diff --git a/src/libs/BootSplash/index.native.js b/src/libs/BootSplash/index.native.ts
similarity index 91%
rename from src/libs/BootSplash/index.native.js
rename to src/libs/BootSplash/index.native.ts
index 942b3cadb74a..0790b4de89bc 100644
--- a/src/libs/BootSplash/index.native.js
+++ b/src/libs/BootSplash/index.native.ts
@@ -3,7 +3,7 @@ import Log from '../Log';
 
 const BootSplash = NativeModules.BootSplash;
 
-function hide() {
+function hide(): Promise<void> {
     Log.info('[BootSplash] hiding splash screen', false);
     return BootSplash.hide();
 }
diff --git a/src/libs/BootSplash/index.js b/src/libs/BootSplash/index.ts
similarity index 62%
rename from src/libs/BootSplash/index.js
rename to src/libs/BootSplash/index.ts
index c169f380a8eb..24842fe631f4 100644
--- a/src/libs/BootSplash/index.js
+++ b/src/libs/BootSplash/index.ts
@@ -1,20 +1,21 @@
 import Log from '../Log';
+import {VisibilityStatus} from './types';
 
-function resolveAfter(delay) {
-    return new Promise((resolve) => setTimeout(resolve, delay));
+function resolveAfter(delay: number): Promise<void> {
+    return new Promise<void>((resolve) => setTimeout(resolve, delay));
 }
 
-function hide() {
+function hide(): Promise<void> {
     Log.info('[BootSplash] hiding splash screen', false);
 
     return document.fonts.ready.then(() => {
         const splash = document.getElementById('splash');
         if (splash) {
-            splash.style.opacity = 0;
+            splash.style.opacity = '0';
         }
 
         return resolveAfter(250).then(() => {
-            if (!splash || !splash.parentNode) {
+            if (!splash?.parentNode) {
                 return;
             }
             splash.parentNode.removeChild(splash);
@@ -22,7 +23,7 @@ function hide() {
     });
 }
 
-function getVisibilityStatus() {
+function getVisibilityStatus(): Promise<VisibilityStatus> {
     return Promise.resolve(document.getElementById('splash') ? 'visible' : 'hidden');
 }
 
diff --git a/src/libs/BootSplash/types.ts b/src/libs/BootSplash/types.ts
new file mode 100644
index 000000000000..2329d5315817
--- /dev/null
+++ b/src/libs/BootSplash/types.ts
@@ -0,0 +1,9 @@
+type VisibilityStatus = 'visible' | 'hidden';
+
+type BootSplashModule = {
+    navigationBarHeight: number;
+    hide: () => Promise<void>;
+    getVisibilityStatus: () => Promise<VisibilityStatus>;
+};
+
+export type {BootSplashModule, VisibilityStatus};
diff --git a/src/types/modules/react-native.d.ts b/src/types/modules/react-native.d.ts
index 1b0b39e5f67d..ebe0974db690 100644
--- a/src/types/modules/react-native.d.ts
+++ b/src/types/modules/react-native.d.ts
@@ -1,9 +1,14 @@
 /* eslint-disable @typescript-eslint/consistent-type-definitions */
 import 'react-native';
+import {BootSplashModule} from '../../libs/BootSplash/types';
 
 declare module 'react-native' {
     interface TextInput {
         // Typescript type declaration is missing in React Native for setting text selection.
         setSelection: (start: number, end: number) => void;
     }
+
+    interface NativeModulesStatic {
+        BootSplash: BootSplashModule;
+    }
 }