Comparison

Sketch 3D vs Bulk Image Compressor

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

Head to head
About

Sketch 3D

Create and animate 3D models with intuitive touch controls. Import various file formats, apply video textures, and capture animations. Share your creations with a community of designers.

Highlights
  • Design 3D models with touch
  • Apply video as model texture
  • Create 3D model animations
  • Import various 3D file formats
  • Capture movie from 3D scenes
  • Use True Depth Camera for face models
  • Share designs with community
Features
Read full description

Sketch 3D is a tool for designing 3D models from your fingertips. You could download models from others, and could also share your great designs with other users by saving models in Public space. New Feature: Integrated MaterialX library into the app.   Mesh object can be applied with materialx documents. When Saving and Loading with material, the document relative path is stored as a diffuse map entry, similar to the way of handling movie textures. Other features like material adjustment and graph editing are not supported yet. User could download free material documents from public websites and import those zip files with this app, using ShareTo or AirDrop. Feature: Use True Depth Camera to capture face model. Feature: Support using video as model texture. You could use video clips from Photo Album, or from Internet URL (YouTube URL not supported), and then apply it onto a model as texture map. Feature: Capture movie from the 3D scene. Note! If your device could not capture movie, then, could try out a smaller output resolution (by tapping the control pane). However, arbitrary output size may stop capturing prematurely. Feature: Design 3D model animation with skeleton structure. You could design a skeleton structure by placing bones in hierarchical relation. Attach model to the skeleton, and then moving the bones to define different poses. Each pose represented as a keyframe in the timeline view. And animation sequence is produced by playing interpolation between the keyframes. Features: - Import 3D content directly from browser or email, either in .zip, .rar, .7z. - Support formats: Collada DAE, OBJ, 3DS, STL(for 3D printing), and others. - Import/export to iCloud drive, via iTune File Sharing, or to Public area via Apple CloudKit Service. - Supports AirDrop. - Support Quad faces. - Smooth surfaces using Subdivision. - Mirroring editing. - 2-fingers vertex movement, 3 or 4-fingers planar shape creation. - Versatile multi-touches drag-through-space gestures to support editing and changing viewing angle at the same time. - Flexible face strip drawing. - Stitching boundary faces. Stitch triangle soap into connected faces. Stitch over edge or vertex to form a larger face. - Stitching Triangles to Quads. - Loop Cut faces. - Bevel edges. - Extrude faces or edges. - Revolve (Spin). - Vertex Smoothing. - Vertex Slide along edges. - Crease Editing after mesh subdivision. - Split mesh from, or Join mesh to the editing one. - Support hierarchical mesh node structure. - Direct vertex color editing when texture map is not used. - Edit texture map UV coordinates, include atlas generation. - 3D Text generation. - Scene interaction with your created shape. - Design Animation with skeleton structure. - Capture movie from the 3D scene. - Support using video as model texture map.

About

Bulk Image Compressor

This app helps you save storage space by compressing image and video files. It supports multiple formats and allows batch compression with customizable quality settings. Ideal for photographers, social media users, and anyone managing large media libraries.

Highlights
  • Compresses JPG, PNG, BMP, MP4, MOV, and more
  • Batch compression for multiple files
  • Customizable compression quality
  • Quick and efficient processing
  • Intuitive user interface
  • Saves device storage space
Features
Read full description

Introducing the ultimate solution for efficient image management on your devices. This user-friendly app is designed to effortlessly compress various image and video formats, helping you save valuable storage space without compromising on quality. Whether you're a professional photographer, a social media enthusiast, or simply someone trying to organize a vast photo library, Bulk Image Compressor caters to all your needs. Key Features: - Versatile Compatibility: Works with a wide range of image and videos formats including JPG, PNG, BMP, MP4, MOV and more. - Batch Compression: Easily select and compress multiple images and videos simultaneously. - Customizable Quality: Choose your desired level of compression to balance image quality and file size. - Quick and Efficient: Compress images and videos quickly without losing crucial details. - Intuitive Interface: Simple and easy-to-navigate design, perfect for users of all skill levels. - Storage Management: Helps in reducing file size, which is essential for optimizing device storage. Download Bulk Image Compressor today and experience the most convenient way to manage and compress your images on the go!

Screenshots

Sketch 3D4 screens
Bulk Image Compressor2 screens

Verdict

The call

The clearest difference is rating: Bulk Image Compressor at 5.0 against Sketch 3D's 2.9. Bulk Image Compressor also leads on in-app purchases (none vs 2) and update cadence (daily vs every 6 weeks). Sketch 3D's advantage is ratings volume (443 vs 1) and chart position (#118 vs unranked). 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

Sketch 3D costs $2.99 and Bulk Image Compressor $0.99 up front. Sketch 3D sells 2 one-off in-app purchases. Bulk Image Compressor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bulk Image Compressor holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Sketch 3D has 443 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Sketch 3D ships an update every 6 weeks, Bulk Image Compressor daily. The most recent releases landed on September 26, 2026 and September 15, 2026 respectively.

Scorecard7 real differences · 4 level
Sketch 3D versus Bulk Image Compressor: the parameters behind the verdict, then further details
ParameterSketch 3DBulk Image Compressor
Price$2.99$0.99 — better
Rating2.9 (443 ratings)5.0 (1 ratings) — better
Positive reviews47.9% of reviews—
Number of ratings443 — better1
Update frequencyEvery 6 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#118 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.4 — better
Further details — not scored
Size188 MB23 MB
Age rating4+4+
DeveloperVictor NgKevin Hartmann

Customer experience

Sketch 3D

All ratings443 ratings
Positive41.1%
Neutral12.2%
Negative46.7%
Written reviews236 reviews
Positive47.9%
Neutral16.1%
Negative36.0%

Bulk Image Compressor

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

Bugs and requests

Sketch 3D

Reported bugs

3 issues
  • Crashes when trying to load or save projects
  • Texture and color issues when importing models
  • Unresponsive controls and buttons

Requested features

4 requests
  • In-app tutorials and video guides
  • Improved user interface and controls
  • Support for importing custom 3D models
  • Ability to save and load projects reliably

Bulk Image Compressor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Sketch 3D

One-time2
  • Unlimited Keyframe Editing$1.99
  • Unlimited Video Capturing$1.99
None

Bulk Image Compressor

No in-app purchases

Questions

Is Sketch 3D free?
Sketch 3D costs $2.99, and also offers in-app purchases.
Is Bulk Image Compressor free?
Bulk Image Compressor costs $0.99, with no in-app purchases.
Which has better reviews, Sketch 3D or Bulk Image Compressor?
Bulk Image Compressor is rated higher. Sketch 3D averages 2.9 out of 5 from 443 ratings, while Bulk Image Compressor averages 5.0 from 1 ratings.
Do Sketch 3D or Bulk Image Compressor have ads?
Neither Sketch 3D nor Bulk Image Compressor shows ads.
Which is updated more often, Sketch 3D or Bulk Image Compressor?
Sketch 3D ships an update every 6 weeks, and Bulk Image Compressor daily. Most recently, Sketch 3D was updated on September 26, 2026 and Bulk Image Compressor on September 15, 2026.

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