How to download and setup WhatsApp
Open terminal and run command
                                            git clone https://github.com/Aleydon/WhatsApp.git
                                        
                                        git clone is used to create a copy or clone of WhatsApp repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with WhatsApp https://github.com/Aleydon/WhatsApp/archive/master.zip
Or simply clone WhatsApp with SSH
                                            [email protected]:Aleydon/WhatsApp.git                                    
                                    If you have some problems with WhatsApp
You may open issue on WhatsApp support forum (system) here: https://github.com/Aleydon/WhatsApp/issuesSimilar to WhatsApp repositories
Here you may see WhatsApp alternatives and analogs
open-source-ios-apps XHLaunchAd Bender SBSAnimoji qui-radio-app STPopup STPopupPreview Dash-iOS ChatSecure-iOS CHIPageControl iphone-inline-video ioctocat OpenSSL-for-iPhone Sol mobile-web-favorites HiBeacons Device CodenameOne BlockParty PopcornTimeTV WSProgressHUD chat-sdk-ios LEEAlert app-framework AssistantKit top niubi-headphones cs193p-Winter-2017 GHConsole GuGuJianKong