Some great, some not so great...
Ok, first the good - great and comprehensive linguistic reference from a trusted source. No analytics or telemetry - thank you, developers for being conscientious! However... the app interface is crude and awkward, the icon is defective - the close and open animation results in tearing and artifacts, revealing white background. Unacceptable for iOS app. If you want an UI to emulate look no further than the Harper-Collins Dictionary and Thesaurus (dark blue icon, red lettering). They have nailed the interface. Otherwise you have a promising product on your hands.