Grails vs Yii: What are the differences?
Grails: An Open Source, full stack, web application framework for the JVM. Grails is a framework used to build web applications with the Groovy programming language. The core framework is very extensible and there are numerous plugins available that provide easy integration of add-on features; Yii: A high-performance PHP framework best for developing Web 2.0 applications. Yii comes with: MVC, DAO/ActiveRecord, I18N/L10N, caching, authentication and role-based access control, scaffolding, testing, etc. It can reduce your development time significantly.
Grails and Yii can be primarily classified as "Frameworks (Full Stack)" tools.
"Groovy" is the primary reason why developers consider Grails over the competitors, whereas "Open source" was stated as the key factor in picking Yii.
Grails and Yii are both open source tools. Yii with 4.86K GitHub stars and 2.22K forks on GitHub appears to be more popular than Grails with 2.48K GitHub stars and 945 GitHub forks.
According to the StackShare community, Yii has a broader approval, being mentioned in 58 company stacks & 32 developers stacks; compared to Grails, which is listed in 47 company stacks and 22 developer stacks.