first i wanna say your plugin is really nice!
I am using Math Captcha (Current Version 1.0.9) for Registration Form, Lost Password an contact form 7. First i wanna say all these integrations are working well (Mobile and Desktop).
I also use WPTouch (Current non-pro Version 3.1.5) for mobile access.
If both plugins are enabled i cannot view the "Installed Plugin" Page. I have disabled all plugins and re-enabled one by one. I figured out, if i disable MathCaptcha i am able to view the page.
At the moment i have to disable the MathCaptcha plugin every time i wanna update a plugin or view the installed plugins.
Also the Captcha in "login form" from wptouch is not working, but for me i don't need it.
Thanks for your help! :)
Best Regards from Germany