diff --git a/MIGRATION.md b/MIGRATION.md
index e0fe6cf12790..2e5b4eae8b12 100644
--- a/MIGRATION.md
+++ b/MIGRATION.md
@@ -5,6 +5,7 @@
 - [From version 3.4.x to 4.0.x](#from-version-34x-to-40x)
   - [Keyboard shortcuts moved](#keyboard-shortcuts-moved)
   - [Removed addWithInfo](#removed-add-with-info)
+  - [Removed RN packager](#removed-rn-packager)
   - [Removed RN addons](#removed-rn-addons)
   - [Storyshots changes](#storyshots-changes)
   - [Webpack 4](#webpack-4)
@@ -27,7 +28,7 @@
 
 ## From version 3.4.x to 4.0.x
 
-With 4.0 as our first major release in over a year, we've collected a lot of cleanup tasks. All deprecations have been marked for months, so we hope that there will be no significant impact on your project.
+With 4.0 as our first major release in over a year, we've collected a lot of cleanup tasks. Most of the deprecations have been marked for months, so we hope that there will be no significant impact on your project.
 
 ### Generic addons
 
@@ -58,6 +59,14 @@ import { number } from "@storybook/addon-knobs";
 
 `Addon-info`'s `addWithInfo` has been marked deprecated since 3.2. In 4.0 we've removed it completely. See the package [README](https://github.com/storybooks/storybook/blob/master/addons/info/README.md) for the proper usage.
 
+### Removed RN packager
+
+Since storybook version v4.0 packager is removed from storybook. The suggested storybook usage is to include it inside your app.
+If you want to keep the old behaviour, you have to start the packager yourself with a different project root.
+`npm run storybook start -p 7007 | react-native start --projectRoot storybook`
+
+Removed cli options: `--packager-port --root --projectRoots -r, --reset-cache --skip-packager --haul  --platform --metro-config` 
+
 ### Removed RN addons
 
 The `@storybook/react-native` had built-in addons (`addon-actions` and `addon-links`) that have been marked as deprecated since 3.x. They have been fully removed in 4.x. If your project still uses the built-ins, you'll need to add explicit dependencies on `@storybook/addon-actions` and/or `@storybook/addon-links` and import directly from those packages.
diff --git a/app/react-native/package.json b/app/react-native/package.json
index f3113296f981..905ae51715f0 100644
--- a/app/react-native/package.json
+++ b/app/react-native/package.json
@@ -42,10 +42,8 @@
     "babel-plugin-transform-regenerator": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.7.0",
-    "babel-preset-flow": "^6.23.0",
     "babel-preset-minify": "^0.4.2",
     "babel-preset-react": "^6.24.1",
-    "babel-register": "^6.26.0",
     "babel-runtime": "^6.26.0",
     "case-sensitive-paths-webpack-plugin": "^2.1.2",
     "commander": "^2.17.0",
diff --git a/app/react-native/readme.md b/app/react-native/readme.md
index a9d395801366..5c329aeb9686 100644
--- a/app/react-native/readme.md
+++ b/app/react-native/readme.md
@@ -15,14 +15,11 @@ npm -g i @storybook/cli
 storybook init
 ```
 
-After you have installed, there are additional steps for `create-react-native-app` apps. See the section for details, otherwise skip to [Start Storybook](#start-storybook)
-to see the next step.
+The next thing you need to do is make Storybook UI visible in your app.
 
-## Create React Native App (CRNA)
+### CRNA, React Native vanilla
 
-If you run `storybook init` inside a CRNA app, you'll be notified that there is an extra step required to use Storybook.
-
-The easiest way to use Storybook inside CRNA is to simply replace your App with the Storybook UI, which is possible by replacing `App.js` with a single line of code:
+The easiest way to use Storybook is to simply replace your App with the Storybook UI, which is possible by replacing `App.js` with a single line of code:
 
 ```js
 export default from './storybook';
@@ -39,10 +36,13 @@ import App from './app';
 module.exports = __DEV__ ? StorybookUI : App;
 ```
 
-Alternatively, `StorybookUI` is simply a RN `View` component that can be embedded anywhere in your RN application, e.g. on a tab or within an admin screen.
+### React Native Navigation, other complex use cases
+
+`StorybookUI` is simply a RN `View` component that can be embedded anywhere in your RN application, e.g. on a tab or within an admin screen.
 
-## Start Storybook
 
+## Start Storybook server (optional)
+If you want to control storybook from browser/VS Code/websockets you need to start the server.
 After initial setup start the storybook server with the storybook npm script.
 
 ```shell
@@ -51,6 +51,15 @@ npm run storybook
 
 Now, you can open <http://localhost:7007> to view your storybook menus in the browser.
 
+## Old standalone behaviour
+Since storybook version v4.0 packager is removed from storybook.
+The suggested storybook usage is to include it inside your app.
+If you want to keep the old behaviour, you have to start the packager yourself with a different project root.
+ 
+```
+npm run storybook start -p 7007 | react-native start --projectRoot storybook
+```
+
 ## Start App
 
 To see your Storybook stories on the device, you should start your mobile app for the `<platform>` of your choice (typically `ios` or `android`). (Note that due to an implementation detail, your stories will only show up in the left pane of your browser window after your device has connected to this storybook server.)
@@ -68,41 +77,6 @@ Once your app is started, changing the selected story in web browser will update
 If you are using Android and you get the following error after running the app: `'websocket: connection error', 'Failed to connect to localhost/127.0.0.1:7007'`, you have to forward the port 7007 on your device/emulator to port 7007 on your local machine with the following command:
 `adb reverse tcp:7007 tcp:7007`
 
-## Using Haul-cli
-
-[Haul](https://github.com/callstack-io/haul) is an alternative to the react-native packager and has several advantages in that it allows you to define your own loaders, and handles symlinks better.
-
-If you want to use haul instead of the react-native packager, modify the storybook npm script to:
-
-```sh
-storybook start -p 7007 --haul webpack.haul.storybook.js --platform android | ios | all
-```
-
-Where webpack.haul.storybook.js should look something like this:
-
-```js
-module.exports = ({ platform }) => ({
-  entry: `./storybook/index.${platform}.js`,
-  // any other haul config here.
-});
-```
-
-## Seamless Typescript Integration
-
-*Note: These instructions are for react-native >= 0.45, @storybook/react-native >= 4.0.0-alpha.2 or higher and the (default) [metro](https://github.com/facebook/metro) bundler*
-
-For seamless type integration (no intermediate build step) we use the custom rn cli config feature and the [react-native-typescript-transformer](https://github.com/ds300/react-native-typescript-transformer) project 
-
-First follow the instructions [here](https://github.com/ds300/react-native-typescript-transformer#step-1-install).
-
-Now update your storybook `package.json` script to the following
-
-    "scripts": {
-       "storybook": "storybook start --metro-config $PWD/rn-cli.config.js -p 7007"
-    }
-
-The metro bundler requires an absolute path to the config. The above setup assumes the `rn-cli.config.js` is in the root of your project or next to your `package.json`
-
 ## Start Command Parameters
 
 The following parameters can be passed to the start command:
@@ -112,32 +86,16 @@ The following parameters can be passed to the start command:
     host to listen on
 -p, --port <port>
     port to listen on
---haul <configFile>
-    use haul with config file
---platform <ios|android|all>
-    build platform-specific build
 -s, --secured
     whether server is running on https
 -c, --config-dir [dir-name]
     storybook config directory
---metro-config [relative-config-path]
-    Metro Bundler Custom config
 -e, --environment [environment]
     DEVELOPMENT/PRODUCTION environment for webpack
--r, --reset-cache
-    reset react native packager
---skip-packager
-    run only storybook server
 -i, --manual-id
     allow multiple users to work with same storybook
 --smoke-test
     Exit after successful start
---packager-port <packagerPort>
-    Custom packager port
---root [root]
-    Add additional root(s) to be used by the packager in this project
---projectRoots [projectRoots]
-    Override the root(s) to be used by the packager
 ```
 
 ## getStorybookUI Options
diff --git a/app/react-native/src/bin/storybook-start.js b/app/react-native/src/bin/storybook-start.js
index 1ca027fd48c1..fb660525e743 100644
--- a/app/react-native/src/bin/storybook-start.js
+++ b/app/react-native/src/bin/storybook-start.js
@@ -1,6 +1,5 @@
 #!/usr/bin/env node
 /* eslint-disable no-console */
-import { exec } from 'child_process';
 import path from 'path';
 import program from 'commander';
 import Server from '../server';
@@ -8,19 +7,11 @@ import Server from '../server';
 program
   .option('-h, --host <host>', 'host to listen on')
   .option('-p, --port <port>', 'port to listen on')
-  .option('--haul <configFile>', 'use haul with config file')
-  .option('--platform <ios|android|all>', 'build platform-specific build')
   .option('-s, --secured', 'whether server is running on https')
   .option('-c, --config-dir [dir-name]', 'storybook config directory')
-  .option('--metro-config [relative-config-path]', 'Metro Bundler Custom config')
   .option('-e, --environment [environment]', 'DEVELOPMENT/PRODUCTION environment for webpack')
-  .option('-r, --reset-cache', 'reset react native packager')
-  .option('--skip-packager', 'run only storybook server')
   .option('-i, --manual-id', 'allow multiple users to work with same storybook')
   .option('--smoke-test', 'Exit after successful start')
-  .option('--packager-port <packagerPort>', 'Custom packager port')
-  .option('--root [root]', 'Add additional root(s) to be used by the packager in this project')
-  .option('--projectRoots [projectRoots]', 'Override the root(s) to be used by the packager')
   .parse(process.argv);
 
 const projectDir = path.resolve();
@@ -48,61 +39,3 @@ server.listen(...listenAddr, err => {
     process.exit(0);
   }
 });
-
-if (!program.skipPackager) {
-  let symlinks = [];
-
-  let roots = [projectDir];
-
-  if (program.root) {
-    roots = roots.concat(program.root.split(',').map(root => path.resolve(root)));
-  }
-
-  try {
-    // eslint-disable-next-line global-require
-    require('babel-register')({
-      presets: [require.resolve('babel-preset-flow')],
-      ignore: false,
-      babelrc: false,
-    });
-
-    // eslint-disable-next-line global-require
-    const findSymlinkedModules = require('react-native/local-cli/util/findSymlinkedModules');
-    symlinks = roots.reduce((arr, rootPath) => arr.concat(findSymlinkedModules(rootPath, roots)), [
-      ...roots,
-    ]);
-  } catch (e) {
-    console.warn(`Unable to load findSymlinksPaths: ${e.message}`, e);
-  }
-
-  let projectRoots = (configDir === projectDir ? [] : [configDir]).concat(symlinks);
-
-  if (program.projectRoots) {
-    projectRoots = projectRoots.concat(
-      program.projectRoots.split(',').map(root => path.resolve(root))
-    );
-  }
-
-  let cliCommand = 'react-native start';
-
-  if (program.metroConfig) {
-    cliCommand += ` --config ${program.metroConfig}`;
-  }
-
-  if (program.haul) {
-    const platform = program.platform || 'all';
-    cliCommand = `haul start --config ${program.haul} --platform ${platform}`;
-  }
-  // RN packager
-  exec(
-    [
-      cliCommand,
-      `--projectRoots ${projectRoots.join(',')}`,
-      program.resetCache && '--reset-cache',
-      program.packagerPort && `--port=${program.packagerPort}`,
-    ]
-      .filter(x => x)
-      .join(' '),
-    { async: true }
-  );
-}