iPhone app compatible issues

Hi Currently we have one iphone app that is already developed and needs to be worked in latest iphone6 and also its previous version like iphone5s and IOS8. This is small task to be done. After this we need to make that app to be working for ipad and android tablet. I ll provide you source code. I know only few lines of code to be written to get executed so please be fair in price. Project winner will have another 2 projects. I am sure you will get good reward for that. Please share portfolio of android and iphone and andorid. Serious bidder only. Thanks