# Thetas vs 3D看图

The clearest difference is update cadence: 3D看图 at every 3 weeks against Thetas's every 2 months. 3D看图 also leads on iOS requirement (13 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Thetas ships an update every 2 months, 3D看图 every 3 weeks. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Thetas | 3D看图 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/3d-3d/id6770898294/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 12 MB | 57 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dongguan Xinle Electronic Science & Technology Co., Ltd.](https://appshunter.io/developer/1834057831) | [文华 宁](https://appshunter.io/developer/1740866281) |

## What reviewers say

### Thetas

[App page](https://appshunter.io/ios/app/thetas/id6751217586)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D看图

[App page](https://appshunter.io/ios/app/3d-3d/id6770898294)

This app allows users to quickly view and edit 3D models and 2D drawings on mobile devices. It supports over 40 mainstream 3D and 2D drawing formats, offering tools for collaboration and communication.

**Highlights:** View 3D models and 2D drawings, Supports over 40 formats, Edit 3D drawings, Collaboration tools, Measurement and annotation features, Cloud sharing capabilities

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

**In-app purchases:** none


## Frequently asked questions

### Is Thetas free?

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

### Is 3D看图 free?

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

### Do Thetas or 3D看图 have ads?

Neither Thetas nor 3D看图 shows ads.

### Which is updated more often, Thetas or 3D看图?

Thetas ships an update every 2 months, and 3D看图 every 3 weeks. Most recently, Thetas was updated on September 29, 2026 and 3D看图 on October 8, 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.*