diff --git a/packages/core/index.d.ts b/packages/core/index.d.ts
index c456cbb50..02238aeeb 100644
--- a/packages/core/index.d.ts
+++ b/packages/core/index.d.ts
@@ -68,7 +68,7 @@ export declare const Http: {
 export { ImageAsset, ImageAssetOptions } from './image-asset';
 export { ImageSource } from './image-source';
 export { ModuleNameResolver, ModuleListProvider, PlatformContext, _setResolver } from './module-name-resolver';
-export { Screen, IDevice, Device, platformNames } from './platform';
+export { isAndroid, isIOS, Screen, IDevice, Device, platformNames } from './platform';
 // Profiling
 export { InstrumentationMode, TimerInfo, profile, enable as profilingEnable, disable as profilingDisable, time as profilingTime, uptime as profilingUptime, start as profilingStart, stop as profilingStop, isRunning as profilingIsRunning, dumpProfiles as profilingDumpProfiles, resetProfiles as profilingResetProfiles, startCPUProfile as profilingStartCPU, stopCPUProfile as profilingStopCPU } from './profiling';
 export { encoding } from './text';
diff --git a/packages/core/index.ts b/packages/core/index.ts
index c21c6a2ae..4289d38f5 100644
--- a/packages/core/index.ts
+++ b/packages/core/index.ts
@@ -89,7 +89,7 @@ export { ImageAsset, ImageAssetOptions } from './image-asset';
 
 export { ImageSource } from './image-source';
 export { ModuleNameResolver, ModuleListProvider, PlatformContext, _setResolver } from './module-name-resolver';
-export { Screen, IDevice, Device, platformNames } from './platform';
+export { isAndroid, isIOS, Screen, IDevice, Device, platformNames } from './platform';
 
 // Profiling
 export { InstrumentationMode, TimerInfo, profile, enable as profilingEnable, disable as profilingDisable, time as profilingTime, uptime as profilingUptime, start as profilingStart, stop as profilingStop, isRunning as profilingIsRunning, dumpProfiles as profilingDumpProfiles, resetProfiles as profilingResetProfiles, startCPUProfile as profilingStartCPU, stopCPUProfile as profilingStopCPU } from './profiling';