# BIM 360 vs Perfect Structure

The clearest difference is rating: Perfect Structure at 5.0 against BIM 360's 1.8. Perfect Structure also leads on update cadence (every 2 days vs every 6 weeks). BIM 360's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, monetization model, device support and iOS requirement there is nothing between them.

Both are free to download. Perfect Structure sells 1 one-off in-app purchase. BIM 360 asks for nothing beyond the download.

Perfect Structure holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: BIM 360 has 148 ratings behind it against 1, so its average is the more settled of the two.

BIM 360 ships an update every 6 weeks, Perfect Structure every 2 days. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | BIM 360 | Perfect Structure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (148 ratings)](https://appshunter.io/ios/app/bim-360/id1261062351/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfect-structure/id1581860758/reviews)** |
| Number of ratings | **148** | 1 |
| Positive reviews | 4.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 249 MB | 32 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Autodesk Inc.](https://appshunter.io/developer/295089690) | [Gokhan Behcet Sahin](https://appshunter.io/developer/1409805750) |

## What reviewers say

### BIM 360

[App page](https://appshunter.io/ios/app/bim-360/id1261062351)

Access project documents, plans, and models on your mobile device. Execute construction quality and safety workflows, manage documents, and collaborate with your team from anywhere. Stay on time and on budget with real-time project information.

**Highlights:** Access project documents, plans, and models, Execute construction quality and safety workflows, Collaborative document and data management, Manage 2D plans, 3D models, and project documents, Deploy quality and safety programs to mobile workers, Create, assign, and approve RFIs, Create, view, and share 2D & 3D markups

**In-app purchases:** none

**What reviewers like**

- 📱 Access to project data in the field
- 📊 Document hub functionality for team collaboration
- 🔍 Search capability for checklists by document number
- 📥 Ability to download drawings for offline access

**What reviewers complain about**

- 🐛 Constant crashes and freezing
- 🌐 Requires constant internet connectivity
- ⚠️ Frequent loss of unsaved work
- 🔄 Unreliable syncing between devices
- ⏱️ Extremely slow performance and lag

**Reported bugs**

- App crashes when uploading photos to issues or checklists
- Login failures with 'account not activated' error
- Syncing failures requiring app reinstallation
- Drawings fail to load or open
- App freezes when viewing 3D models

**Requested features**

- Offline-first functionality with reliable syncing
- Portrait and landscape orientation support
- Admin tools for team member management
- Better markup and annotation capabilities
- PDF search functionality


### Perfect Structure

[App page](https://appshunter.io/ios/app/perfect-structure/id1581860758)

Design and optimize reinforced concrete columns and beams with support for multiple international design codes and languages. Generate reports in PDF, CSV, and DXF formats, and share them with colleagues. Offers a user-friendly interface for quick and flexible structural analysis.

**Highlights:** Reinforced concrete column and beam design, Support for 5 international design codes, Multilingual support (8 languages), Output in PDF, CSV, and DXF formats, Modern and user-friendly interface, Design checks and optimal reinforcement calculation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfect Structure Pro | $8.99 | one-time |


## Frequently asked questions

### Is BIM 360 free?

BIM 360 is free to download, with no in-app purchases.

### Is Perfect Structure free?

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

### Which has better reviews, BIM 360 or Perfect Structure?

Perfect Structure is rated higher. BIM 360 averages 1.8 out of 5 from 148 ratings, while Perfect Structure averages 5.0 from 1 ratings.

### Do BIM 360 or Perfect Structure have ads?

Perfect Structure shows ads; BIM 360 does not.

### Which is updated more often, BIM 360 or Perfect Structure?

BIM 360 ships an update every 6 weeks, and Perfect Structure every 2 days. Most recently, BIM 360 was updated on October 5, 2026 and Perfect Structure on October 11, 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.*