Borescope ET20

by Klein Tools, Inc. · Tools · Free

On Google Play since February 2019 · Data updated 2026-10-04

Google Play

Borescope ET20 is made and published by Klein Tools, Inc. AppBrain is an independent app data site and isn't affiliated with Klein Tools, Inc. The app name, icon, screenshots and description belong to Klein Tools, Inc. and are shown as published on Google Play.

AppBrain's verdict

EstablishedPoorly rated

Rating on Google Play: 2.96; 164 ratings
Installs: 100 thousand
Last updated: November 24, 2025
Ads: No ads
Size: 24.2 MB

Borescope ET20 has 100 thousand installs. Users are critical: 3.0 stars from 164 ratings.

User feedback

Ratings and reviews on Google Play

Comments on Borescope ET20 for Android

★★★★★ James Perkins · May 27, 2020

Had trouble getting it to work until I TURNED OFF CELLULAR DATA on my phone. If the app is looking for data and knows that Wi-Fi isn't connected to the Internet, it will default to Cellular. If you turn off cellular data, it works. You can't be connected to the Cellular Internet and to the KT-Borescope Wi-Fi at the same time.

★★★★☆ Stephan Crain · Jan 16, 2021

It functions as advertised. Like anything new, Practice Practice at least until you are familiar with the operation of the tool

★★★★☆ Drew Hobby · Apr 15, 2021

I found out after some research that just Downloading the Klein Scope app right from the App Store will not work the camera at all. You Must go to the actual Klein Scope website and download the link from their website. That is the only way to get it operational. You can find the website with the case and scope given to the buyer. Good luck Ladies and Gents! Don't always use Google to solve issues sometimes you just gotta do your research if your desperate enough.

★☆☆☆☆ Jeremy Vano · Jan 31, 2024

Does not actually work with the specific borescope this was designed for. I was able to get a separate app to work with my Klein borescope.

★☆☆☆☆ Dakota Edwards · Jun 11, 2020

App crashes constantly. Camera can never connect even though my phone says it is. Had the camera for six months and always have issues. Waste of money.

★☆☆☆☆ Mat S. · Aug 27, 2022

This app makes me want to punch a baby. Wi-Fi is connected, app reads the unit (detects battery level) tried mobile data on and off, Wi-Fi light is solid green... still blank screen. Hold my phone while I go get that baby... Samsung Galaxy s21 app version 3.4

Google Play Rating history and histogram

Store listing

By Klein Tools, Inc., from Google Play

“App to be used with Klein Tools' Borescope ET20”

Screenshots by Klein Tools, Inc., from the Google Play listing

Description by Klein Tools, Inc. Written by the developer, not by AppBrain. Click to read.

The Klein Tools WiFi Borescope App enables your smartphone to work as the ET20 borescope screen and memory. You can easily and efficiently control the light on the camera end of the borescope, and record and share photos and video all through the App.

App Features:
• Easily display images from the borescope to your compatible Android® phone
• Rotate the image with your phone, no need to struggle with the camera and cable
• Capture any image the borescope displays
• Record the video transmitted from the borescope
• Conveniently manage the camera LED lights through the App
• Save and store photos and videos
• Share photos and videos
• Adjust camera and video settings

The Klein Tools' WiFi enabled ET20 Borescope enables you to capture high-quality photo and video directly to your device from up to 30 feet away. It features a waterproof† 9mm camera with durable, armored 6 ft. (1.8 m) flexible gooseneck cable, on-board LED lights, convenient pocket clip and rechargeable lithium-ion battery.

Recent changes:
v4.0.2

Official page on Google Play

Safety and technology

Found in the app by AppBrain

Ads: No ads
Price: Free
Libraries: 8
App size: 24.2 MB
Needs Android: 5.0+
Content rating: Everyone

Technologies used by Borescope ET20

7 permissions · 8 libraries

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Releases

Updates seen on Google Play

Version: 4.0.2
Launched: February 2019

Aug 5, 2026Installs100,000+ installs
Nov 24, 2025UpdateVersion 4.0.2
Aug 24, 2023UpdateVersion 3.5
Jul 25, 2022Installs50,000+ installs
Feb 22, 2022UpdateVersion 3.4

Show all changes Show fewer

Alternatives

Similar apps and more from Klein Tools, Inc.

Alternatives to Borescope ET20

Installs

Tracked by AppBrain

Last 30 days: 450
Per day: 15; 30-day average
Play install range: 100+ thousand
Launched: February 2019

Installs over time

Borescope ET20 has been installed 100 thousand times. Over the past 30 days, it averaged 15 installs per day.

Rankings

Google Play top charts

Google Play Rankings for Borescope ET20

This app is not ranked

About the app and developer

About Borescope ET20

Borescope ET20 is a tools app developed by Klein Tools, Inc.

Install Statistics

Borescope ET20 has been installed 100 thousand times. In the last 30 days, the app was installed 450 times.

User Ratings

Borescope ET20 is rated 2.96 out of 5 stars. The rating is based on 160 ratings.

App Information

Borescope ET20 is freely available from Google Play. The app size is 24.22 MB. The latest version available is 4.0.2. The last update was on November 24, 2025.

Technical Requirements

Borescope ET20 requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since February 2019.

App Performance Report

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Developer information for Klein Tools, Inc.

Klein Tools, Inc.

customerservice@kleintools.com

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