Thank you for your feedback. The shrinking of image size when resizing photos in certain third-party APPs is primarily caused by compatibility issues between the APP and the phone’s system. This behavior occurs because the APP could not fully support the phone's image handling capabilities or it could have limitations in processing larger images correctly. We have already reached out to the APP developers, and they are working on optimizing compatibility in future updates. We recommend checking for the latest APP versions regularly to ensure that the issue is resolved. We apologize for the inconvenience and appreciate your understanding as we continue to improve your experience.