Comparison

BIMx vs Sketch Viewer UP

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

Head to head
About

BIMx

Explore and collaborate on architectural BIM projects with interactive 3D models and linked documentation. Visualize designs, access BIM data, and streamline communication between the construction site and office.

Highlights
  • Interactive 2D & 3D BIM model exploration
  • Linked 2D documentation and 3D views
  • Access BIM element data
  • On-site collaboration tools
  • Game-like 3D navigation
  • Real-time 3D cutaways
  • Measure in 3D and 2D
Read full description

Graphisoft’s BIMx is an interactive app for exploring BIM projects and linked documentation sets created in Archicad, MEP Designer, and DDScad. Please download to visualize or collaborate on architectural design projects on your mobile device(s). BIMx offers professional building visualization with game-like navigation to explore and visualize architectural projects. BIMx features the ‘BIMx hyper-model’ – allowing non-design professionals to explore and fully understand architectural design intent, view project deliverables, and access element-level BIM data. BIMx links the 3D model with the relevant 2D documentation layouts, providing a seamless way to view the 3D cutaway model in the context of a 2D layout — and vice versa. BIMx connects the construction site with the architect’s office for streamlined collaboration. Real-time model cut-throughs, in-context measuring, and project markups in the model context make BIMx your best on-site BIM companion. Drive the design narrative on the building site for fast, specific client feedback. Features: • Hyperlinked 2D & 3D views with interactive markers • Trace 2D drawings on 3D with animation • Access project and building component-related BIM information • Superfast 2D documentation viewer • Game-like 3D navigation • Gravity & Egress recognition • Option to access a Hyper-model element from outside of the app • Google Cardboard VR support on iPhones • Real-time 3D cutaway • Cut Plane Color Picker • Shading options • Shadow casting • Sun positioning by date and time • Measure in 3D and on 2D layouts • Explore 3D models of any size thanks to the streaming 3D engine • Save Favorites • Create compelling presentations • Print support, PDF export • Keyboard, mouse, and gamepad support BIMx Pro features, available with Graphisoft account-based licensing: • Issue creation – BCF-based documentation revisioning • Hide 3D elements and control Layer visibility in the virtual model • Customizable Cut Plane Explore the BIMx Pro features with the built-in demo model. Joining BIMcloud in Hyper-models published from Teamwork projects unlocks messaging and Pro features. View our Terms of Use: https://graphisoft.com/legal/terms-of-use/bimx-ios and Privacy Policy: https://graphisoft.com/legal/privacy-policy Send your comments and suggestions to bimx@graphisoft.com!

About

Sketch Viewer UP

This application allows users to import and view 3D models from various professional design software. It supports a wide range of file formats, making it convenient for designers, engineers, and students to access and analyze 3D drawings on their mobile devices.

Highlights
  • Import and view 3D drawings
  • Supports multiple professional 3D file formats
  • Collection of standard industry libraries
  • Mobile 3D viewing software
  • Professional CAD drawing and modeling
Features
Read full description

Sketch Up is a professional browsing software for 3D models 1. Professional software for designers, artists, scholars, students, teachers, engineering drafters, and engineers 2. A complete collection of standard libraries in various industries 3. Support importing and viewing 3D drawings, fast and convenient. 4. Multiple format support, including SolidWorks, ProE/Creo, sview, CATIA, Fbx, Ifc, Inventor, JT, Parasolid, PDMS, Rhino, U3D, UG, CGR, maya, LightWave mainstream format software, analysis and browsing dae, max , 3ds, obj, ABC, FBX, DAE, OBJ, BVH, DXF, PSK, STL, PLY, X3D, JCD, svp. At the same time, SU Sketch Master supports mobile phone 3D viewing software, providing SU, skp, Sketch Up, sketch, 3d model, 3D modeling, 3D, drawings, CAD, DWG, ability to view drawings. Professional CAD drawing and modeling! Privacy Policy: https://kdocs.cn/l/coraO45x7Hrz User Agreement: https://kdocs.cn/l/ciYVcrmHDELu

Screenshots

BIMx4 screens
Sketch Viewer UP4 screens

Verdict

The call

The clearest difference is review sentiment: BIMx at 60% against Sketch Viewer UP's 0%. BIMx also leads on rating (4.0 vs 1.6) and in-app purchases (none vs 3). Sketch Viewer UP's advantage is update cadence (every 9 days vs every 5 weeks) and iOS requirement (13.0 vs 16.0). On price, ads, monetization model 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. Sketch Viewer UP sells 3 one-off in-app purchases. BIMx asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BIMx holds the better App Store score, 4.0 against 1.6. That said, the two scores are not equally well evidenced: BIMx has 167 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 60% of BIMx's written reviews are positive against 0% of Sketch Viewer UP's.

UpkeepUpdate frequency

BIMx ships an update every 5 weeks, Sketch Viewer UP every 9 days. The most recent releases landed on September 24, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
BIMx versus Sketch Viewer UP: the parameters behind the verdict, then further details
ParameterBIMxSketch Viewer UP
PriceFreeFree
Rating4.0 (167 ratings) — better1.6 (10 ratings)
Positive reviews59.8% of reviews — better0.0% of reviews
Number of ratings167 — better10
Update frequencyEvery 5 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size175 MB40 MB
Age rating4+17+
DeveloperGraphisoft SE骁宇 陈

Customer experience

BIMx

All ratings164 ratings
Positive75.0%
Neutral3.0%
Negative22.0%
Written reviews122 reviews
Positive59.8%
Neutral8.2%
Negative32.0%

Sketch Viewer UP

All ratings10 ratings
Positive10.0%
Neutral10.0%
Negative80.0%
Written reviews8 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

BIMx

Reported bugs

3 issues
  • Issues with downloading and opening models
  • Compatibility problems with newer iOS versions
  • Inconsistent rendering and color issues

Requested features

4 requests
  • Ability to annotate and markup models
  • Support for more CAD file formats beyond ArchiCAD
  • Improved camera controls and navigation
  • Integration with desktop ArchiCAD software

Sketch Viewer UP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

BIMx

No in-app purchases

3 purchases

Sketch Viewer UP

One-time3
  • 一季度会员$9.99
  • 一年会员$24.99
  • 永久会员$29.99

Questions

Is BIMx free?
BIMx is free to download, with no in-app purchases.
Is Sketch Viewer UP free?
Sketch Viewer UP is free to download, with in-app purchases available.
Which has better reviews, BIMx or Sketch Viewer UP?
BIMx is rated higher. BIMx averages 4.0 out of 5 from 167 ratings, while Sketch Viewer UP averages 1.6 from 10 ratings.
Do BIMx or Sketch Viewer UP have ads?
Neither BIMx nor Sketch Viewer UP shows ads.
Which is updated more often, BIMx or Sketch Viewer UP?
BIMx ships an update every 5 weeks, and Sketch Viewer UP every 9 days. Most recently, BIMx was updated on September 24, 2026 and Sketch Viewer UP on June 1, 2026.

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