I've built an Android application in Kotlin, and it uses these libraries :
...
implementation "androidx.camera:camera-core:${camerax_version}"
implementation "androidx.camera:camera-camera2:${camerax_version}"
implementation "androidx.camera:camera-lifecycle:${camerax_version}"
implementation "androidx.camera:camera-video:${camerax_version}"
implementation "androidx.camera:camera-view:${camerax_version}"
implementation "androidx.camera:camera-extensions:${camerax_version}"
implementation 'androidx.core:core-ktx:1.10.0'
implementation 'androidx.appcompat:appcompat:1.6.1'
implementation 'com.google.android.material:material:1.8.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.5'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
//Add Text Recognition Google ML Library
implementation 'com.google.android.gms:play-services-mlkit-text-recognition:18.0.2'
implementation 'com.google.android.gms:play-services-mlkit-text-recognition-common:18.0.0'
implementation("info.debatty:java-string-similarity:2.0.0")
...
My doubt is this.
These libraries are open-source and royalty-free or at some point I may get a payment request from Google or someone else. This is because we cannot remove an application from the user's smartphone but only from the Play Store, so before publishing it I need confirmation of licenses and royalties on the use of these libraries.
Here is the complete list of licenses :
https://opensource.org/license/mit/
https://www.apache.org/licenses/LICENSE-2.0.txt
https://developer.android.com/studio/terms
https://www.apache.org/licenses/LICENSE-2.0
https://github.com/mojohaus/animal-sniffer/blob/master/LICENSE
https://chromium.googlesource.com/libyuv/libyuv/+/refs/heads/main/README.chromium
https://github.com/typetools/checker-framework/blob/master/LICENSE.txt
https://github.com/google/dagger/blob/master/LICENSE.txt
https://github.com/google/j2objc/blob/master/LICENSE
https://github.com/amaembo/jsr-305/blob/master/ri/LICENSE
https://github.com/google/jsinterop-annotations/blob/master/LICENSE
https://github.com/JetBrains/kotlin/blob/master/license/LICENSE.txt
https://github.com/JetBrains/intellij-deps-trove4j/blob/master/LICENSE.txt
https://www-archive.mozilla.org/mpl/npl-1.1
https://www.mozilla.org/en-US/MPL/1.1/
https://www.mozilla.org/en-US/MPL/2.0/
https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
https://github.com/stephengold/asm/blob/master/LICENSE
https://www.boost.org/LICENSE_1_0.txt
https://www.eclipse.org/legal/epl-v10.html
https://developers.google.com/ml-kit/terms
https://developers.google.com/terms
https://developer.android.com/studio/terms.html