Flutter web analytics installation

Install the package

Required

Add the PostHog Flutter SDK to your pubspec.yaml:

pubspec.yaml
posthog_flutter: ^5.0.0

Platform setup

Required

Add these values to your AndroidManifest.xml:

android/app/src/main/AndroidManifest.xml
<application>
  <activity>
    [...]
  </activity>
  <meta-data android:name="com.posthog.posthog.API_KEY" android:value="<ph_project_api_key>" />
  <meta-data android:name="com.posthog.posthog.POSTHOG_HOST" android:value="https://us.i.posthog.com" />
  <meta-data android:name="com.posthog.posthog.TRACK_APPLICATION_LIFECYCLE_EVENTS" android:value="true" />
  <meta-data android:name="com.posthog.posthog.DEBUG" android:value="true" />
</application>

Update the minimum Android SDK version to 21 in android/app/build.gradle:

android/app/build.gradle
defaultConfig {
  minSdkVersion 21
  // rest of your config
}

Add these values to your Info.plist:

ios/Runner/Info.plist
<dict>
  [...]
  <key>com.posthog.posthog.API_KEY</key>
  <string><ph_project_api_key></string>
  <key>com.posthog.posthog.POSTHOG_HOST</key>
  <string>https://us.i.posthog.com</string>
  <key>com.posthog.posthog.CAPTURE_APPLICATION_LIFECYCLE_EVENTS</key>
  <true/>
  <key>com.posthog.posthog.DEBUG</key>
  <true/>
</dict>

Update the minimum platform version to iOS 13.0 in your Podfile:

Podfile
platform :ios, '13.0'
# rest of your config

Add these values in index.html:

web/index.html
<!DOCTYPE html>
<html>
  <head>
    ...
    <script>
      !function(t,e){var o,n,p,r;e.__SV||(window.posthog=e,e._i=[],e.init=function(i,s,a){function g(t,e){var o=e.split(".");2==o.length&&(t=t[o[0]],e=o[1]),t[e]=function(){t.push([e].concat(Array.prototype.slice.call(arguments,0)))}}(p=t.createElement("script")).type="text/javascript",p.async=!0,p.src=s.api_host.replace(".i.posthog.com","-assets.i.posthog.com")+"/static/array.js",(r=t.getElementsByTagName("script")[0]).parentNode.insertBefore(p,r);var u=e;for(void 0!==a?u=e[a]=[]:a="posthog",u.people=u.people||[],u.toString=function(t){var e="posthog";return"posthog"!==a&&(e+="."+a),t||(e+=" (stub)"),e},u.people.toString=function(){return u.toString(1)+".people (stub)"},o="init capture register register_once register_for_session unregister opt_out_capturing has_opted_out_capturing opt_in_capturing reset isFeatureEnabled getFeatureFlag getFeatureFlagPayload reloadFeatureFlags group identify setPersonProperties setPersonPropertiesForFlags resetPersonPropertiesForFlags setGroupPropertiesForFlags resetGroupPropertiesForFlags resetGroups onFeatureFlags addFeatureFlagsHandler onSessionId getSurveys getActiveMatchingSurveys renderSurvey canRenderSurvey getNextSurveyStep".split(" "),n=0;n<o.length;n++)g(u,o[n]);e._i.push([i,s,a])},e.__SV=1)}(document,window.posthog||[]);
      posthog.init('<ph_project_api_key>', {
          api_host: 'https://us.i.posthog.com',
          defaults: '2026-01-30',
      })
    </script>
  </head>
  <body>
    ...
  </body>
</html>

Track screen views

Recommended

Despite the name, the web analytics dashboard can be used to track screen views in mobile apps, too. Open your app and view some screens to generate some events.

To automatically capture screen views, you can use the PostHogObserver with your navigation:

Dart
import 'package:posthog_flutter/posthog_flutter.dart';

MaterialApp(
    navigatorObservers: [
        PosthogObserver(),
    ],
    // rest of your app
)

4
Next steps
Recommended
After installing PostHog and ensuring autocapture is enabled, head to your web analytics dashboard to see your data. And then check out our getting started guide.
PostHog tip: Web analytics works with anonymous events. This means if you are primarily using PostHog for web analytics, it can be significantly cheaper for you.

Flutter web analytics installation

Install the package

Platform setup

Track screen views

Next steps

Community questions

Was this page useful?