In the Arabic text, the preposition في was merged into the word before it. At the last part, it should be

لَبَّيْكَ وَسَعْدَيْكَ وَالْخَيْرُ كُلُّهُ فِي يَدَيْكَ

But in the app, it's merged like below

لَبَّيْكَ وَسَعْدَيْكَ وَالْخَيْرُ كُلُّهُفِيْ يَدَيْكَ،

جزاك الله خيرا