Upgrade 7 year old mac app

Hello , I am Mac OS development Expert and have 7+ years of Experience .I can update yoru app to latest OS and make it compatible to it . I have recently done the same for one of my Please contact so we can discuss the requirement in detail . Thank you

Hello!!! How are you today? I am very interested in your project. I can upgrade your mac app surely in a short time. I have developed many mobile android and ios apps for 6 years by now.. I would like to work with you for a long time with good friendship. If you want, I can send you my previous apps. I will do my best for you when you hire me. Thank you very much. Best regards.

Hi there, What changes do you want to make in the app? In which language and framework is it developed? Please PM to discuss further. Thanks Sam

Hi How are you? I saw your description carefully and i 'm very interesting your project. I can start working right now and I can WORK FULL TIME on your project during the entire development of your project. I am extremely experienced in iOS & Android App development, because I have been developing iOS & Android apps for 6 years. I will make your app on a world-class quality as I have developed many Successful Apps for Android using Java over the past 6 years. - My advantages: *World-class quality and experience: *Native-level English *PST/EST working hour - Pre-launch support: *Graphic(UI/UX) design *Backend API development *Frontend development *Admin Panel or CMS *Testing and Quality Assurance *App Store Submission and Approval - Post-launch support: *Maintenance/Bug Fixing *Further Extensions *Your Success Is My Success *I am always looking for a long-term relationship based on trust and professionalism. Thank you *************^^^^^^^^^^^^^^^*^***^