Comparison

Limnu vs Whiteboard Infinite PDF Canvas

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

Head to head
About

Limnu

A fast and simple online whiteboard for collaborative meetings and brainstorming. Draw, plan, and think in real-time with others, with unlimited boards that are automatically archived. Experience the ease of a physical whiteboard in a digital format.

Highlights
  • Real-time collaboration
  • Unlimited board creation
  • Automatic archiving
  • Intuitive drawing tools
  • Cross-device accessibility
Features
Read full description

Limnu is a collaborative online whiteboard made to be fast and simple enough to use for online meetings and video conferences. With Limnu, you can draw, plan, and think at the same time with other people. Make as many boards as you want, as big as you want, see your boards from anywhere, and all your work is automatically archived. Never again will you have to write "DO NOT ERASE" on your whiteboard. Its as fast and simple as a real whiteboard, and it even looks like a real whiteboard.

About

Whiteboard Infinite PDF Canvas

This app provides an expansive digital canvas for sketching, diagramming, and note-taking. Seamlessly integrate text, images, and even live websites to connect your ideas. Export your creations as PDFs or present them directly from your device.

Highlights
  • Infinite canvas
  • Drawing and writing tools
  • Sticky notes and tables
  • Diagram connectors
  • PDF import and markup
  • Audio recording and transcription
  • AI Assistant
Features
Read full description

Whiteboard gives your ideas an endless canvas on iPad and iPhone. Sketch with Apple Pencil or your finger, add sticky notes, connect your thoughts into clear diagrams, then present your board or share it as a PDF. Use it to brainstorm, plan a project, teach a lesson or map out a process. A CANVAS WITHOUT EDGES Draw, write and move in any direction on a board that grows with your ideas. Choose a dotted, squared or lined background on white, cream, gray, blue or green paper. The minimap shows where you are on a large board, and Find and Replace searches every sticky note, table and text box. DRAW AND WRITE NATURALLY Use Apple Pencil with pressure and tilt, or a compatible stylus or your finger. Choose from pens, markers, pencils, crayons, watercolor and more, and duplicate your favorite tools with their own colors and widths. Switch tools with a double-tap or squeeze of Apple Pencil, turn handwriting into typed text with Scribble, and add text boxes and shapes. STICKY NOTES, TABLES AND MORE Add sticky notes in any color, tables, photos, files, links and live websites. Scan documents or printed text with your camera, insert symbols, stamps and clipart, or create images with Image Playground. CONNECT YOUR IDEAS Select an item and tap one of its handles to add a connected item, then just start typing. Choose straight, elbow or arc connectors with arrows, labels and line jumps. Drop an item onto a connector to place it in between. Turn on Flow to send animated dots along your connectors and bring a process to life. Paste Mermaid code to turn text into a diagram. GRAPHS FOR MATH AND SCIENCE Add a coordinate graph in one tap, plot functions and inequalities, and work on it with Apple Pencil. Your ink moves and resizes with the graph. ARRANGE WITH EASE Drag to select many items at once, then align, distribute and group them. Lock items in place, copy and paste them between boards, and undo any change. RECORD THE CONVERSATION Record audio right on the board: a lecture, a meeting or your own explanation. Pause and continue, skip back 15 seconds and generate a transcript, so the recording stays next to the ideas it explains. PRESENT YOUR BOARD Save views of your board as scenes and present them full screen, one after another. Guide your audience with the laser pointer, and show your board on an external display while you control it from your iPad. WRITE ON PDFs Import PDFs and write on them with Apple Pencil. Highlight passages, add comments and sign documents, or place a PDF on a board next to your notes. AI ASSISTANT AND TEXT NOTES Use the AI Assistant to brainstorm ideas, break a goal into tasks or plan a presentation. It can also write, solve math, explain, rewrite, correct and translate text. When words come first, create a formatted Text Note. ORGANIZE, SYNC AND PROTECT Keep boards in unlimited folders and subfolders, and open several at once in tabs. iCloud keeps your work in sync across iPhone and iPad, and your boards are also in the Files app. Lock the app or individual folders with a passcode or Face ID, and rely on automatic backups. Export a board as a PDF, as an image of the current view or as an editable board file. Designed for iOS 26 and the new iOS 27, with dark mode, keyboard shortcuts and support for iPhone Duo. From a quick sketch to a finished presentation, Whiteboard keeps all your ideas in one place. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Limnu4 screens
Whiteboard Infinite PDF Canvas4 screens

Verdict

The call

The clearest difference is rating: Whiteboard Infinite PDF Canvas at 4.9 against Limnu's 2.6. Whiteboard Infinite PDF Canvas also leads on update cadence (every 11 days vs every 6 months). Limnu's advantage is in-app purchases (none vs 3) and iOS requirement (9.2 vs 26.0). On price, ratings volume, ads and device support 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. Whiteboard Infinite PDF Canvas sells 3 in-app purchases, starting at $3.99 per month. Limnu asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Whiteboard Infinite PDF Canvas holds the better App Store score, 4.9 against 2.6. Both are backed by a comparable volume of ratings — 13 and 19 respectively.

UpkeepUpdate frequency

Limnu ships an update every 6 months, Whiteboard Infinite PDF Canvas every 11 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Limnu versus Whiteboard Infinite PDF Canvas: the parameters behind the verdict, then further details
ParameterLimnuWhiteboard Infinite PDF Canvas
PriceFreeFree
Rating2.6 (13 ratings)4.9 (19 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings1319 — better
Update frequencyEvery 6 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.2 — better26.0
Further details — not scored
Size11 MB381 MB
Age rating4+4+
DeveloperLimnu, Inc.Kairoos Solutions SL

Customer experience

Limnu

All ratings12 ratings
Positive33.3%
Neutral25.0%
Negative41.7%
Written reviews15 reviews
Positive33.3%
Neutral20.0%
Negative46.7%

Whiteboard Infinite PDF Canvas

All ratings19 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Limnu

No in-app purchases

3 purchases

Whiteboard Infinite PDF Canvas

Subscriptions2
  • Unlock All Features and AI3 Days trial$3.991 Month
  • Whiteboard Annual3 Days trial$14.991 Year
One-time1
  • Full Pro Unlock$14.99

Questions

Is Limnu free?
Limnu is free to download, with no in-app purchases.
Is Whiteboard Infinite PDF Canvas free?
Whiteboard Infinite PDF Canvas is free to download, with in-app purchases available.
Which has better reviews, Limnu or Whiteboard Infinite PDF Canvas?
Whiteboard Infinite PDF Canvas is rated higher. Limnu averages 2.6 out of 5 from 13 ratings, while Whiteboard Infinite PDF Canvas averages 4.9 from 19 ratings.
Do Limnu or Whiteboard Infinite PDF Canvas have ads?
Neither Limnu nor Whiteboard Infinite PDF Canvas shows ads.
Which is updated more often, Limnu or Whiteboard Infinite PDF Canvas?
Limnu ships an update every 6 months, and Whiteboard Infinite PDF Canvas every 11 days. Most recently, Limnu was updated on October 24, 2026 and Whiteboard Infinite PDF Canvas on October 30, 2026.

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