The الكلمة إعرابها (Alkalimah E'rabuha) app is a comprehensive Arabic grammar reference that compiles linguistic terms with a single perspective on the syntax and other terms that have multiple perspectives in syntax. The app contains 1500 vocabulary words and references several sources, including: "Al-I'rab 'An Qawaid Al-I'rab" by Ibn Hisham Al-Ansari, "Al-Mu'jam Al-I'rab Wa Al-Em'la" by Emil Yakoub, "Al-Nahw Al-Ta'leemi Wa Al-Tatbeeq Fi Al-Quran Al-Kareem" by Dr. Mahmoud Suleiman Yakoub, and "Al-Mu'jam Al-Mufassal Fi Al-I'rab" by Mr. Taher Youssef Al-Khatib.

The الكلمة إعرابها app is a useful tool for those who are learning Arabic grammar and for those who need a reliable reference for the language. The app's simple and straightforward design makes it easy to navigate and find the information you need quickly. With its extensive vocabulary and reliable sources, this app is a must-have for anyone looking to improve their Arabic grammar skills.