# Onshape 3D CAD vs flat palette

The clearest difference is rating: flat palette at 5.0 against Onshape 3D CAD's 3.5. flat palette also leads on review sentiment (85% vs 47%) and iOS requirement (9.3 vs 18.0). Onshape 3D CAD's advantage is ratings volume (419 vs 4) and update cadence (every 3 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

flat palette holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Onshape 3D CAD has 419 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 47% of Onshape 3D CAD's written reviews are positive against 85% of flat palette's.

Onshape 3D CAD ships an update every 3 weeks, flat palette every 3 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Onshape 3D CAD | flat palette |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (419 ratings)](https://appshunter.io/ios/app/onshape-3d-cad/id923421284/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/flat-palette/id1234418016/reviews)** |
| Number of ratings | **419** | 4 |
| Positive reviews | 47.3% of reviews | **84.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 77 MB | 31 MB |
| Requires iOS | 18.0 | **9.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PTC Inc.](https://appshunter.io/developer/501201404) | [Tokyo Cartographic CO.,LTD.](https://appshunter.io/developer/1044962368) |

## What reviewers say

### Onshape 3D CAD

[App page](https://appshunter.io/ios/app/onshape-3d-cad/id923421284)

A cloud-based 3D CAD platform for professional users to create, edit, and collaborate on designs in real-time from any device. It offers robust parametric modeling tools and seamless data management for teams.

**Highlights:** Real-time collaboration, Parametric modeling tools, Cloud-based data management, Cross-device accessibility, Integrated commenting, Version control

**In-app purchases:** none

**What reviewers like**

- 🚀 Powerful CAD features
- 🌐 Accessible from any device
- 👍 Intuitive interface
- 💡 Great for on-site work
- 🌟 Exceptional for a free app

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 👎 Unintuitive and clunky UI
- 🔒 Requires account sign-up
- 💰 Expensive paid plans
- 🔍 Difficult to find/use key features

**Reported bugs**

- Frequent crashes and freezes
- Dimensions not visible/editable
- Rotation/view controls unreliable
- Unable to create account
- Incompatible with older devices

**Requested features**

- Add keyboard shortcuts
- Improve dimensioning tools
- Allow private file storage
- Optimize for iPad/Apple Pencil
- Provide better documentation/tutorials


### flat palette

[App page](https://appshunter.io/ios/app/flat-palette/id1234418016)

This app helps with creative activities by providing tools to manage color schemes. It allows adjustment of colors using RGB, CMYK, and HSB sliders, and can extract colors from images to generate palettes. Users can create custom color lists, name them, and export them as images.

**Highlights:** RGB/CMYK color adjustment, HSB color adjustment, Image color extraction, Custom color list creation, Color scheme generation, Hex color code input

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Onshape 3D CAD free?

Onshape 3D CAD is free to download, with no in-app purchases.

### Is flat palette free?

flat palette is free to download, with no in-app purchases.

### Which has better reviews, Onshape 3D CAD or flat palette?

flat palette is rated higher. Onshape 3D CAD averages 3.5 out of 5 from 419 ratings, while flat palette averages 5.0 from 4 ratings.

### Do Onshape 3D CAD or flat palette have ads?

Neither Onshape 3D CAD nor flat palette shows ads.

### Which is updated more often, Onshape 3D CAD or flat palette?

Onshape 3D CAD ships an update every 3 weeks, and flat palette every 3 months. Most recently, Onshape 3D CAD was updated on November 11, 2026 and flat palette on November 2, 2026.

---

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