Fast STL Viewer is made and published by Fast STL Viewer. AppBrain is an independent app data site and isn't affiliated with Fast STL Viewer. The app name, icon, screenshots and description belong to Fast STL Viewer and are shown as published on Google Play.

About Fast STL Viewer

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

Install Statistics

Fast STL Viewer has been installed 1.6 million times. In the last 30 days, the app was installed 31 thousand times.

User Ratings

Fast STL Viewer is rated 2.56 out of 5 stars. The rating is based on 4.2 thousand ratings.

App Information

Fast STL Viewer is freely available from Google Play. The app size is 20.46 MB. The latest version available is 2.91. The last update was on October 13, 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 since July 2015.

Description by Fast STL Viewer (from Google Play)

Professional STL inspection and measurement on Android.

More data about Fast STL Viewer

Price	Free
Total installs	1.6 million
Recent installs	31 thousand
Rating	2.56 based on 4.2 thousand ratings
Ranking	Not ranked
Version	2.91
App size	20.5 MB
Number of libraries	48
Designed for Android	7.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Screenshots

Screenshots by Fast STL Viewer, from the Google Play listing

Official page on Google Play

Alternatives to Fast STL Viewer

Google Play Rating history and histogram

1.3K

280

210

2.2K

Installs over time

Fast STL Viewer has been installed 1.6 million times. Over the past 30 days, it averaged 1 thousand installs per day.

Changelog of Fast STL Viewer

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Developer information for Fast STL Viewer

Fast STL Viewer

support@fast-stl.com

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Comments on Fast STL Viewer for Android

★★★★★ Good Will · Mar 14, 2026

Hands down the best STL viewer. Ads are totally manageable.

★★★★☆ parker nahrgang · Sep 2, 2026

A lot of the negative reviews seem to be because of the ads, but this is a free app—of course there are going to be ads. They aren’t very intrusive, and most are relatively short. The app itself functions really well. The only feature I feel is missing is the ability to move objects around. Other than that, it’s a great option if you just need to quickly open and review STL files. Sit through the 10-second ad and enjoy the free app.

★★★★★ 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.

★☆☆☆☆ 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.

★☆☆☆☆ 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.

Google Play Rankings for Fast STL Viewer

This app is not ranked

Technologies used by Fast STL Viewer

13 permissions · 48 libraries

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Frequently asked questions about Fast STL Viewer

Is Fast STL Viewer free?

Yes. Fast STL Viewer is free on Google Play.

Is Fast STL Viewer still available?

Yes. Fast STL Viewer is on Google Play, and the last update we saw was on October 13, 2026.

Does Fast STL Viewer contain ads?

Yes. Google Play lists Fast STL Viewer as containing ads.

What Android version does Fast STL Viewer require?

Fast STL Viewer runs on Android 7.0 and higher.

How large is Fast STL Viewer?

Fast STL Viewer is 20.46 MB.

Is Fast STL Viewer suitable for children?

Google Play rates the content of Fast STL Viewer as suitable for everyone.

How many times has Fast STL Viewer been installed?

Google Play lists 1,000,000+ installs for Fast STL Viewer.

How do people rate Fast STL Viewer?

Fast STL Viewer scores 2.56 out of 5 stars, from 4,172 ratings on Google Play.

Who made Fast STL Viewer?

Fast STL Viewer was developed by Fast STL Viewer. It is listed in the tools category on Google Play.

What are the best alternatives to Fast STL Viewer?

People looking at Fast STL Viewer also look at these tools apps: Thingiverse Printables | 3D GO, STL & 3D Model Viewer - Mes3D, exocad webview - STL 3D Viewer, 3D Printing - Thingiverse, CNC G-Code Scanner, STL Viewer.

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