Difference between Firebase and Impala

1. Firebase : Firebase is developed by Google in 2012. It is a database to store and synchronize data in real-time. It is a Cloud-hosted real-time document store and gives the flexibility to access data from any device iOS, Android. JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data. 2. Impala : Impala is a query engine that runs on Hadoop. It is an open source software and massively parallel processing SQL query engine. It supports in-memory data processing. It is pioneering the use of the Parquet file format, a columnar storage layout that is optimized for large-scale queries typical in data warehouse scenarios. It provides high-performance, low-latency SQL queries and also offers interactive query processing on data stored in Hadoop file formats. 
Difference between Firebase and Impala :

Firebase	Impala
It was developed by Google in 2012.	It is developed by Cloudera in 2013.
It support Objective C, Java and JavaScript as programming languages.	It supports C, C#, Java, JavaScript, PHP, Lau, Python, R, Ruby as programming languages.
It is not much secure.	It provides more security than Firebase.
It does not support any partitioning method.	It support Sharding partitioning methods for storing different data on different nodes.
It is more suitable for small-scale applications.	It is more suitable for large-scale applications.
Android, iOS, JavaScript API, RESTful HTTP API are used as APIs and other access methods.	JDBC and ODBC are used as APIs and access methods.
It does not support Map Reduce methods.	It supports Map Reduce methods.
It is a commercial database.	It is an open source software.
Server operating systems for Firebase are hosted.	Server operating systems for Impala is Linux.