BIMx vs Cost Lenz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | BIMx | Cost Lenz |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (168 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 59.8% of reviews | — |
| Number of ratings | 168 — better | 1 |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 175 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Graphisoft SE | Cost Lenz |
Customer experience
BIMx
Cost Lenz
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
BIMx
No in-app purchases
Cost Lenz
No in-app purchases









