I want an app that responds to requests like “what is the time in London when it’s 10 p.m. in Texas?”
I thought that it was reviewed on your website but I can’t find it.
Although,you can find those apps which are reviewed by Makeuseof below -
Speaktoit Voice Assistant is good and well known app -
If you have an iPhone 4S or 5, then you can just ask Siri that question and she responds without any problems. However, if you have an iPhone 4 or lower, you could try Dragon Go!, an app made by Nuance, the same company that designed Siri for Apple.
How To Update Your Twitter & Facebook Status With Siri [iPhone 4S]
How to set up, configure, secure, and start using Siri
5 Free Siri Alternatives For Android – Which Is The Best?//www.makeuseof.com/tag/5-free-siri-alternatives-for-android-which-is-the-best/