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.
Callipeg mini is a 2D hand-drawn animation app for iPhone, offering both frame-by-frame and keyframe animation tools in a complete mobile studio environment
$4.99 · 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 Callipeg mini: Animation App: 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 desktop apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Performance issues with complex animations
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of sharing options to social media
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulty in restoring purchases
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.
Callipeg mini is a 2D hand-drawn animation app for iPhone, offering both frame-by-frame and keyframe animation tools in a complete mobile studio environment. Enjoy full access with a one-time purchase—no subscription required. Based on the acclaimed Callipeg for iPad, Callipeg mini puts a fully manageable timeline and advanced onion skin features in your pocket—ideal for professional and aspiring animators, illustrators, and creatives. Plus, use the innovative remote feature to transform your iPhone into a remote control for Callipeg on iPad, expanding your creative workflow and possibilities. Have suggestions or feedback? Join our Discord community and help us build a better animation tool together! Key Features - Hands-on Animation Studio: Organise your production with intuitive shot, scene, and folder management. Drag and drop assets, use color tags, and advanced search for efficient project management - Adaptive Interface: Enjoy a decluttered, gesture-based interface with seamless timeline control and supporting screen rotation in both portrait and landscape modes - Comprehensive Drawing Tools: Draw with an exhaustive set of brushes, including pencil, charcoal, ink, and more—or create your own. Customize brush parameters, tip, and texture for unique results - Advanced Layer System: Work with multiple layer types—drawing, video, transformation, audio, and group layers. Import images, videos, and audio for draw-over, rotoscopy or lip-sync. - Optimized for Gestures: Animate faster with multi-touch gestures—flip, play, pause, transform, and select drawings effortlessly. - Remote Workflow Integration: Pair Callipeg mini with Callipeg on iPad to use your iPhone as a remote. Flip drawings, play animations, and navigate frames—ideal for streamlined workflows - Flexible Import/Export: Export your work in a variety of industry standard formats (.mp4, .hevc, .gif, .png, .tga, .psd, .peg, and more). Support for JSON and XDTS ensures cross-platform compatibility - High-Performance tailored for animating: Create at up to 4K resolution and any frame rate (12, 24, 25, 30, 60 FPS). Add unlimited layers and reference images. Customize onion skin for precise frame-by-frame drawing. - Reliable Save & Backup: Automatic saving every 30 seconds, with backup reminders and version control, ensures your work remains secure throughout your creative process. --- Why Choose Callipeg mini? - All-in-one 2D animation studio for iPhone—no subscriptions, just a one-time purchase. - Designed for artists and animators who want professional tools on a mobile device. - There is more to it with the remote feature. - Constantly updated with new features and improvements. Start animating anywhere. Download Callipeg mini and transform your iPhone into a powerful animation studio today!
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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.