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Last updated on: 2026-06-25
Android Apps > Tools > Fast STL Viewer
Fast STL Viewer icon

Fast STL Viewer

2.71
Fast STL Viewer
3.05
4,073 reviews
1,000,000+
Downloads
Free

Inspect & measure STL files — wall thickness, printability, cross-sections.

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About Fast STL Viewer

Fast STL Viewer is a tools app developed by Fast STL Viewer.

Download Statistics

Fast STL Viewer has been downloaded 1.5 million times. In the last 30 days, the app was downloaded 18 thousand times.

User Ratings

Fast STL Viewer is rated 3.05 out of 5 stars. The rating is based on 4.1 thousand ratings.

App Information

Fast STL Viewer is FREE to download. The APK download size is 14.59 MB. The latest version available is 2.71. The last update was on May 10, 2026.

Technical Requirements

Fast STL Viewer requires Android 7.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2015.

Description
Professional STL inspection and measurement on Android.
Show more

More data about Fast STL Viewer

Price Free to download
Total downloads 1.5 million
Recent downloads 18 thousand
Rating 3.05 based on 4.1 thousand ratings
Ranking Not ranked
Version 2.71
APK size 14.6 MB
Number of libraries 48
Designed for Android 7.0+
Suitable for Everyone
Ads Contains ads

App Performance Report

Get a detailed PDF report for Fast STL Viewer with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

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Fast STL Viewer compared with similar apps

Common keywords of similar apps

Thickness Wall Point Cross Geometry Inspect Printability Inspection Mesh Verify Dimensions Sections Analysis Checks Surface Thin Points Color Normals Adjustable Wireframe Distance Volume Area Dental Medical Jewellery Heatmap Walls Failures Coded Edges Flipped Triangles Directly Catch Material Normal Stl Files Open File Measure Tools Pro Print Viewer Measurement Device Model

Keywords missing from this app

Models Level Printing App Bubble Free Ruler View Support Printer Features Camera Code Home Mobile Obj Angle Cad Recent Design Interface Tool Mode Easily User Object Measurements Dwg Real Accurate Time Experience Advanced Thinger Thingiverse Professional Precision Drawing

Google Play Rating history and histogram

Downloads over time

Fast STL Viewer has been downloaded 1.5 million times. Over the past 30 days, it averaged 590 downloads per day.

Changelog of Fast STL Viewer

Show changelog

Developer information for Fast STL Viewer

Fast STL Viewer

support@fast-stl.com

Website

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Comments on Fast STL Viewer for Android

★★★★☆ Mark C · Dec 17, 2025
Great App!!! Please consider adding a 'Lifetime' payment option to remove all restrictions etc. No idea how others like to play, but unfortunately, I will not pay for any App on a subscription basis. Thank you! 👍🏼👍🏼👍🏼
★★★★☆ kent r · Aug 10, 2025
I'm only 4 stars. Free app. Because I'm unhappy .why did they delete the item dimensions that used to show at lower right when item selected. Was helpful information! Please bring it back!
★★★★★ Adam Albanese · Mar 7, 2026
Works well. Don't use it much but its simple and the ads are quietly at the top if you're looking for a free viewer.
★★★★★ Victor Ballard · Dec 19, 2025
It's exactly what it says, a stl viewer
★☆☆☆☆ Deepak kumar · Apr 18, 2026
It shows basic stl file and every time it is opened it plays a video with audio ad and quote literally even if I view one file after another for each file it shows ads. Ridiculous to use for free viewer. EDIT : For response from developers, then there is a bug in the code it's really popping for me every time I open the file. It's a nightmare. Also, we open files from files app sometimes and the app probably considers them as closing and reopening. You will lose every download with your response.
★☆☆☆☆ Chanda117 · Apr 2, 2026
I liked using this app to view stls, but now I'm getting long ads every time I open a file to view it. Very annoying and had to uninstall.

Google Play Rankings for Fast STL Viewer

This app is not ranked

Technologies used by Fast STL Viewer

Fast STL Viewer is requesting 13 permissions and is using 48 libraries.

Permissions

Development tools
test access to protected storage
Network communication
view network connections, full network access, Google Play billing service
System tools
prevent phone from sleeping
Extra
android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, android.permission.ACCESS_ADSERVICES_TOPICS, android.permission.FOREGROUND_SERVICE, android.permission.MANAGE_EXTERNAL_STORAGE, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.google.android.gms.permission.AD_ID, com.performance.meshview.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Ad network libraries

AdMob Android Library IconAdMob Open Measurement Android Library IconOpen Measurement InMobi Android Library IconInMobi

Social libraries

None found

Development tools

Android Jetpack core Android Library IconAndroid Jetpack core Android Architecture Components Android Library IconAndroid Architecture Components Android Jetpack VersionedParcelable Android Library IconAndroid Jetpack VersionedParcelable Android Jetpack Annotations Android Library IconAndroid Jetpack Annotations Firebase Android Library IconFirebase Android Jetpack Widgets Android Library IconAndroid Jetpack Widgets Android Jetpack AppCompat Android Library IconAndroid Jetpack AppCompat AndroidX Activity Android Library IconAndroidX Activity Android Activity Saved State Android Library IconAndroid Activity Saved State AndroidX Loader Android Library IconAndroidX Loader Android Transition Support Library Android Library IconAndroid Transition Support Library Android Support Library collections Android Library IconAndroid Support Library collections Kotlin Android Library IconKotlin Android Support VectorDrawable Android Library IconAndroid Support VectorDrawable AndroidX Legacy: Support Library core utils Android Library IconAndroidX Legacy: Support Library core utils AndroidX Cursor Adapter Android Library IconAndroidX Cursor Adapter AndroidX Local Broadcast Manager Android Library IconAndroidX Local Broadcast Manager Android Support Library Print Android Library IconAndroid Support Library Print AndroidX App Startup Android Library IconAndroidX App Startup Android Support Library Document File Android Library IconAndroid Support Library Document File Android WorkManager Android Library IconAndroid WorkManager AndroidX Widget ViewPager2 Android Library IconAndroidX Widget ViewPager2 Okio Android Library IconOkio AndroidX Concurrent Futures Android Library IconAndroidX Concurrent Futures JetBrains Annotations Android Library IconJetBrains Annotations AndroidX Emoji / Emoji2 Android Library IconAndroidX Emoji / Emoji2 IntelliJ IDEA Android Library IconIntelliJ IDEA AndroidX Tracing Android Library IconAndroidX Tracing AndroidX SQLite Android Library IconAndroidX SQLite AndroidX ExifInterface Android Library IconAndroidX ExifInterface AndroidX ProfileInstaller Android Library IconAndroidX ProfileInstaller AndroidX DynamicAnimation Android Library IconAndroidX DynamicAnimation Chromium Android Library IconChromium Google Guava Android Library IconGoogle Guava AndroidX Inspection Android Library IconAndroidX Inspection Picasso Android Library IconPicasso AndroidX Resource Inspection Android Library IconAndroidX Resource Inspection AndroidX WebKit Android Library IconAndroidX WebKit Jetpack DataStore Android Library IconJetpack DataStore The Checker Framework Android Library IconThe Checker Framework AndroidX Privacy Sandbox Android Library IconAndroidX Privacy Sandbox Kotlin Parcelize Android Library IconKotlin Parcelize AndroidX Graphics Android Library IconAndroidX Graphics AndroidX Media3 (ExoPlayer) Android Library IconAndroidX Media3 (ExoPlayer) AndroidX Test Android Library IconAndroidX Test
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