Infinity Sketch

Infinity Sketch

Grid-based schematic sketching

12 ratings
11 reviews
Free

Details

  • Released
  • Updated
  • October 8, 2024
  • July 26, 2026

Features

Infinity Sketch screenshot #1 for iPhone
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Infinity Sketch screenshot #8 for iPhone
Infinity Sketch screenshot #9 for iPhone
Infinity Sketch screenshot #10 for iPhone
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About

Create precise schematics with a customizable grid and line editing system. Seamlessly integrate images as backgrounds or symbols to enhance your workflow. Enjoy a practically infinite canvas for unrestricted creativity, all offline and completely free.

Customizable grid for precision
Image import for backgrounds/symbols
Practically infinite canvas
Offline functionality
Apple Pencil and finger drawing support
Combines freehand and grid lines
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What's New in Infinity Sketch

1.21

July 26, 2026

Bugfix: Changing stroke widths now works correctly.

User reviews

Can't find basic set up such as Grid Size.

The basic document settings that one would expect to set up are missing.

Response from developer

Hi! Just tap the “Side Panel” icon — you’ll find fully configurable grid settings there ;)

'No copy & paste

This is not useable

Response from developer

Hi, copy and paste between documents via the system pasteboard is definitely possible! After selecting, tap "Copy selection to pasteboard" in the menu. In the destination document, tap the "Insert image" button to paste.

It’s surprising

You download it, it’s done In seconds and once you open it it’s not bad at all!! 👌

Response from developer

Thank you very much 🙂

pretty cool

I like pretty much everything about this app except for the UX around pasting in images. You can only paste in an image if you first take a screenshot of it, which seems weird. why add extra unnecessary steps? Why not just allow people to paste things in?

Response from developer

Hi, actually this should work. For example: You can copy images from your Photos app to the system pasteboard and paste them into Infinity Sketch. Please reach out to me on X if you need further help.

An app for Marine Engineers

This app is great for marine engineers when they are tracing systems. It’s like writing on engineering graph paper but your lines snap straight without needing a straight edge!

I do have a few feature requests.
- In-App-Tutorials: You should make a tutorials page with all of your X videos because I couldn’t figure out how to make perfect circles or rotate drawings till I looked at your X profile.
- Grid Presets: The ability to save presets and make one default so when the user creates a new drawing, the preset is automatically applied.
- Text annotations for labeling components.
- A Symbol Library: Save selected symbol drawings and access them in a collapsible side panel by dragging the symbol to the canvas. Allow the user to create multiple libraries to categorize components.
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Response from developer

These are valid points. I have them on my to-do list! Thank you very much!

Developer apps

FAQ

What is Infinity Sketch?

Infinity Sketch is a free application for iOS devices designed for grid-based schematic sketching. It offers a customizable grid, line editing, and image integration to help users create precise diagrams and designs.

Is Infinity Sketch free to use?

Yes, Infinity Sketch is completely free to use. It has no hidden charges, no in-app purchases, and no subscription fees, making it accessible for all users.

Does Infinity Sketch require an internet connection?

No, Infinity Sketch works entirely offline. You can sketch anytime, anywhere without needing an internet connection, ensuring uninterrupted creativity.

What devices does Infinity Sketch support?

Infinity Sketch is available on iPhone and iPad. It supports both Apple Pencil on iPad and finger drawing on iPhone and iPad, adapting to your preferred input method.

Can I import images into Infinity Sketch?

Yes, you can seamlessly paste images from your system's pasteboard into Infinity Sketch. These images can be used as backgrounds or as symbols to enhance your creative workflow.

How often is Infinity Sketch updated?

Infinity Sketch was last updated on December 23, 2025, with version 1.16. This indicates a commitment to ongoing development and improvements for the application.

What is the age rating for Infinity Sketch?

Infinity Sketch has an age rating of 4+. This means it is suitable for children aged 4 and above, making it a safe tool for younger users interested in design and drawing.

How does Infinity Sketch compare to other drawing apps?

Infinity Sketch differentiates itself with its specialized grid-based system for precise schematics and its seamless image integration. Its completely free and offline nature also sets it apart from many freemium or subscription-based alternatives.