web2py
829 websites

web2py is free to use

http://www.web2py.com

Free open source full-stack framework for development of database-driven web-based applications. Written and programmable in Python.

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Zend Framework Debugger
2,615 websites

Zend Framework Debugger costs money

https://framework.zend.com/

Zend Debug is a component that help the debugging of PHP applications. In particular it offers a static method Zend\Debug\Debug:dump() that prints or returns information about an expression. This simple technique of debugging is common beca...

Market Share by Top Websites

1 Zend Framework Debugger is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, web2py is clearly lagging behind, losing to Zend Framework Debugger in all segments.

Websites Categories

1 Zend Framework Debugger has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Adult, Arts & Entertainment and 19 other categories.

2 web2py is leading in News & Media.

Geography

1 web2py is leading in most countries, including Argentina, Italy, Spain, Germany and 37 other countries.

2 Zend Framework Debugger is leading in China, United States, Japan, Hong Kong and 35 other countries.