Comparison

3D Model Viewer vs Prelim360

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

Head to head
About

3D Model Viewer

Easily view and interact with 3D models in various formats like USDZ, STL, and OBJ. Explore your designs with intuitive gestures, high-performance rendering, and augmented reality capabilities. Record animations of your models for sharing.

Highlights
  • View USDZ, STL, OBJ, PLY files
  • Intuitive gesture controls
  • High-performance rendering
  • Augmented Reality (AR) visualization
  • Record rotation animations
  • Supports OBJ with textures
Read full description

3D Model Viewer: STL & USDZ - Transform Your Experience with 3D Visualization! Key Features: - Seamless Viewing: Effortlessly open and explore .usdz, .usd, .obj, .stl, .ply files with stunning clarity and detail. Experience 3D models like never before! - User-Friendly Interface: Navigate through your 3D models with simple gestures. Rotate, zoom and pan. - High Performance: Enjoy smooth and fast rendering, ensuring an optimal viewing experience for complex models. - AR Viewer: Visualize your models in AR. - Record: Record the scene with a rotation animation. You can upload .obj with textures, you need to create a zip file with the textures and the .mtl file. Download 3D Model Viewer: STL & USDZ today and step into the future of 3D visualization! Transform the way you see and share your creative ideas. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. - Terms & conditions https://sites.google.com/view/usdz3dviewer/home/termsandconditions

About

Prelim360

Features
Read full description

Prelim360.ai helps adjusters complete and submit NFIP Preliminary Reports directly from the field using a simple phone app." • Save time • Reduce office work • Get more claims Complete Reports On-Site Fill out NFIP Preliminary Reports and Advance Payment Request Forms Flexible Submission Options Easily input required information using your iPhone with a user-friendly, easy to use interface. Photo Integration Seamlessly capture, label, and attach photos directly within the app for efficient integration. FCN Card Attachment Seamlessly include your FCN card with submissions for quick, secure, and compliant report processing.

Screenshots

3D Model Viewer4 screens
Prelim3604 screens

Verdict

The call

The clearest difference is in-app purchases: Prelim360 at none against 3D Model Viewer's 4. Prelim360 also leads on iOS requirement (15.6 vs 17.0). 3D Model Viewer's advantage is update cadence (every 4 days vs every 2 months). On price, ads 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. 3D Model Viewer sells 4 in-app purchases, starting at $2.99 per 7 days. Prelim360 asks for nothing beyond the download.

UpkeepUpdate frequency

3D Model Viewer ships an update every 4 days, Prelim360 every 2 months. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
3D Model Viewer versus Prelim360: the parameters behind the verdict, then further details
Parameter3D Model ViewerPrelim360
PriceFreeFree
Rating3.5 (11 ratings) — better
Positive reviews0.0% of reviews
Number of ratings11 — better
Update frequencyEvery 4 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size15 MB43 MB
Age rating4+4+
DeveloperAriel OrtizAlcazar, LLC

In-app purchases

4 purchases

3D Model Viewer

Subscriptions3
  • All Access$2.997 Days
  • All Access3 Days trial$3.991 Month
  • All Access$14.991 Year
One-time1
  • One-time payment$3.99
None

Prelim360

No in-app purchases

Questions

Is 3D Model Viewer free?
3D Model Viewer is free to download, with in-app purchases available.
Is Prelim360 free?
Prelim360 is free to download, with no in-app purchases.
Do 3D Model Viewer or Prelim360 have ads?
Neither 3D Model Viewer nor Prelim360 shows ads.
Which is updated more often, 3D Model Viewer or Prelim360?
3D Model Viewer ships an update every 4 days, and Prelim360 every 2 months. Most recently, 3D Model Viewer was updated on September 23, 2026 and Prelim360 on September 9, 2026.

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