Bluebeam vs SKM Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bluebeam
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.
- Real-time PDF collaboration
- Markup and annotation tools
- Offline file access
- Document syncing
- Studio Project management
- Live session joining
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Bluebeam for iOS keeps you connected to your teams and documents, so you can quickly access the information you need in the field and capture what matters for the office. - Communicate with markups using tools like callouts, text, clouds, and status indicators - Import your team's custom Tool Sets from Revu, so your standardized markups are ready to go in the field, even offline - Attach photos captured in the field directly to a markup, so supporting documentation stays organized without cluttering your drawings - Open your files stored on your device, Studio Projects, or Studio Sessions - Join Studio Sessions for live collaboration. If your connection drops, your changes sync when you're back online - Check out files in Studio Projects to make edits, then check them back in when you're ready - Work offline by syncing Project files ahead of time or opening PDFs stored on your device Whether you’re reviewing submittals, placing markups in the field, or tracking revisions with your team, Bluebeam gives you the flexibility to get the job done from anywhere.
SKM Mobile
Capture field data, view study results, and manage equipment settings on your mobile device. Seamlessly import information to your desktop program and enhance your workflow with on-the-go access to essential project details.
- Field data collection
- View study results
- Import data to desktop
- Capture photos and videos
- Scan QR codes
- Scribble notes
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This SKM Mobile app requires a $299 USD/year subscription to use. Take SKM on the go! The SKM Mobile app provides an intuitive experience that lets you quickly and easily collect data from the field and seamlessly import it to your PTW desktop program! You can also view study results on your phone or tablet - such as what arc flash PPE to wear or to verify equipment settings! View onlines, take pictures, videos, scan QR codes, scribble notes, and more! Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. The current subscription may not be canceled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Terms of use: https://skm.com/terms-of-use.html Privacy policy: https://www.skm.com/privacy.html
Screenshots
Verdict
The clearest difference is rating: SKM Mobile at 3.0 against Bluebeam's 1.5. SKM Mobile also leads on iOS requirement (12.2 vs 18.0). Bluebeam's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 7 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SKM Mobile sells 1 in-app purchase, starting at $299.99 per year. Bluebeam asks for nothing beyond the download.
SKM Mobile holds the better App Store score, 3.0 against 1.5. That said, the two scores are not equally well evidenced: Bluebeam has 408 ratings behind it against 3, so its average is the more settled of the two.
Bluebeam ships an update monthly, SKM Mobile every 7 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | Bluebeam | SKM Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (408 ratings) | 3.0 (3 ratings) — better |
| Positive reviews | 2.9% of reviews | — |
| Number of ratings | 408 — better | 3 |
| Update frequency | Monthly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 295 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | Bluebeam, Inc. | S.K.M. SYSTEMS ANALYSIS, INC. |
Customer experience
Bluebeam
SKM Mobile
Bugs and requests
Bluebeam
Reported bugs
28 issues- 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
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- Keyboard disappears during login
- Selection boundaries too large, preventing precise markup selection
- Apple Pencil input stops working intermittently
- Pen tool produces no line output despite input
- App crashes when opening large file sets
- Session documents fail to load
- Blank PDF pages displayed
- Scaling doesn't work properly
- Blue screen errors
- Markups missing after checkout and checkin
- Incomplete markups syncing between devices
- App freezes during document checkin
- Unable to add users to sessions
- Projects not showing up in app
- App crashes when opening Studio sessions
- Drawings won't load or open
- Markup placement doesn't correspond to tap location
- PDF goes blank when inserting callouts
- Constant logout requiring re-authentication
- Links to details don't work
- App crashes on older iOS versions
- Audio communication issues
- File synchronization failures
Requested features
25 requests- 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
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- Support multiple PDF tabs simultaneously
- Create stamp library with standardized markups
- Add dimension markup capabilities
- Allow local PDF file access and import
- Full Studio session integration
- Improve Apple Pencil responsiveness and precision
- Add eraser tool for pen markups
- Enable photo capture and attachment to markups
- Support Dropbox and cloud storage integration
- Add form field editing capabilities
- Implement punch list and defect tracking
- Add RFI creation functionality
- Support for custom columns and data fields
- Reset viewpoints feature
- Pen width and cloud shape customization
- Settings menu for preferences
- Better pen and drawing mechanics like Notability
- Ability to download session documents to device
- Support for opening PDF attachments from desktop
- Batch file upload capability
SKM Mobile
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bluebeam
No in-app purchases
SKM Mobile
- SKM Mobile Subscription$299.991 Year









