diff --git a/packages/core/accessibility/font-scale.android.ts b/packages/core/accessibility/font-scale.android.ts
index 0adec6c75..c8112ba25 100644
--- a/packages/core/accessibility/font-scale.android.ts
+++ b/packages/core/accessibility/font-scale.android.ts
@@ -11,6 +11,7 @@ function fontScaleChanged(origFontScale: number) {
 		Application.notify({
 			eventName: Application.fontScaleChangedEvent,
 			object: Application,
+			newValue: currentFontScale,
 		});
 	}
 }
diff --git a/packages/core/accessibility/font-scale.ios.ts b/packages/core/accessibility/font-scale.ios.ts
index 2b9c6f56e..5de596810 100644
--- a/packages/core/accessibility/font-scale.ios.ts
+++ b/packages/core/accessibility/font-scale.ios.ts
@@ -11,6 +11,7 @@ function fontScaleChanged(origFontScale: number) {
 		Application.notify({
 			eventName: Application.fontScaleChangedEvent,
 			object: Application,
+			newValue: currentFontScale,
 		});
 	}
 }
diff --git a/packages/core/application/index.d.ts b/packages/core/application/index.d.ts
index 3b3000dd4..f95a9c477 100644
--- a/packages/core/application/index.d.ts
+++ b/packages/core/application/index.d.ts
@@ -135,6 +135,16 @@ export interface SystemAppearanceChangedEventData extends ApplicationEventData {
 	newValue: 'light' | 'dark';
 }
 
+/**
+ * Event data containing information for font scale changed event.
+ */
+export interface FontScaleChangedEventData extends ApplicationEventData {
+	/**
+	 * New font scale value.
+	 */
+	newValue: number;
+}
+
 /**
  * Event data containing information about unhandled application errors.
  */
@@ -328,6 +338,8 @@ export function on(event: 'orientationChanged', callback: (args: OrientationChan
  */
 export function on(event: 'systemAppearanceChanged', callback: (args: SystemAppearanceChangedEventData) => void, thisArg?: any);
 
+export function on(event: 'fontScaleChanged', callback: (args: FontScaleChangedEventData) => void, thisArg?: any);
+
 /**
  * Gets the orientation of the application.
  * Available values: "portrait", "landscape", "unknown".
diff --git a/packages/core/index.d.ts b/packages/core/index.d.ts
index 2c202d540..53789a113 100644
--- a/packages/core/index.d.ts
+++ b/packages/core/index.d.ts
@@ -20,6 +20,7 @@ export declare const Application: {
 	lowMemoryEvent: string;
 	orientationChangedEvent: string;
 	systemAppearanceChangedEvent: string;
+	fontScaleChangedEvent: string;
 	systemAppearanceChanged: typeof systemAppearanceChanged;
 	getMainEntry: typeof getMainEntry;
 	getRootView: typeof getRootView;
diff --git a/packages/core/index.ts b/packages/core/index.ts
index 709ba7fc6..d40e172b2 100644
--- a/packages/core/index.ts
+++ b/packages/core/index.ts
@@ -5,7 +5,7 @@ import './globals';
 export { iOSApplication, AndroidApplication } from './application';
 export type { ApplicationEventData, LaunchEventData, OrientationChangedEventData, UnhandledErrorEventData, DiscardedErrorEventData, CssChangedEventData, LoadAppCSSEventData, AndroidActivityEventData, AndroidActivityBundleEventData, AndroidActivityRequestPermissionsEventData, AndroidActivityResultEventData, AndroidActivityNewIntentEventData, AndroidActivityBackPressedEventData, SystemAppearanceChangedEventData } from './application';
 
-import { launchEvent, displayedEvent, uncaughtErrorEvent, discardedErrorEvent, suspendEvent, resumeEvent, exitEvent, lowMemoryEvent, orientationChangedEvent, systemAppearanceChanged, systemAppearanceChangedEvent, getMainEntry, getRootView, _resetRootView, getResources, setResources, setCssFileName, getCssFileName, loadAppCss, addCss, on, off, notify, hasListeners, run, orientation, getNativeApplication, hasLaunched, android as appAndroid, ios as iosApp, systemAppearance } from './application';
+import { fontScaleChangedEvent, launchEvent, displayedEvent, uncaughtErrorEvent, discardedErrorEvent, suspendEvent, resumeEvent, exitEvent, lowMemoryEvent, orientationChangedEvent, systemAppearanceChanged, systemAppearanceChangedEvent, getMainEntry, getRootView, _resetRootView, getResources, setResources, setCssFileName, getCssFileName, loadAppCss, addCss, on, off, notify, hasListeners, run, orientation, getNativeApplication, hasLaunched, android as appAndroid, ios as iosApp, systemAppearance } from './application';
 export const Application = {
 	launchEvent,
 	displayedEvent,
@@ -18,6 +18,7 @@ export const Application = {
 	orientationChangedEvent,
 	systemAppearanceChangedEvent,
 	systemAppearanceChanged,
+	fontScaleChangedEvent,
 
 	getMainEntry,
 	getRootView,