iOS-first sketch training tool

Sketch Flow

AI sketch correction for learning step by step.

Upload or capture a drawing, identify the current sketch stage, see visual issues, follow correction steps, and review annotation layers without turning the app into an automatic drawing finisher.

Product Positioning

A private workspace for sketch correction, not a one-click image app.

Sketch Flow is built for students practicing plaster heads, portraits, geometric forms, and still life, and for teachers who need faster critique and annotation.

The app keeps every sketch inside a project-first workflow: source media, AI jobs, analysis artifacts, annotation layers, credits, and training history stay connected.

Sketch Loop

From current sketch to the next correction.

Sketch Flow focuses on the learning loop: diagnose the stage, correct the largest issue first, revise outside the app, and return with the next capture.

  1. 01 Create a Sketch Project

    Keep one exercise, student work, or critique task organized.

  2. 02 Upload or capture the sketch

    Use the photo library or camera; media stays routed through the project Media Center.

  3. 03 Run sketch analysis

    The AI job detects the current stage, scores the work, and returns structured issues and correction steps.

  4. 04 Toggle annotation layers

    Grid, axis, contour, value, line direction, and focus overlays help explain where to adjust.

  5. 05 Revise and compare later

    Later slices add revised sketch upload, before/after comparison, and saved training records.

Interface Preview

Project-first, calm, and built for repeated practice.

The iOS app keeps the same proven workspace structure while the domain language shifts to sketch projects, sketch boards, analysis, issues, correction steps, and annotation layers.

Analysis Model

The app reads the sketch process as stages.

Each analysis identifies the current stage, the score pattern, the most important issues, and the next correction steps.

Current Stage Composition, big shape, proportion, structure, light-dark separation, value, volume, line direction, or final adjustment.
Issue List Prioritized visual problems with severity, region, and a concrete suggestion.
Correction Steps Ordered teacher-like instructions with reasons and completion criteria.
Annotation Layers Deterministic overlays for grid, axis, contour, structure, value, and focus cues.
Training Summary A later V1 slice tracks revisions, weak stages, and progress over time.
Safety & Boundaries

A teaching assistant with traceability, consent, and clear limits.

Sketch Flow helps users understand what to correct next. It is not a teacher marketplace, online course platform, exam cheating tool, or service that finishes drawings for the user.

Private by default

V1 private user content is not used for public galleries, public marketing, case studies, or app-owned model training without separate consent.

Tool boundary

Analysis, annotations, comparisons, previews, and reports do not provide legal advice, rights clearance, or commercial-use guarantees.

Versioned consent

Terms, Privacy, copyright policy, acceptable use, upload rights, AI responsibility, and download rights are recorded.

Immutable credits ledger

Grants, debits, refunds, purchases, adjustments, and trial credits are recorded server-side.

DMCA-ready data hooks

Content IDs, review status, takedown records, and repeat-infringer handling remain part of the product architecture.

Credits

Credits stay visible. Pricing stays server-side.

The frontend shows the server-returned cost, balance, and entitlements. Failed AI jobs and failed downloads should not consume credits according to ledger records.

Trial 100 credits

New users receive trial credits only after Apple or Google registration and required consent.

Analysis Server quoted

Sketch analysis and future comparison/report actions are charged only through CreditLedger.

Downloads Rights gated

Export and download actions keep the existing technical-service fee model without granting legal rights.

Release Track

iOS V1 is being prepared with account, legal, and billing gates intact.

App Store metadata, StoreKit products, public legal URLs, operator details, and DMCA contact information remain release checklist items. This site is prepared for the public Sketch Flow identity.