The top 20 popular Libraries & Demo Apps for Android in the United States

Check out the top Libraries & Demo Apps. We went through all Libraries & Demo Apps for Android on Google Play in September 2026 and picked the best ones for you to download onto your Android phone. This Android app list is sorted by the popularity in the United States. Last updated on 2026-09-02.

Payment Module

Rhythm Software

*THIS APP WILL NOT LAUNCH BY ITSELF* This is payment module ONLY for applications published by Rhythm Software. Donation record is bound to your Google account. That means if you have multiple dev…

Barcode Scanner

Cognex Corporation

Barcode scanning made simple! Use this powerful app to easily scan over 30 different types of barcodes, including QR, UPC, GS1, Data Matrix, PDF417, DotCode, and many others. The Cognex Barcode Sc…

Cardboard

Google LLC

Cardboard puts virtual reality on your smartphone. The Cardboard app helps you to launch your favourite VR experiences, discover new apps and set up a viewer. The app is now built on the Cardboard op…

Free

3.3

10,000,000+ downloads

Libraries & Demo

SL Screen Off plugin

Smart Launcher Team

This app works only with Smart Launcher This app uses the Device Administrator permission, in order to use a restricted API that allows to turn off your device screen This plugin will enable Smart L…

Default choice fixer for Smart

Smart Launcher Team

This app helps Smart Launcher to stay as the default launcher on devices that have the bad habit to reset the user choice. Please note, you don't need to install this app if Smart Launcher is alread…

Hebrew for AnySoftKeyboard

AnySoftKeyboard

Hebrew Language Pack for AnySoftKeyboard Includes several Hebrew layouts (including Niqqud), physical keyboard support and a word completion dictionary. This is an expansion language pack for AnySof…

IpSensorMan

Ifor Powell

IpSensorMan Manages talking to various sporting sensors using ANT+™ or Bluetooth or Bluetooth Low Energy interfaces. Using a separate app allows multiple client apps to access to the sensors…

Contacts for Locus Map

Asamm Software, s. r. o.

Add-on Contacts for Locus Map application enables searching and displaying addresses of contacts stored in your mobile device on a map. The add-on does not have its own screens or widgets, just adds …

Libraries for developers

Desarrollo Droide

This application provides a collection of third party libraries, as a developer this application is essential for you. You will have information about the author, captures, license, description, link…

Augm. Reality for Locus Map

Asamm Software, s. r. o.

Add-on for Locus Map application that enables visualization of selected points on the device screen with camera view - in augmented reality. Useful during town sightseeing tours, on viewtowers, for g…

おサイフケータイ Webプラグイン(連携用) – Click to show

Movies All Day | Play Samples

Google Samples

Movies All Day is a sample app to showcase how to integrate one-time products (OTPs) with the Play Billing Library. It further demonstrates how to integrate various purchase options (buy and rent) an…

SYNC Pulse - Alpha

SYNCMedia

Introducing SYNC Pulse - Alpha: Designed for Our Exclusive Panelists SYNC Pulse - Alpha is a specialized app built exclusively for our carefully selected panelists. It provides real-time insights in…

Vamo

Vamo Energy

Vamo macht Schluss mit komplexen Heizungseinstellungen. Du sagst uns, wie warm du es haben möchtest – wir kümmern uns um den Rest. Die App begleitet dich auf deinem Weg zu einer flexi…

Curas.com.ar

meappsolutions

El Padre Ignacio Marcenaro creó la página Curas.com.ar en el año 2003. Esta app busca seguir el espíritu de la página, quiere ayudar a los sacerdotes y a todos aqu…

TOTAL SOLUTION PUBLIC SERVICE – Click to show

Galaxy S9 Plus Ringtones

ZenTint Creations

The New Android Phone is out !! And if you can’t afford it, you can at least make it sound like a samsung™ galaxy S9 for Android Phones. Thanks to our loyal community we have gathered …

SD Card Repair Fixer

Light-APP

SD Card Repair is supporting free tool that can quickly and effectively to free fully check and verify your Android device SD Card Repair checker capabilities without Rooted your Android Phone or Tab…

Weather Demo Library

Matteo Battilana

Demo application of WeatherView library Github repo: https://github.com/MatteoBattilana/WeatherView Recent changes: Update to API 32

TRUCK ALERT transports animaux

Coeur du Web

TRUCKalert est la première application permettant de signaler les camions transportant sur les routes des vaches, des cochons, des moutons ou des poules par fortes chaleurs ou canicule. Elle a…

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