Comparison

Linea Sketch vs 乱書

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Linea Sketch

This app provides a powerful yet intuitive drawing and note-taking experience. Its minimalist interface keeps the focus on your creations, offering features like intelligent shape creation, precise layer management, and artistic brushes. Record your process with time-lapse and utilize various grids and templates for diverse projects.

Highlights
  • Minimalist UI
  • Intelligent shape creation (ZipShapes)
  • Elegant layer management
  • Artistic watercolor brush
  • Time-lapse recording
  • Grids and templates
  • Annotation tools
Features
Read full description

Draw and take notes with ease. Linea Sketch gives you the right balance of power and control to capture thoughts and ideas effortlessly. The focus stays where it belongs: on your creations, not on the tools. Why Linea Sketch? ⁕ Minimal UI - Every control is designed to stay out of your way until you need it. Linea's elegant interface puts the focus on your creations. ⁕ Easy Colors - Choose from a wide range of pre-defined colors, or create your own with a single tap. Autogenerated tints & shades save time and effort. ⁕ Elegant Layers - Simplified set of layers that can be easily rearranged, merged, locked, or adjusted. Use the file browser and photo library to import images for reference and tracing. ⁕ ZipShapes & ZipLines - Simply hold still for a moment after drawing a line, rough square, circle, or triangle and ZipShape automatically creates a perfect version for you. You can then adjust final size, placement, and corner radius. ⁕ Move / Transform - Lasso part of your sketch, then move, rotate, flip, or resize. Transform one or more layers quickly & easily. ⁕ Watercolor Brush - Create rustic & artistic effects by painting with organic pigment in three modes: Simple, Wet, and Cloud. ⁕ Annotations - Add labels, notes, and callouts to your sketches using iOS Scribble or a keyboard. Fonts, colors, placement, and more can be adjusted effortlessly. ⁕ Time-Lapse - Record your creative process as you sketch! Save a video of the result as either a compressed 30 second clip or a full length movie. ⁕ Grids & Templates - A wide range of traditional grids, 3D isometric lines, storyboards, and templates for iOS screen or icon design. ⁕ Universal App - Linea Sketch is a universal app for iPad and iPhone. Your sketches seamlessly sync via iCloud to all of your devices, wherever you go. …………………………………… What do you get? Tools: • Technical Pencil - Hard lead, thin lines • Art Pencil - Soft lead, thick lines • Felt Tip Pen - Thin solid lines that vary in opacity • Marker - Fat solid lines • Watercolor Brush - Paint with organic, artistic pigment • Fill - Roll out wide areas of color or tap to flood fill • Blend - Smudge or soften strokes • Eraser - Clean up with your finger or Pencil • Pencil Plus! - Create additional effects using Apple Pencil pressure and tilt Colors: • Always on-screen & easily available • Tints and shades are automatically generated in six variations • 11 predefined color sets for various types of drawing • Create custom colors for branding and consistency • Drag & drop color swatches with other apps Layers: • Five flexible layers that can be dragged, merged, or cleared • Import any image from Files, Photo Library, or clipboard • Lockable to prevent accidental changes • Adjust opacity or double tap to toggle visibility on/off Templates: • Traditional grids displayed with lines & dots • Hexagonal, circular, and isometric (3D) grids • Notepads, to-do lists, and sheet music • App user interface and icon design • Storyboards in 16:9, 1.85:1, and 2.35:1 ratios • Adjustable intensity and can be hidden quickly Backgrounds & Paper Textures: • White Bond, Butcher’s Paper, Black Construction, Blueprint & many more • Adjustable custom background colors • Paper grain can be toggled on or off Exporting: • Save as PNG, JPEG, PSD, and PDF • Save entire sketch or crop a portion • Export to Slack, Dropbox, AirDrop & more • Presentation Mode shows just the canvas via AirPlay - perfect for classrooms Projects: • Organize drawings in project folders • Share, rename, or move drawings within projects • Thumbnail previews of drawings save time • Export PDF of entire project General: • Two-finger tap for Undo, three-finger tap for Redo • Pinch to zoom and rotate canvas • Tap Compass to lock, flip, or reset your canvas • Supports portrait & landscape orientations • Supports split screen and drag & drop Terms and Conditions: https://linea-app.com/terms Privacy Policy https://linea-app.com/privacy

About

乱書

Features
Read full description

気軽にイラストやメッセージを描いて保存ができ、その画像をビジネスに活用したり、知人や友人にも送れる。

Screenshots

Linea Sketch4 screens
乱書1 screens

Verdict

The call

The clearest difference is in-app purchases: 乱書 at none against Linea Sketch's 3. 乱書 also leads on update cadence (every 3 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Linea Sketch sells 3 in-app purchases, starting at $1.99 per month. 乱書 asks for nothing beyond the download.

UpkeepUpdate frequency

Linea Sketch ships an update every 3 months, 乱書 every 3 days. The most recent releases landed on October 22, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Linea Sketch versus 乱書: the parameters behind the verdict, then further details
ParameterLinea Sketch乱書
PriceFreeFree
Rating3.7 (802 ratings) — better—
Positive reviews62.3% of reviews—
Number of ratings802 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.5 — better
Further details — not scored
Size133 MB4 MB
Age rating4+4+
DeveloperThe IconfactoryHiroe Katayama

Bugs and requests

Linea Sketch

Reported bugs

4 issues
  • Drawings disappearing or not saving properly
  • Layers and colors not behaving as expected
  • Sudden crashes when switching tools or actions
  • Slow performance and loading issues

Requested features

6 requests
  • Add smudge/blending tool
  • Implement watercolor brush
  • Include text tool and annotation options
  • Support for higher resolution canvases
  • Introduce animation and video features
Show 1 more
  • Improve file management and organization

乱書

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Linea Sketch

Subscriptions2
  • Linea Monthly Subscription14 Days trial$1.991 Month
  • Linea Yearly Subscription14 Days trial$19.991 Year
One-time1
  • Linea Full Purchase$59.99
None

乱書

No in-app purchases

Questions

Is Linea Sketch free?
Linea Sketch is free to download, with in-app purchases available.
Is 乱書 free?
乱書 is free to download, with no in-app purchases.
Do Linea Sketch or 乱書 have ads?
Neither Linea Sketch nor 乱書 shows ads.
Which is updated more often, Linea Sketch or 乱書?
Linea Sketch ships an update every 3 months, and 乱書 every 3 days. Most recently, Linea Sketch was updated on October 22, 2026 and 乱書 on October 7, 2026.

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