# Alteia Infield vs CADFast

The clearest difference is in-app purchases: Alteia Infield at none against CADFast's 4. Alteia Infield also leads on ads (none vs shown) and device support (3 vs 1). CADFast's advantage is update cadence (every 3 weeks vs every 2 months). On price and iOS requirement there is nothing between them.

Both are free to download. CADFast sells 4 in-app purchases, starting at $9.99 per 7 days. Alteia Infield asks for nothing beyond the download.

Alteia Infield ships an update every 2 months, CADFast every 3 weeks. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Alteia Infield | CADFast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 27 MB | 34 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alteia](https://appshunter.io/developer/1574478404) | [玲娟 干](https://appshunter.io/developer/1822427885) |

## What reviewers say

### Alteia Infield

[App page](https://appshunter.io/ios/app/alteia-infield/id1574478402)

**In-app purchases:** none


### CADFast

[App page](https://appshunter.io/ios/app/cadfast-dwg-viewer/id6793851636)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CAD看图 - dwg viewer Pro | $9.99 | per 7 days |
| CAD看图 - dwg viewer Pro | $19.99 | per month |
| CAD看图 - dwg viewer Pro | $29.99 | per 3 months |
| CAD看图 - dwg viewer Pro | $39.99 | per year |


## Frequently asked questions

### Is Alteia Infield free?

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

### Is CADFast free?

CADFast is free to download, with in-app purchases available.

### Do Alteia Infield or CADFast have ads?

CADFast shows ads; Alteia Infield does not.

### Which is updated more often, Alteia Infield or CADFast?

Alteia Infield ships an update every 2 months, and CADFast every 3 weeks. Most recently, Alteia Infield was updated on October 8, 2026 and CADFast on October 25, 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.*