# Bluebeam vs Corabuild

The clearest difference is review sentiment: Corabuild at 100% against Bluebeam's 3%. Corabuild also leads on rating (5.0 vs 1.5) and update cadence (every 3 days vs monthly). Bluebeam's advantage is ratings volume (392 vs 3). 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.

Corabuild holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: Bluebeam has 392 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 3% of Bluebeam's written reviews are positive against 100% of Corabuild's.

Bluebeam ships an update monthly, Corabuild every 3 days. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Bluebeam | Corabuild |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (392 ratings)](https://appshunter.io/ios/app/bluebeam/id1479484276/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/corabuild/id6774769130/reviews)** |
| Number of ratings | **392** | 3 |
| Positive reviews | 2.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | Free |
| Size | 288 MB | 33 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bluebeam, Inc.](https://appshunter.io/developer/489696449) | [corabuild.ai, Inc.](https://appshunter.io/developer/6774769132) |

## What reviewers say

### Bluebeam

[App page](https://appshunter.io/ios/app/bluebeam/id1479484276)

Access and collaborate on PDF documents directly from your mobile device. Communicate project updates with markups and work offline by syncing files. Seamlessly join live collaboration sessions and manage document revisions from the field.

**Highlights:** Real-time PDF collaboration, Markup and annotation tools, Offline file access, Document syncing, Studio Project management, Live session joining

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

**In-app purchases:** none

**What reviewers like**

- ✅ Automatic saving functionality works well
- 📱 Useful for viewing PDFs on the go
- 🔄 Good for accessing Studio sessions
- 📊 Desktop version is powerful and feature-rich
- 🎯 Cleaner, more modern interface design

**What reviewers complain about**

- ❌ Massive feature loss compared to Revu for iPad
- 🐛 Frequent crashes and freezing issues
- 📉 Severely limited markup tools and capabilities
- 🖊️ Apple Pencil input is unresponsive and laggy
- 💾 Data loss and corruption issues

**Reported bugs**

- Markups fail to load or display correctly
- App deletes markups instead of saving them
- Documents wipe clean when reopened
- Files uploaded disappear from app
- Corrupted file errors when opening PDFs

**Requested features**

- Restore measurement and scaling tools
- Add custom toolsets and tool libraries
- Implement bookmarks for document navigation
- Enable image embedding in callouts
- Add undo/redo functionality


### Corabuild

[App page](https://appshunter.io/ios/app/corabuild/id6774769130)

This app streamlines jobsite project management for custom home builders and trades. It keeps teams aligned on files, tasks, schedules, and homeowner requests, whether in the office or on the go. Trades receive necessary information without chasing communications, while admins manage projects efficiently.

**Highlights:** Manage projects from office or jobsite, Organize project files (plans, photos, etc.), Provide trades fast access to job info, Receive notifications for updates and tasks, Access files offline, Assign and manage tasks, Coordinate schedules

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

**In-app purchases:** none


## Frequently asked questions

### Is Bluebeam free?

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

### Is Corabuild free?

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

### Which has better reviews, Bluebeam or Corabuild?

Corabuild is rated higher. Bluebeam averages 1.5 out of 5 from 392 ratings, while Corabuild averages 5.0 from 3 ratings.

### Do Bluebeam or Corabuild have ads?

Neither Bluebeam nor Corabuild shows ads.

### Which is updated more often, Bluebeam or Corabuild?

Bluebeam ships an update monthly, and Corabuild every 3 days. Most recently, Bluebeam was updated on October 20, 2026 and Corabuild on October 18, 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.*