The practical leader in terms of CAD designing techniques on Android 

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CAD Reader-Fast Dwg Viewer and Measurement Tool

CAD快速看图

CAD Reader-DWG/DXF Viewer

Interface in English, Spanish, Italian, French, German and Portuguese. You will have to allow installation from unknown sources to use their apps since they are all .XAPK files that need such permission as they are not official Google Play. It presents an interface that reminds Google Play to access games, apps and news, but stands out for offering recent apps adapted to devices with old versions of Android to be compatible. It is an alternative to Google Play in which you will be able to find applications and games that are no longer available on that page or that are blocked in your country for any reason.

Apkpure

Android 2.2 or higher. Android Phones. Ages 16+. To respond to the messages in the conversation, simply click the icon. To close, drag the box with your finger downward. English. It lets you send voice messages, add and share photos, send individual or group messages including your location and access to many extras and emoticons. Facebook Messenger is a communication application focussed on SMSs and Facebook messages in a single place.

Messenger

Facebook Messenger

Android version 2.2 or higher. Android phones or tablets with technology. Really useful for those who need to open PDF files often through their mobile device. English. On startup, the application will list PDF files present in the device; just click to see them. Two active touch screen zoom and a touch opens the tools menu to edit the text. Apart from seeing the text, you can add signatures, comments and notes, highlight important passages with bold colors and insert images which can be drawn by hand. Complete and free, Adobe Reader offers a multitude of functions. View files, fill out forms, insert text, print and share documents, and store them in the cloud. Adobe Reader is a productivity application and a useful and essential tool with which you can not only view the PDF files, but also interact with files in various ways.

Adobe Acrobat Reader: Leitor e Editor de PDF

Adobe Acrobat Reader：编辑 PDF

Adobe Acrobat Reader

Adobe Acrobat Reader untuk PDF

PDFelement - Free PDF Reader and Annotator

PDF Max Pro - The PDF Expert!

XLSX viewer - Excel Reader, XLS Reader

Word Office Reader - Docx, Slide, Excel, PDF

Word Office - PDF, Docx, Excel

QRScanner: Leitor de Código QR & Barra

QR Scanner and Barcode Reader

QR Scanner: Escáner de Código QR

QR Scanner : QR Code Lecteur & Code-barre Lecteur

QRコードリーダー：QR＆バーコードをスキャンする

Flexcil Notes & PDF Reader - Notebook, Note-taking

Flexcil Notes & PDF Reader

플렉슬 노트 & PDF 뷰어 - PDF 주석과 노트 필기,  그리고 메모장

Xodo PDF Reader & Editor

Xodo Lector y Editor de PDF

Lettore ed Editor PDF Xodo

Xodo PDFリーダー＆エディター

Xodo - PDF 리더 & 주석

Xodo PDF Ридер и Редактор