# CAD Smart Modeling vs Infinity Sketch

The clearest difference is review sentiment: Infinity Sketch at 75% against CAD Smart Modeling's 0%. Infinity Sketch also leads on in-app purchases (none vs 7) and ads (none vs shown). CAD Smart Modeling's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 18.0). On price and ratings volume there is nothing between them.

Both are free to download. CAD Smart Modeling sells 7 in-app purchases, starting at $3.99 per month. Infinity Sketch asks for nothing beyond the download.

Infinity Sketch holds the better App Store score, 3.8 against 3.5. Both are backed by a comparable volume of ratings — 10 and 16 respectively. Written reviews point the same way: 0% of CAD Smart Modeling's written reviews are positive against 75% of Infinity Sketch's.

CAD Smart Modeling ships an update every 5 months, Infinity Sketch every 3 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CAD Smart Modeling | Infinity Sketch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (10 ratings)](https://appshunter.io/ios/app/cad-smart-modeling-3d-cad/id6476608505/reviews) | **[3.8 (16 ratings)](https://appshunter.io/ios/app/infinity-sketch/id6736661584/reviews)** |
| Number of ratings | 10 | **16** |
| Positive reviews | 0.0% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 440 MB | 20 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sebastian Kemper](https://appshunter.io/developer/1513694925) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### CAD Smart Modeling

[App page](https://appshunter.io/ios/app/cad-smart-modeling-3d-cad/id6476608505)

Create detailed 3D models, technical drawings, and digital prototypes on your mobile device. This versatile CAD app is suitable for architecture, product design, engineering, and 3D printing, offering intuitive tools for both beginners and professionals.

**Highlights:** 3D Modeling & CAD Design, Technical Drawing, Precise Geometric Constructions, Import & Export of CAD and 3D Files, Product Design & Prototyping, 3D Models for Architecture & 3D Printing

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium access | $3.99 | per month |
| Premium access | $8.99 | per month |
| Premium access | $22.99 | per year |
| Premium access | $44.99 | per year |
| Pro Version | $44.99 | per year |
| Premium Access | $44.99 | one-time |
| Premium Access | $89.99 | one-time |


### Infinity Sketch

[App page](https://appshunter.io/ios/app/infinity-sketch/id6736661584)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CAD Smart Modeling free?

CAD Smart Modeling is free to download, with in-app purchases available.

### Is Infinity Sketch free?

Infinity Sketch is free to download, with no in-app purchases.

### Which has better reviews, CAD Smart Modeling or Infinity Sketch?

Infinity Sketch is rated higher. CAD Smart Modeling averages 3.5 out of 5 from 10 ratings, while Infinity Sketch averages 3.8 from 16 ratings.

### Do CAD Smart Modeling or Infinity Sketch have ads?

CAD Smart Modeling shows ads; Infinity Sketch does not.

### Which is updated more often, CAD Smart Modeling or Infinity Sketch?

CAD Smart Modeling ships an update every 5 months, and Infinity Sketch every 3 weeks. Most recently, CAD Smart Modeling was updated on October 23, 2026 and Infinity Sketch on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*