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Category Price Seller Device
Productivity Free IMSI/Design iPhone, iPad, iPod

The TurboViewer family of lightning-fast view, markup, and sharing apps are powerful and innovative... the first mobile DWG™ & PDF viewers and markup that support both 2D and 3D... and a Macworld/iWorld's Top 5 App award winner.

Built from the ground up -- and specifically optimized for smart devices -- TurboViewer sets the standard for mobile AEC viewing and markup.


There are three TurboViewer apps:

• TurboViewer (FREE)
• TurboViewer X ($6.99)
• TurboViewer Pro (Limited time special $19.99)


Highlights include [differences designated below]:


• AutoShapes: Drawing rough shapes with your finger automatically refines to accurate geometry
• Redmark tools: Markup 2D and 3D objects using line, circle, rectangle, revision cloud, text, rectangular text box and leader


• Contact Management built on top of native Contacts (so all current contact info is available)
• Organize contacts into Groups for easy "one tap" sending of shared drawings or documents to large design and construction teams


• Lightning-fast 2D and 3D environment
• Smooth multi-touch navigation; Pan, zoom, and 3D orbit effortlessly around document
• Hidden line, shaded, and wireframe viewing
• Isometric view
• AutoCAD® SHX font support - Localized or custom SHX fonts
• TrueType font support - Improved visual fidelity with native TTF font file support
• Option to use default or model lights (if any in drawing)
• Option to render both inside and outside model (force two-sided rendering)
• Supports AutoCAD linetypes - Maintain visual fidelity as intended
• [Pro] Realistic (materials), x-ray, gray scale, and shaded without outline
• [Pro] Adjust edge color range from white-gray-black
• [Pro] Adjust x-ray transparency factor
• [Pro] Custom perspective view - View 3D models in realistic perspective angles (human eye perspective or specify custom camera lens sizes in mm)
• [Pro] Layer Manager - Layer view manager to turn layers on/off, invert layers
• [Pro] Layout support - View model space and paper space layouts


• Create sub-folders
• Cut/Copy/Paste/Rename files and folders
• Search files and folders by name, size, and date
• Sort by name, size, and date (ascending or descending)
• Send files to other apps using copy, AirDrop, Message, and Mail
• Diagnostic for missing xref and fonts


• Restore saved AutoCAD views - Quickly display the best vision of your design
• Tactile sound feedback - Sound confirmation for button and UI item selection
• Autosense for 2D or 3D drawings - Option to automatically set appropriate gesture navigation of a drawing or model
• Option to use two fingers to 3D rotate/tumble or constrain orbit
• Unique time-savers - Able to navigate full-screen preview during file load; Cancel errant file load
• [Pro and X] Banner free


• 2D and 3D DWG (AutoCAD® and AutoCAD LT®), DXF, DWF, DWFx, and TCW
• 2D PDF (single and multiple page)
• Import/Export support for mail, iCloud, Web downloads, Dropbox, Box, etc.
• Online wiki help system
• Forum support
• [Pro] Other popular AEC file formats translated in the cloud including 2CD, 3DM, 3DS, ASAT, CGM, DCD, DGN, EPS, FCW, IGS, OBJ, PLT, SAT, SKP, STEP, STL, STP, TCW, and WRZ
• [Pro] Cloud conversion server (detect user location)
• [Pro] 12-month premium telephone support
• [Pro] 12-month premium email support

The TurboViewer series works on iPad and iPhone.

Note: Trouble with TurboViewer? Please visit our support forum or contact us directly, problems may be easily resolved by our support team!


Pdf mark ups

Can you make mark ups on PDFs notes highlight circles arrows and send those notes to others?

Almost completely useless

Only views tcws as-is. Can’t even select objects to get dimensions.

Inbox failure.

Does not open DWG from INBOX. Transferred ok from mail program. When touched to open from inbox of TurboViewer, program closed.

Partial Load
Waiting for next release

Only loaded some of the 3d model elements from mail attachment & Dropbox. Promising but unusable without complete model.

Kelly Surveying

5 star because I know what the pro version will be capable of and this free...FREE app is very impressive for what's to come. Great for showing clients on site what their GPS model actually looks like in 3D

Thank you!

Excellent app. This app is free and people are giving bad reviews don't complain in a review email them!! Outstanding job guys!! Does what it says and works good for my business.

Works Great!
Tim Pate

Great interface... I use Mechanical Desktop. Only runs 3D wireframes, but the fluid movement of my models are perfect! I cannot wait till the models can be shaded with surfaces. That will help me with presentations on the fly!


I use Chief Architect for designing homes. Now I can let customers view plans off my iPad. Great app. Can't wait for pro version...

Support for Sketchup Needed

I could not locate a place to submit questions or comments elsewhere. Needs to support viewing of Google Sketchup 3D files, maybe even Visio 2D. Then, there would not be enough stars on which to rate the app!


I just downloaded a few . DWG's from my desktop using the AirShare app from Avatron, and I couldn't believe how well TurboViewer displayed them! The speeds are fantastic and the display movements are completely fluid, even with a very complex drawing. Thank you for this free version; I'm really looking forward to the Pro version, so I can see everything rendered realistically with shading. I hope it has support for the iPhone HDMI adapter so I can use it for presentations.

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