Yes, we do offer a mobile version of the service for both Android and Apple devices.
Just go to either the Android Play Store or iOS App Store and search for eharmony. On an iPad you need to change the search options from iPad-only to iPhone.
Please note that if you see a message that the app is not compatible with your device, it means that you are using an older version of the Operating System for your device and need to update the it or try another device. Compatibility information can be found in the App details.