Comparison

Files vs STL Viewer

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

Head to head
About

Files

Manage all your documents, spreadsheets, and media on your iPhone and iPad. This app facilitates downloading, storing, editing, and transferring files across devices and cloud services. It offers seamless integration with other iOS apps for enhanced productivity.

Highlights
  • Download, store, edit, create, and transfer files
  • Cloud synchronization with iCloud
  • Support for Dropbox, Google Drive, FTP, and Wi-Fi transfer
  • Integrated website downloader for videos and music
  • Seamless integration with other iOS apps
  • Organize media into folders
  • Create documents for email and web attachments
Features
Read full description

The all-in-one File Manager for iOS. Files allows you to easily download, store, edit, create, transfer, and manage documents, spreadsheets, and media on your iPhone and iPad. File synchronisation and backup can happen automatically across your devices using iCloud. Files support transfer of files using Dropbox, Google Drive, SkyDrive, FTP, Wifi, and many other protocols. Integrated downloader allows downloading from any website, including mp3, avi, mp4 and youtube videos. Files is tightly integrated with other iOS apps such as Safari, Mail and Pages so you can easily send files between your Apps. Using Files, you can easily create documents for use in emails, web site attachments, personal reminders. You can also use files to arrange your media files into folders, watch movies, play music, and achieve greater productivity on your iOS device. Files is a essential App for any regular iPhone and iPad user.

About

STL Viewer

Features
Read full description

View STL 3D models and prepare them for 3D printing on your iPhone or iPad. Built for makers, engineers, designers, and 3D printing enthusiasts who need to open, inspect, measure, and export 3D mesh files with precision. KEY FEATURES UNIVERSAL STL SUPPORT • STL (binary and ASCII) • High-poly mesh handling • Fast file opening from Files app, share sheet, or AirDrop • Direct import from Thingiverse, Printables, MakerWorld, and other 3D model sites PRECISION MEASUREMENT TOOLS • Distance measurement between any two points on the mesh • Angle measurement across three vertices • Bounding box with exact X, Y, Z dimensions • Measurement units: mm, cm, inches PROFESSIONAL 3D INSPECTION • Solid and wireframe render modes • Smooth orbit camera with pinch-to-zoom, pan, and rotate gestures • Floor grid overlay for scale reference • Customizable model color • Real-time lit shading with directional and ambient lighting EXPORT & SHARE • Export to OBJ, DAE, and DXF formats • Capture high-resolution screenshots of any view • Share directly to Prusa Slicer, Bambu Studio, Creality Print, and other slicers • Preserve mesh integrity across exports PERFECT FOR • 3D printer owners checking models before slicing • Engineers inspecting CAD exports as STL • Designers reviewing client meshes on the go • Makers browsing Thingiverse, Printables, MakerWorld files • Students learning 3D modeling and printing • Anyone who needs to view STL files without a desktop PRECISION VIEWER • Hardware-accelerated 3D rendering • Infinite pinch-to-zoom for detailed inspection • Smooth gesture controls for any model size • Handles models with hundreds of thousands of triangles PRIVACY FIRST • All processing happens entirely on-device • No internet connection required • Your files never leave your device • Works completely offline — 100% private and secure Download now and inspect your STL files with professional-grade precision. Privacy Policy: https://nagy-legal.vercel.app/stl-viewer/privacy.html

Screenshots

Files4 screens
STL Viewer4 screens

Verdict

The call

The clearest difference is update cadence: STL Viewer at every 8 days against Files's every 3 months. Files's advantage is iOS requirement (5.0 vs 15.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Files sells 3 one-off in-app purchases and STL Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Files ships an update every 3 months, STL Viewer every 8 days. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Files versus STL Viewer: the parameters behind the verdict, then further details
ParameterFilesSTL Viewer
PriceFreeFree
Rating4.4 (242 ratings) — better—
Positive reviews88.2% of reviews—
Number of ratings242 — better—
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS5.0 — better15.1
Further details — not scored
Size37 MB39 MB
Age rating4+12+
DeveloperSavy Soda Pty LtdMohamed Nagy

Bugs and requests

Files

Reported bugs

7 issues
  • App crashes when launched on certain iOS versions
  • Random deletion of documents without user action
  • Google Drive sync fails with 'Access denied' error
  • Files not displaying or downloading
  • Blank screen when downloading Google Docs
Show 2 more
  • App closes unexpectedly on older devices
  • Storage space warnings causing app deletion consideration

Requested features

10 requests
  • iOS 11 and above compatibility update
  • iPad 1 iOS 5.1.1 support
  • Document signing capability
  • Audio and video downloader functionality
  • Music playback while using other apps
Show 5 more
  • File sharing with other applications
  • MP3 file editing capability
  • Touch-based writing/drawing feature
  • System file access
  • Ability to play music in background

STL Viewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Files

One-time3
  • Large Spreadsheets$1.99
  • Enhanced Security$1.99
  • Remove Ads$3.99
1 purchases

STL Viewer

One-time1
  • Lifetime$12.99

Questions

Is Files free?
Files is free to download, with in-app purchases available.
Is STL Viewer free?
STL Viewer is free to download, with in-app purchases available.
Do Files or STL Viewer have ads?
Neither Files nor STL Viewer shows ads.
Which is updated more often, Files or STL Viewer?
Files ships an update every 3 months, and STL Viewer every 8 days. Most recently, Files was updated on November 11, 2026 and STL Viewer on October 31, 2026.

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