# Autodesk Vault Mobile vs StackFM Main

Autodesk Vault Mobile and StackFM Main are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Autodesk Vault Mobile ships an update every 3 months, StackFM Main every 5 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Autodesk Vault Mobile | StackFM Main |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (12 ratings)](https://appshunter.io/ios/app/autodesk-vault-mobile/id1513937436/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | — |
| Size | 64 MB | 312 MB |
| Requires iOS | 17.4 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Autodesk Inc.](https://appshunter.io/developer/295089690) | [StackFM](https://appshunter.io/developer/909035419) |

## What reviewers say

### Autodesk Vault Mobile

[App page](https://appshunter.io/ios/app/autodesk-vault-mobile/id1513937436)

Access and manage design and engineering data on your mobile device. View 2D/3D designs, check files in/out, approve documents, and participate in change orders. Supports over 100 file formats for seamless project collaboration.

**Highlights:** View 2D and 3D designs, Check non-CAD files in/out, Approve and sign documents, Create and participate in change orders, Perform advanced searches, Support for over 100 file formats, Save files locally

**In-app purchases:** none


### StackFM Main

[App page](https://appshunter.io/ios/app/stackfm-main/id6503330878)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Autodesk Vault Mobile free?

Autodesk Vault Mobile is free to download, with no in-app purchases.

### Is StackFM Main free?

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

### Do Autodesk Vault Mobile or StackFM Main have ads?

Neither Autodesk Vault Mobile nor StackFM Main shows ads.

### Which is updated more often, Autodesk Vault Mobile or StackFM Main?

Autodesk Vault Mobile ships an update every 3 months, and StackFM Main every 5 months. Most recently, Autodesk Vault Mobile was updated on November 3, 2026 and StackFM Main on November 4, 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.*