Optimizely is a lower cost entry tool for anyone looking to do website testing. While their pricing structure has changed over the years it still is a pretty cost effective solution. It is easy to get tests up and running within 5 minutes once you have code placed on your site.
I love the drag and drop features of Optimizely. It makes it very easy to make simple changes to do landing page testing for my paid search campaigns. It also frees up dev time for our web team. Also, The findings from Optimizely tests are so valuable for an end customer experience.
Based on our record, BSNES seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The official "website" is the Github repository at https://github.com/bsnes-emu/bsnes/ but some unknown entity has snagged bsnes.org and is now also publicly linking to SNES ROMs they host on Github (Github doesn't care, you can report those repositories as much as you want. If you're not a rights holder they won't do anything). - Source: Hacker News / 2 months ago
Bsnes is considered the most accurate one, but I personally use snes9x. Source: over 1 year ago
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Snes9x - Snes9x is a portable, Super Nintendo Entertainment System (SNES) emulator.
AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.
OpenEmu - Console and Arcade video game emulator for macOS.