Comparison

AWC Connection Calc vs Bluebeam

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AWC Connection Calc

Calculate capacities for various fasteners in wood connections, including single bolts, nails, and screws. Supports lateral and withdrawal capacities for wood-to-wood, wood-to-concrete, and wood-to-steel connections based on 2024 NDS standards.

Highlights
  • Calculate single bolt, nail, lag screw, and wood screw capacities
  • Determine lateral (single and double shear) capacities
  • Calculate withdrawal capacities
  • Supports wood-to-wood connections
  • Supports wood-to-concrete connections
  • Supports wood-to-steel connections
  • Based on 2024 NDS standards
Features
Read full description

Provides users with a mobile approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2024 NDS. Both lateral (single and double shear) and withdrawal capacities can be determined. Wood-to-wood, wood-to-concrete, and wood-to-steel connections are possible. LIMITS OF USE SCOPE AND LIMITATIONS Connection capacities are calculated on the basis of design provisions in the 2024 National Design Specification® for Wood Construction (NDS®). The calculated capacities are based on the following assumptions and conditions: · Bolts and lag screws must meet the requirements of ANSI/ASME B18.2.1, wood screws must meet the requirements of ANSI/ASME B18.6.1, and nails must meet the requirements of ASTM F1667. · Bolts, lag screws and wood screws must be installed in predrilled lead holes in accordance with the provisions of NDS Chapter 11. · Bolts, lag screws and wood screws must not be forcibly driven into connection members with a hammer or other impact device. · The faces of adjacent connection members are brought into contact when fasteners are installed. · Adequate edge distances, end distances and spacing must be provided for all fasteners to prevent splitting of wood connection members, in accordance with NDS Chapter 11. · Steel side plates with thickness of ¼ in. or greater must meet the requirements of ASTM A36, and steel side plates with thickness less than ¼ in. must meet the requirements of ASTM A653, Grade 33. · Concrete connection members must have compressive strength (fc') of at least 2500 psi. · The on-line Connection Calculator does not specifically address multiple-fastener connections. See NDS Chapters 10-11 and NDS Appendix E for applicable design provisions. · The on-line Connection Calculator does not address fasteners installed at an angle to grain (e.g., toe-nails). See NDS Chapters 10-11 for applicable design provisions. · The on-line Connection Calculator does not address fasteners subjected to combined lateral and withdrawal loading. See NDS Chapters 10-11 for applicable design provisions. · The on-line Connection Calculator does not address connections with gaps or non-structural spacer blocks between members. GENERAL STRUCTURAL GUIDELINES The quality of structural wood products and fasteners and the design of load-supporting members and connections shall conform to provisions of the NDS. The on-line Connection Calculator is based on design equations for lateral loading and withdrawal loading specified in NDS Chapters 10 and 11, along with fastener characteristics specified in NDS Appendix L. The NDS Commentary, NDS Appendices I through N, and NDS Chapters 12-13 provide additional guidelines regarding the design of connections in wood structures. RESPONSIBILITY FOR DESIGN While every effort has been made to insure the accuracy of the information presented, and special effort has been made to assure that the information reflects the state-of-the-art, neither the American Wood Council nor its members assume any responsibility for any particular design prepared from this on-line Connection Calculator. Those using this on-line Connection Calculator assume all liability from its use. This Connection Calculator is not meant to be a replacement for the NDS and does not encompass all of its design options. The American Wood Council On behalf of the industry it represents, AWC is committed to ensuring a resilient, safe and sustainable built environment. To achieve these objectives, AWC contributes to the development of sound public policies, codes and regulations that allow for the appropriate and responsible manufacture and use of wood products. We support the utilization of wood products by developing and disseminating consensus standards, comprehensive technical guidelines and tools for wood design and construction, as well as providing education regarding their application. Contact AWC via email: info@awc.org or connect with one of AWC’s regional building code experts.

About

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.

Highlights
  • Real-time PDF collaboration
  • Markup and annotation tools
  • Offline file access
  • Document syncing
  • Studio Project management
  • Live session joining
Features
Read full description

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.

Screenshots

AWC Connection Calc4 screens
Bluebeam4 screens

Verdict

The call

The clearest difference is rating: AWC Connection Calc at 2.5 against Bluebeam's 1.5. AWC Connection Calc also leads on update cadence (weekly vs monthly) and review sentiment (17% vs 3%). Bluebeam's advantage is ads (none vs shown) and ratings volume (406 vs 2). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

AWC Connection Calc holds the better App Store score, 2.5 against 1.5. That said, the two scores are not equally well evidenced: Bluebeam has 406 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 17% of AWC Connection Calc's written reviews are positive against 3% of Bluebeam's.

UpkeepUpdate frequency

AWC Connection Calc ships an update weekly, Bluebeam monthly. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 3 level
AWC Connection Calc versus Bluebeam: the parameters behind the verdict, then further details
ParameterAWC Connection CalcBluebeam
PriceFreeFree
Rating2.5 (2 ratings) — better1.5 (406 ratings)
Positive reviews16.7% of reviews — better2.9% of reviews
Number of ratings2406 — better
Update frequencyWeekly — betterMonthly
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.2 — better18.0
Further details — not scored
Size156 MB295 MB
Age rating17+4+
DeveloperAmerican Wood CouncilBluebeam, Inc.

Customer experience

AWC Connection Calc

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Bluebeam

All ratings406 ratings
Positive9.9%
Neutral2.0%
Negative88.2%
Written reviews240 reviews
Positive2.9%
Neutral2.9%
Negative94.2%

Bugs and requests

AWC Connection Calc

Not enough reviews yet to summarise bugs or 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
Show 23 more
  • 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
Show 20 more
  • 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

In-app purchases

None

AWC Connection Calc

No in-app purchases

None

Bluebeam

No in-app purchases

Questions

Is AWC Connection Calc free?
AWC Connection Calc is free to download, with no in-app purchases.
Is Bluebeam free?
Bluebeam is free to download, with no in-app purchases.
Which has better reviews, AWC Connection Calc or Bluebeam?
AWC Connection Calc is rated higher. AWC Connection Calc averages 2.5 out of 5 from 2 ratings, while Bluebeam averages 1.5 from 406 ratings.
Do AWC Connection Calc or Bluebeam have ads?
AWC Connection Calc shows ads; Bluebeam does not.
Which is updated more often, AWC Connection Calc or Bluebeam?
AWC Connection Calc ships an update weekly, and Bluebeam monthly. Most recently, AWC Connection Calc was updated on October 13, 2026 and Bluebeam on October 22, 2026.

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