InterBase (and FireBird) Data Access Components (IBDAC) is a library of components that provides native connectivity to InterBase, Firebird and Yaffil from Delphi, C++Builder, Lazarus (and Free Pascal) on Windows, Mac OS X, iOS, Android, Linux, and FreeBSD for both 32-bit and 64-bit platforms. IBDAC-based applications connect to the server directly using the InterBase client. IBDAC is designed to help programmers develop faster and cleaner InterBase database applications. IBDAC is a complete replacement for standard InterBase connectivity solutions. It presents an efficient alternative to InterBase Express Components, the Borland Database Engine (BDE), and the standard dbExpress driver for access to InterBase.

Basic4android is the simplest and most powerful Rapid Application Development (RAD) tool available for the Android platform

Basic4android includes all features needed to develop great, real-world Android applications
Compiled applications are native Android applications, there is no extra run-time or any dependencies
Our community with over 50k developers is waiting to help you get started

ORM framework for Delphi with full support for data manipulation, complex and advanced queries, inheritance, polymorphism, and more...

.NET NFC library for Android.
uses Android NFC API
provides reading, writing and formatting NFC tags
supports NDEF, NFC-A, NFC-V, MIFARE Classic and MIFARE Ultralight tags
source code included in registered version
royalty free distribution in applications

WUNI 232c is limited to Windows only and distributed under MIT license.
Below is the contents of UNI 232C (WIN + Android version).

Delphi and C++ Builder printing library for Android.

uses Android Print and PrintHelper API
supports printing images, HTML pages, PDF files and generated PDF documents
requires Android 4.4 KitKat or higher
available for Delphi/C++ Builder XE7 - 10.2
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder USB and HID library for Android.

uses standard Android USB API
available for Delphi/C++ Builder XE7 - 10.2
source code included in registered version
royalty free distribution in applications

Telerik UI for Xamarin uses the Xamarin.Forms technology, which makes it possible for developers to build native iOS, Android and Windows Phone apps from a single shared C# code base. The Telerik Chart and Calendar for Xamarin enables developers to easily implement various charting functionalities in their Xamarin.Forms projects and achieve the same scenarios across platforms using a single shared C# code base.

Delphi and C++ Builder library for Android to handle Zip files.

uses Zip4j library
available for Delphi/C++ Builder XE6 - 10.2
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder barcode component for FireMonkey.

uses Zint Barcode Generator
supports over 50 symbologies including Code 128, Data Matrix, USPS OneCode, EAN-128, UPC/EAN, ITF, QR Code, Code 16k, PDF417, MicroPDF417, LOGMARS, Maxicode, GS1 DataBar, Aztec, Composite Symbols and more
supports Windows 32, Windows 64, macOS, iOS and Android
available for Delphi/C++ Builder XE2 - 10.2
royalty free distribution in applications