diff --git a/build_linux_cuda_freetier.sh b/build_linux_cuda_freetier.sh
new file mode 100644
index 0000000..cea2ef3
--- /dev/null
+++ b/build_linux_cuda_freetier.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+
+echo "Automatic build script of radarsimcpp/radarsimpy for Linux"
+echo ""
+echo "----------"
+echo "RadarSimPy - A Radar Simulator Built with Python"
+echo "Copyright (C) 2018 - PRESENT  radarsimx.com"
+echo "E-mail: info@radarsimx.com"
+echo "Website: https://radarsimx.com"
+echo ""
+echo "██████╗  █████╗ ██████╗  █████╗ ██████╗ ███████╗██╗███╗   ███╗██╗  ██╗"
+echo "██╔══██╗██╔══██╗██╔══██╗██╔══██╗██╔══██╗██╔════╝██║████╗ ████║╚██╗██╔╝"
+echo "██████╔╝███████║██║  ██║███████║██████╔╝███████╗██║██╔████╔██║ ╚███╔╝ "
+echo "██╔══██╗██╔══██║██║  ██║██╔══██║██╔══██╗╚════██║██║██║╚██╔╝██║ ██╔██╗ "
+echo "██║  ██║██║  ██║██████╔╝██║  ██║██║  ██║███████║██║██║ ╚═╝ ██║██╔╝ ██╗"
+echo "╚═╝  ╚═╝╚═╝  ╚═╝╚═════╝ ╚═╝  ╚═╝╚═╝  ╚═╝╚══════╝╚═╝╚═╝     ╚═╝╚═╝  ╚═╝"
+
+workpath=$(pwd)
+
+echo "## Clean old build files ##"
+rm -rf ./src/radarsimcpp/build
+rm -rf ./radarsimpy
+
+echo "## Building libradarsimcpp.so with GPU ##"
+mkdir ./src/radarsimcpp/build 
+cd ./src/radarsimcpp/build
+
+cmake -DCMAKE_BUILD_TYPE=Release -DGPU_BUILD=ON -DGTEST=ON ..
+cmake --build .
+
+echo "## Building radarsimpy with Cython ##"
+cd $workpath
+python setup_cuda_freetier.py build_ext -b ./
+
+echo "## Copying lib files to ./radarsimpy ##"
+# mkdir ./radarsimpy/lib
+cp ./src/radarsimpy/*.py ./radarsimpy
+cp ./src/radarsimpy/lib/__init__.py ./radarsimpy/lib
+cp ./src/radarsimcpp/build/*.so ./radarsimpy
+
+echo "## Cleaning radarsimpy builds ##"
+rm -rf build
+
+rm -f ./src/radarsimpy/*.c
+rm -f ./src/radarsimpy/*.cpp
+rm -f ./src/radarsimpy/*.html
+rm -f ./src/radarsimpy/raytracing/*.c
+rm -f ./src/radarsimpy/raytracing/*.cpp
+rm -f ./src/radarsimpy/raytracing/*.html
+rm -f ./src/radarsimpy/lib/*.cpp
+rm -f ./src/radarsimpy/lib/*.html
+rm -f ./src/*.cpp
+rm -f ./src/*.html
+
+echo "## Copying lib files to unit test folder ##"
+rm -rf ./tests/radarsimpy
+mkdir ./tests/radarsimpy
+cp -rf ./radarsimpy/* ./tests/radarsimpy
+
+echo "## Build completed ##"
+
+echo "## Run Google test ##"
+./src/radarsimcpp/build/radarsimcpp_test
+
+echo "## Pytest ##"
+pytest
diff --git a/build_win_cuda_freetier.bat b/build_win_cuda_freetier.bat
new file mode 100644
index 0000000..cd96c88
--- /dev/null
+++ b/build_win_cuda_freetier.bat
@@ -0,0 +1,72 @@
+@ECHO OFF
+
+ECHO Automatic build script of radarsimcpp/radarsimpy for Windows
+ECHO:
+ECHO ----------
+ECHO RadarSimPy - A Radar Simulator Built with Python
+ECHO Copyright (C) 2018 - PRESENT  radarsimx.com
+ECHO E-mail: info@radarsimx.com
+ECHO Website: https://radarsimx.com
+ECHO:
+ECHO  *******                  **                   ******** **             **     **
+ECHO /**////**                /**                  **////// //             //**   **
+ECHO /**   /**   ******       /**  ******   ******/**        ** **********  //** **
+ECHO /*******   //////**   ****** //////** //**//*/*********/**//**//**//**  //***
+ECHO /**///**    *******  **///**  *******  /** / ////////**/** /** /** /**   **/**
+ECHO /**  //**  **////** /**  /** **////**  /**          /**/** /** /** /**  ** //**
+ECHO /**   //**//********//******//********/***    ******** /** *** /** /** **   //**
+ECHO //     //  ////////  //////  //////// ///    ////////  // ///  //  // //     //
+ECHO:
+
+SET pwd=%cd%
+
+ECHO clean old build files
+RMDIR /Q/S .\src\radarsimcpp\build
+
+ECHO clean old radarsimpy module
+RMDIR /Q/S .\radarsimpy
+
+@REM go to the build folder
+MD ".\src\radarsimcpp\build"
+CD ".\src\radarsimcpp\build"
+
+ECHO ## Building radarsimcpp.dll with MSVC ##
+@REM MSVC needs to set the build type using '--config Relesae' 
+cmake -DGPU_BUILD=ON -DGTEST=ON ..
+cmake --build . --config Release
+
+ECHO ## Building radarsimpy with Cython ##
+CD %pwd%
+python setup_cuda_freetier.py build_ext -b ./
+
+ECHO ## Copying dll files to ./radarsimpy ##
+XCOPY ".\src\radarsimcpp\build\Release\radarsimcpp.dll" ".\radarsimpy\"
+XCOPY ".\src\radarsimpy\*.py" ".\radarsimpy\"
+XCOPY ".\src\radarsimpy\lib\__init__.py" ".\radarsimpy\lib\"
+
+ECHO ## Cleaning radarsimpy builds ##
+RMDIR build /s /q
+
+DEL ".\src\radarsimpy\*.c"
+DEL ".\src\radarsimpy\*.cpp"
+DEL ".\src\radarsimpy\*.html"
+DEL ".\src\radarsimpy\raytracing\*.c"
+DEL ".\src\radarsimpy\raytracing\*.cpp"
+DEL ".\src\radarsimpy\raytracing\*.html"
+DEL ".\src\radarsimpy\lib\*.cpp"
+DEL ".\src\radarsimpy\lib\*.html"
+DEL ".\src\*.cpp"
+DEL ".\src\*.html"
+
+ECHO ## Copying lib files to unit test folder ##
+
+RMDIR /Q/S .\tests\radarsimpy
+XCOPY /E /I .\radarsimpy .\tests\radarsimpy
+
+ECHO ## Build completed ##
+
+ECHO ## Run Google test ##
+.\src\radarsimcpp\build\Release\radarsimcpp_test.exe
+
+ECHO ## Pytest ##
+pytest
diff --git a/setup_cuda_freetier.py b/setup_cuda_freetier.py
index 38408b4..4deea2d 100644
--- a/setup_cuda_freetier.py
+++ b/setup_cuda_freetier.py
@@ -112,7 +112,7 @@ def locate_cuda():
 
 CUDA = locate_cuda()
 
-MACROS = [("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION"), ("_CUDA_", None)]
+MACROS = [("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION"), ("_CUDA_", None), ("_FREETIER_", 1)]
 INCLUDE_DIRS = ["src/radarsimcpp/includes", "src/radarsimcpp/includes/zpvector"]