficult to use for beginners.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Performance issues with high-resolution images.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social features for sharing artwork.
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.
Ricalko lets you create incredible artwork, see how your drawings take shape, like magic! It is great for beginners who want to learn drawing and it is perfect for advanced users who want to improve even more! Ricalko has many smart features that let you achieve the results your aiming to, but in few words it is able to virtually project photos, so you can trace them on a paper sheet, an easel or on any other surface! You don't have to be a professional artist to reach amazing results. How is it able to do that? In normal mode you have to put your device onto a stand (DIY works too, like a simple glass), with the camera pointing to a sheet of paper below for example. On your screen an overlay will be shown and you will be able to see both the photo and your hand below so you can trace it! See below for more details... CRAFT REALISTIC ARTWORK FROM ANY PHOTO You can choose any photo and then create art from it. Pencil and paper? Brush and watercolours? You choose! LEARN TO DRAW AND SEPARATE LAYERS Split photos to different layers, in colors or grayscale, see them one by one individually and trace them on your art to create the final result. Perfect for learning! CREATIVE FILTERS Turn your photo into a drawing, a comic or apply a posterisation, Ricalko filters are great for creativity. PERSPECTIVE MODE You don't have to keep your device perpendicularly if you don't have a stand, you can also keep it angled, perspective mode will remove any distortion and you will be able to create your artworks without any particular effort. You just have to set it with the guidelines helper image! AR MODE Don't like keeping your device still? You don't have to with the augmented reality. You can select a marker, the app will recognise it and place your photo virtually next to it, so you can trace it! USE ANY CAMERA You can use any camera on your device, wide angle, zoom lens, ultra wide angle or even the front camera, this one with the perspective mode and a reflector (to be purchased in online stores, such as OSMO and not included). ZOOM TO BE PRECISE After you have setup your environment you can zoom on the area where you are drawing to see even more clearly, with natural gestures like pinch to zoom or by moving your device closer in AR Mode. NO SUBSCRIPTIONS AND NO IN APP PURCHASES You get what you see, there are no in app purchases or additional subscriptions! Buy the app once and keep it forever. PREMIUM CUSTOMER SUPPORT Need help? Have a suggestion? See it included in future releases and drop an email to [email protected] REQUIREMENTS Ricalko does not have any particular requirement since supports iOS 14+ devices only. If you can download it, it will work on your device. A printer is suggested in order to print markers for AR Mode and the guidelines image for Perspective mode, even if they could also be displayed on an additional supporting device.
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.