# Bluebeam vs S1 Timer

The clearest difference is review sentiment: S1 Timer at 38% against Bluebeam's 3%. S1 Timer also leads on rating (1.8 vs 1.5) and iOS requirement (11.0 vs 18.0). Bluebeam's advantage is update cadence (monthly vs every 4 months) and ratings volume (392 vs 19). 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.

S1 Timer holds the better App Store score, 1.8 against 1.5. That said, the two scores are not equally well evidenced: Bluebeam has 392 ratings behind it against 19, 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 38% of S1 Timer's.

Bluebeam ships an update monthly, S1 Timer every 4 months. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Bluebeam | S1 Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (392 ratings)](https://appshunter.io/ios/app/bluebeam/id1479484276/reviews) | **[1.8 (19 ratings)](https://appshunter.io/ios/app/s1-timer/id1541313597/reviews)** |
| Number of ratings | **392** | 19 |
| Positive reviews | 2.9% of reviews | **38.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | Free |
| Size | 288 MB | 31 MB |
| Requires iOS | 18.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bluebeam, Inc.](https://appshunter.io/developer/489696449) | [La Spaziale S.p.A.](https://appshunter.io/developer/1541313599) |

## 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


### S1 Timer

[App page](https://appshunter.io/ios/app/s1-timer/id1541313597)

Control your compatible coffee machine remotely via Bluetooth. Schedule automatic on/off times for specific days, allowing for up to three time slots per day. Enjoy convenience and ensure your machine is ready when you are.

**Highlights:** Bluetooth connectivity, Schedule on/off times, Set multiple daily time slots, Compatible with specific S1 models, Remote machine control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bluebeam free?

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

### Is S1 Timer free?

S1 Timer is free to download, with no in-app purchases.

### Which has better reviews, Bluebeam or S1 Timer?

S1 Timer is rated higher. Bluebeam averages 1.5 out of 5 from 392 ratings, while S1 Timer averages 1.8 from 19 ratings.

### Do Bluebeam or S1 Timer have ads?

Neither Bluebeam nor S1 Timer shows ads.

### Which is updated more often, Bluebeam or S1 Timer?

Bluebeam ships an update monthly, and S1 Timer every 4 months. Most recently, Bluebeam was updated on October 20, 2026 and S1 Timer on October 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.*