diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index 8b768ad..442c112 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -12,4 +12,4 @@ project(app LANGUAGES C VERSION 1.0.0)
 configure_file(app_version.h.in ${CMAKE_BINARY_DIR}/app/include/app_version.h)
 target_include_directories(app PRIVATE ${CMAKE_BINARY_DIR}/app/include src)
 
-target_sources(app PRIVATE src/main.c src/foo.c)
+target_sources(app PRIVATE src/main.c)
diff --git a/app/src/foo.c b/app/src/foo.c
deleted file mode 100644
index 63e2d71..0000000
--- a/app/src/foo.c
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * Copyright (c) 2021 Nordic Semiconductor ASA
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "foo.h"
-
-int app_foo_bar(void)
-{
-	return 0;
-}
diff --git a/app/src/foo.h b/app/src/foo.h
deleted file mode 100644
index 34d8e1e..0000000
--- a/app/src/foo.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * @file foo.h
- *
- * Foo API.
- *
- * Copyright (c) 2021 Nordic Semiconductor ASA
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#ifndef _FOO_H_
-#define _FOO_H_
-
-/**
- * @defgroup app_foo Foo API
- *
- * A detailed description of the foo API.
- *
- * @{
- */
-
-/**
- * @brief An example foo API call.
- *
- * @return 0 on success, negative errno otherwise.
- */
-int app_foo_bar(void);
-
-/** @} */
-
-#endif /* _FOO_H_ */
diff --git a/app/src/main.c b/app/src/main.c
index 158dbee..6663a43 100644
--- a/app/src/main.c
+++ b/app/src/main.c
@@ -7,7 +7,6 @@
 #include <drivers/sensor.h>
 
 #include "app_version.h"
-#include "foo.h"
 
 #include <logging/log.h>
 LOG_MODULE_REGISTER(main, CONFIG_APP_LOG_LEVEL);
@@ -19,12 +18,6 @@ void main(void)
 
 	printk("Zephyr Example Application %s\n", APP_VERSION_STR);
 
-	ret = app_foo_bar();
-	if (ret < 0) {
-		LOG_ERR("app_foo_bar failed (%d)", ret);
-		return;
-	}
-
 	sensor = DEVICE_DT_GET(DT_NODELABEL(examplesensor0));
 	if (!device_is_ready(sensor)) {
 		LOG_ERR("Sensor not ready");