expo example using app.json

Example 1: expo app.json

{
  "expo": {
    "name": "Kleva Shopper",
    "slug": "smart-shopper",
    "privacy": "public",
    "sdkVersion": "35.0.0",
    "platforms": [
      "ios",
      "android",
      "web"
    ],
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/icons/icon.png",
    "splash": {
      "image": "./assets/icons/splash.png",
      "resizeMode": "contain",
      "backgroundColor": "#ffffff"
    },
    "updates": {
      "fallbackToCacheTimeout": 0
    },
    "assetBundlePatterns": [
      "**/*"
    ],
    "ios": {
      "supportsTablet": true
    },
    "android": {
      "package": "com.leumasco.klavashopper"
    },
    "extra": {
        "test": {
          "message": "I am a message"
        },
        "FIRE_BASE": {}
    },
    "description": ""
  }
}

Example 2: expo app.json

{
  "expo": {
    "name": "My app",
    "slug": "my-app",
    "sdkVersion": "UNVERSIONED",
    "privacy": "public"
  }
}