One ESP8266 4 smart phones

Newbie here
I will like to create garage door opener.
I use esp8266 and iPhone and works OK
I need to install blynk app on other family members smartphone.
How can I do this?

Blynk server
Latest Blynk Lib I just installed Blynk and new to Blynk.

Thank you for any help.

// ESP8266_Blynk_Simple.ino
// Template Blynk Blink
  Download latest Blynk library here:

  Blynk is a platform with iOS and Android apps to control
  Arduino, Raspberry Pi and the likes over the Internet.
  You can easily build graphic interfaces for all your
  projects by simply dragging and dropping widgets.

    Downloads, docs, tutorials:
    Sketch generator: 
    Blynk community:  
    Follow us:        

  Blynk library is licensed under MIT license
  This example code is in public domain.


  You’ll need:
   - Blynk App (download from AppStore or Google Play)
   - Adafruit Huzzah board
   - Decide how to connect to Blynk
     (USB, Ethernet, Wi-Fi, Bluetooth, ...)

  There is a bunch of great example sketches included to show you how to get
  started. Think of them as LEGO bricks  and combine them as you wish.
  For example, take the Ethernet Shield sketch and combine it with the
  Servo example, or choose a USB sketch and add a code from SendData
/* Comment this out to disable prints and save space */

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "336a9248d8a94dd0a0292d2b55*********";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "**";
char pass[] = "**";

void setup()
  // Debug console

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "", 8442);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442);


void loop()
  // You can inject your own code or combine it with other sketches.
  // Check other examples on how to communicate with Blynk. Remember
  // to avoid delay() function!

in app setup - Generate Link you will get a QR
use your family phone scan this QR
they will get access to your app

@csmcvea You can try the sharing method as above, but it will be read only (they can’t change anything), and you MUST have the project actively running on your phone in order for them to see it. Also I am unsure if you can have more then one share at a time??

Look here for a bit more info…

However as long as you can "train " others to not mess with the project settings in edit mode, a better way will be to simply have each one log into the same account.

Sharing was made specifically for that

Thank you
Very helpful