Comparison

BIMx vs Cost Lenz

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

Cost Lenz

Easily track project costs, budgets, and invoices by importing spreadsheets, PDFs, or photos. Monitor contracts, change orders, and payments to stay on budget and avoid surprises. Get summary views for stakeholders and manage projects on the go.

Highlights
  • Import budgets from spreadsheets, PDFs, and photos
  • Log contracts and change orders
  • Track invoices and payments
  • View budgeted, committed, paid, and remaining costs
  • See over/under budget by line and category
  • Summary views for owners and lenders
Features
Read full description

Cost Lenz is simple project cost tracking for budgets, contracts, invoices, and closeout. Import a budget by uploading a spreadsheet, PDF, or photo—Cost Lenz reads it and sets up your project with your cost codes. Then log contracts and change orders, track invoices and payments, and see what’s budgeted, committed, paid, and remaining in one place. WHY COST LENZ • Import budgets from Excel, PDFs, photos, and more—just add the file or image • Keep your cost codes and project structure • Track contracts, change orders, and invoices together • See over/under budget by line and by category • Summary views for owners, lenders, and closeout • Works on iPhone and iPad; billing managed on the web BUILT FOR REAL PROJECTS Whether you’re running one job or many, Cost Lenz helps you see where the money is going so you can stay on budget and avoid surprises. Start with a free trial on the web, then use the app to manage your projects on the go. Questions? Email support@costlenz.com

Screenshots

BIMx4 screens
Cost Lenz4 screens

Verdict

The call

The clearest difference is rating: Cost Lenz at 5.0 against BIMx's 4.0. Cost Lenz also leads on update cadence (every 5 days vs every 6 weeks) and monetization model (free vs free with in-app purchases). BIMx's advantage is ratings volume (168 vs 1). On price, ads, 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

Cost Lenz holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: BIMx has 168 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BIMx ships an update every 6 weeks, Cost Lenz every 5 days. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
BIMx versus Cost Lenz: the parameters behind the verdict, then further details
ParameterBIMxCost Lenz
PriceFreeFree
Rating4.0 (168 ratings)5.0 (1 ratings) — better
Positive reviews59.8% of reviews—
Number of ratings168 — better1
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size175 MB8 MB
Age rating4+4+
DeveloperGraphisoft SECost Lenz

Customer experience

BIMx

All ratings168 ratings
Positive74.4%
Neutral3.0%
Negative22.6%
Written reviews122 reviews
Positive59.8%
Neutral8.2%
Negative32.0%

Cost Lenz

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Cost Lenz

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

BIMx

No in-app purchases

None

Cost Lenz

No in-app purchases

Questions

Is BIMx free?
BIMx is free to download, with no in-app purchases.
Is Cost Lenz free?
Cost Lenz is free to download, with no in-app purchases.
Which has better reviews, BIMx or Cost Lenz?
Cost Lenz is rated higher. BIMx averages 4.0 out of 5 from 168 ratings, while Cost Lenz averages 5.0 from 1 ratings.
Do BIMx or Cost Lenz have ads?
Neither BIMx nor Cost Lenz shows ads.
Which is updated more often, BIMx or Cost Lenz?
BIMx ships an update every 6 weeks, and Cost Lenz every 5 days. Most recently, BIMx was updated on November 1, 2026 and Cost Lenz on October 29, 2026.

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