Best Zstl Apps

206+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

Every iPhone needs a few good zstl apps. We benchmark 206+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Zstl Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1STL Simple ViewerSTL Simple ViewerFree4.3★ (923)YesYesNov 2026
2Thingiverse Printables | 3D GOThingiverse Printables | 3D GOFree4.7★ (4.1K)NoYesNov 2026
3Creality Cloud - 3D PrintingCreality Cloud - 3D PrintingFree4.6★ (7.2K)NoYesNov 2026
4STL File Viewer ProSTL File Viewer ProFree4.5★ (81)YesYesNov 2026
5Autodesk FusionAutodesk FusionFree4.5★ (4.1K)NoNoOct 2026
6STL MasterSTL MasterFree4.2★ (51)NoNoOct 2026
73D Model Viewer - AR & Print3D Model Viewer - AR & PrintFree4.4★ (363)NoYesNov 2026
83D Modeling, Design: Shapeyard3D Modeling, Design: ShapeyardFree4.5★ (5.7K)NoYesNov 2026

Top Picks for Zstl

STL Simple Viewer#1

STL Simple Viewer by Victor Bovio

View STL, 3MF & DXF 3D models
Editor's Choice
📊 Productivity
4.3😞(923 ratings)
FreeAdsIn-App Purchases
STL Simple Viewer screenshot 1
STL Simple Viewer screenshot 2
STL Simple Viewer screenshot 3
STL Simple Viewer screenshot 4

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

What We Love

  • 🚀 Simple and intuitive viewer
  • 👍 Useful viewing options
  • 💡 Supports multiple file formats

Room to Improve

  • 🐛 Frequent crashes
  • 🔋 High battery consumption
  • 🚨 Excessive and intrusive ads
  • 🔍 Limited functionality for larger files
Thingiverse Printables | 3D GO#2

Thingiverse Printables | 3D GO by SimpleDev LLC

3D Printing: STL Viewer Slicer
Strong Contender
🔧 Utilities
4.7😐(4.1K ratings)
FreeIn-App Purchases
Thingiverse Printables | 3D GO screenshot 1
Thingiverse Printables | 3D GO screenshot 2
Thingiverse Printables | 3D GO screenshot 3
Thingiverse Printables | 3D GO screenshot 4
Thingiverse Printables | 3D GO screenshot 5
Thingiverse Printables | 3D GO screenshot 6

This app consolidates 3D model searching, viewing, and slicing from major platforms into a single interface. It allows users to find, preview, organize, and prepare STL files for 3D printing, streamlining the entire workflow.

What We Love

  • 👍 Convenient and free app
  • 🚀 Great database of free files
  • 🚀 Easy to send prints directly to printer
  • 👍 Helpful developer response
  • 🚀 Seamless switching between sites

Room to Improve

  • 💰 Subscription required for full access
  • 🐛 Buggy app with crashes and freezes
  • 🚫 Inaccessible for smaller screens
  • 🚫 Limited functionality compared to websites
  • 🚫 Files saved as zips are inconvenient
4.6😊(7.2K ratings)
FreeIn-App Purchases
Creality Cloud - 3D Printing screenshot 1
Creality Cloud - 3D Printing screenshot 2
Creality Cloud - 3D Printing screenshot 3
Creality Cloud - 3D Printing screenshot 4
Creality Cloud - 3D Printing screenshot 5

This platform connects 3D printing enthusiasts with a vast model library, cloud slicing, and remote printer management. Users can explore designs, earn rewards for their creations, and engage with a global community of makers.

What We Love

  • 🚀 Easy to use
  • 👍 Intuitive interface
  • 🔍 Vast model library
  • 🌐 Remote printing and monitoring
  • 💡 Integrated slicer and scanner
  • 🤝 Supportive community

Room to Improve

  • 🐛 Connectivity issues
  • 🔍 Limited customization options
  • 💰 Paid features and subscriptions
  • 🤖 Unreliable AI support
  • 📱 Suboptimal iPad experience

More Zstl apps to explore

FAQ about Zstl

What are the best zstl apps for iPhone?
STL Simple Viewer tops our zstl apps ranking as of June 2026, with a 4.3-star average from 923 App Store ratings, and it's free to download.
Yes — 20 of the top zstl apps we rank are free to download, including STL Simple Viewer and Thingiverse Printables | 3D GO.
STL Simple Viewer shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 206+ zstl apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.

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