# Bluebeam vs CertusAlert

The clearest difference is rating: CertusAlert at 5.0 against Bluebeam's 1.5. CertusAlert also leads on update cadence (every 10 days vs monthly). Bluebeam's advantage is ratings volume (392 vs 1) and iOS requirement (18.0 vs 26.5). 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.

CertusAlert 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 1, so its average is the more settled of the two.

Bluebeam ships an update monthly, CertusAlert every 10 days. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Bluebeam | CertusAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (392 ratings)](https://appshunter.io/ios/app/bluebeam/id1479484276/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/certusalert/id6790866599/reviews)** |
| Number of ratings | **392** | 1 |
| Positive reviews | 3.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free | Free |
| Size | 288 MB | 3 MB |
| Requires iOS | **18.0** | 26.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Bluebeam, Inc.](https://appshunter.io/developer/489696449) | [Darrell Iehle](https://appshunter.io/developer/6789659622) |

## 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


### CertusAlert

[App page](https://appshunter.io/ios/app/certusalert/id6790866599)

Receive real-time, customizable Building Management System (BMS) alarm messages. Prioritize notifications and automatically sort messages into color-coded folders based on keywords.

**Highlights:** Customizable BMS alarm messaging, Real-time notifications, Priority filtering for alerts, Automatic message sorting, Color-coded folders, Keyword-based sorting

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bluebeam free?

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

### Is CertusAlert free?

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

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

CertusAlert is rated higher. Bluebeam averages 1.5 out of 5 from 392 ratings, while CertusAlert averages 5.0 from 1 ratings.

### Do Bluebeam or CertusAlert have ads?

Neither Bluebeam nor CertusAlert shows ads.

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

Bluebeam ships an update monthly, and CertusAlert every 10 days. Most recently, Bluebeam was updated on October 2, 2026 and CertusAlert on September 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.*