Looking for project similar to Freelancer but done on apk for both freelancer and client. To work on both ios and Android.

Looking for project similar to Freelancer but done on apk for both freelancer and client. To work on both ios and Android. PS post actual bid. I do not want to discuss price later. Also I will only pay after project is completed and done and posted in play store. . No milestone. 90% project is useless to me. I need 100% and tested. Project is for travel industry.