Comparison

CompareShots vs 3D Model Viewer

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

Head to head
About

CompareShots

Easily compare two images side-by-side to check for exact matches or subtle differences. Adjust overlay opacity, switch between images with a tap, and even draw directly on the screen for detailed analysis. Share your findings with others.

Highlights
  • Side-by-side image display
  • Adjustable overlay opacity
  • Tap to switch images
  • On-screen drawing tools
  • Share comparison results
Features
Read full description

CompareShots is a tool that helps you compare screenshots and images. Simply select two images, and CompareShots will display them side by side. You can adjust the opacity of the overlay to determine if the images are an exact match. Alternatively, you can touch anywhere on the screen to switch between images. Additionally, if you need to focus on specific details, you can draw directly on the screen. CompareShots is useful when comparing mockups of websites or apps with their actual outcomes. This ensures that the work is pixel-perfect. Furthermore, you can share the results of your work in CompareShots with friends or colleagues.

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

Screenshots

CompareShots4 screens
3D Model Viewer4 screens

Verdict

The call

The clearest difference is review sentiment: CompareShots at 94% against 3D Model Viewer's 0%. CompareShots also leads on rating (5.0 vs 3.5) and in-app purchases (none vs 4). 3D Model Viewer's advantage is price (Free vs $3.99) and update cadence (every 4 days vs every 11 months). On ads, device support and iOS requirement 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

3D Model Viewer is free to download; CompareShots costs $3.99 up front. 3D Model Viewer sells 4 in-app purchases, starting at $2.99 per 7 days. CompareShots asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CompareShots holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews point the same way: 94% of CompareShots's written reviews are positive against 0% of 3D Model Viewer's.

UpkeepUpdate frequency

CompareShots ships an update every 11 months, 3D Model Viewer every 4 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 3 level
CompareShots versus 3D Model Viewer: the parameters behind the verdict, then further details
ParameterCompareShots3D Model Viewer
Price$3.99Free — better
Rating5.0 (3 ratings) — better3.5 (11 ratings)
Positive reviews94.4% of reviews — better0.0% of reviews
Number of ratings311 — better
Update frequencyEvery 11 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size6 MB15 MB
Age rating4++4
DeveloperSpace In BoxAriel Ortiz

Customer experience

CompareShots

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive94.4%
Neutral5.6%
Negative0.0%

3D Model Viewer

All ratings11 ratings
Positive63.6%
Neutral0.0%
Negative36.4%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

CompareShots

No 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

Questions

Is CompareShots free?
CompareShots costs $3.99, with no in-app purchases.
Is 3D Model Viewer free?
3D Model Viewer is free to download, with in-app purchases available.
Which has better reviews, CompareShots or 3D Model Viewer?
CompareShots is rated higher. CompareShots averages 5.0 out of 5 from 3 ratings, while 3D Model Viewer averages 3.5 from 11 ratings.
Do CompareShots or 3D Model Viewer have ads?
Neither CompareShots nor 3D Model Viewer shows ads.
Which is updated more often, CompareShots or 3D Model Viewer?
CompareShots ships an update every 11 months, and 3D Model Viewer every 4 days. Most recently, CompareShots was updated on October 9, 2026 and 3D Model Viewer on October 15, 2026.

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