Is there data on how many users have Flash, Java, or Unity plugins installed?

  • 3
    \$\begingroup\$ Remember that penetration is a less useful measure than penetration + (1 - penetration) * conversion. \$\endgroup\$
    – user744
    Commented Jan 28, 2011 at 10:33
  • \$\begingroup\$ Equation in word form for posterity: What matters is how many people will use a plugin to view my content, either because they already had it or converted to it just to see my content. \$\endgroup\$ Commented Jan 29, 2011 at 20:11

3 Answers 3


This website extrapolates from a panel of some sort:


Bottom line as of posting this:

  • Flash: 97%
  • Silverlight: 70%
  • Java: 75%
  • 2
    \$\begingroup\$ Silverlight 70%? I find that difficult to believe. \$\endgroup\$ Commented Jan 29, 2011 at 11:06
  • \$\begingroup\$ Mail RIA stats then... \$\endgroup\$ Commented Jan 31, 2011 at 19:35

Others have mentioned Flash, Java and Silverlight. Sadly there are no official numbers for Unity I'm aware of. In a rather old blog post they talk about ~1% pre-installed user base. This article over at Gamasutra also assumes 1% penetration. Although the conversion seems to be rather high (people willing to install the plugin).

User base might also increase with gaming platforms like Kongregate supporting Unity Web-Games.


According to the Adobe Flash website, Flash Player Version Penetration, it's about 99-98% in most markets.

Java is also pretty ubiquitous. Unity is less frequently found, however the installer is inline and quite small in most cases.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .