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diff --git a/cordova/lib/check_reqs.js b/cordova/lib/check_reqs.js
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+/*
+       Licensed to the Apache Software Foundation (ASF) under one
+       or more contributor license agreements.  See the NOTICE file
+       distributed with this work for additional information
+       regarding copyright ownership.  The ASF licenses this file
+       to you under the Apache License, Version 2.0 (the
+       "License"); you may not use this file except in compliance
+       with the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+       Unless required by applicable law or agreed to in writing,
+       software distributed under the License is distributed on an
+       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+       KIND, either express or implied.  See the License for the
+       specific language governing permissions and limitations
+       under the License.
+*/
+
+'use strict';
+
+const Q = require('q');
+const shell = require('shelljs');
+const util = require('util');
+const versions = require('./versions');
+
+const SUPPORTED_OS_PLATFORMS = [ 'darwin' ];
+
+const XCODEBUILD_MIN_VERSION = '7.0.0';
+const XCODEBUILD_NOT_FOUND_MESSAGE =
+    'Please install version ' + XCODEBUILD_MIN_VERSION + ' or greater from App Store';
+
+const IOS_DEPLOY_MIN_VERSION = '1.9.2';
+const IOS_DEPLOY_NOT_FOUND_MESSAGE =
+    'Please download, build and install version ' + IOS_DEPLOY_MIN_VERSION + ' or greater' +
+    ' from https://github.com/phonegap/ios-deploy into your path, or do \'npm install -g ios-deploy\'';
+
+const COCOAPODS_MIN_VERSION = '1.0.1';
+const COCOAPODS_NOT_FOUND_MESSAGE =
+    'Please install version ' + COCOAPODS_MIN_VERSION + ' or greater from https://cocoapods.org/';
+const COCOAPODS_NOT_SYNCED_MESSAGE =
+    'The CocoaPods repo has not been synced yet, this will take a long time (approximately 500MB as of Sept 2016). Please run `pod setup` first to sync the repo.';
+const COCOAPODS_SYNCED_MIN_SIZE = 475; // in megabytes
+const COCOAPODS_SYNC_ERROR_MESSAGE =
+    'The CocoaPods repo has been created, but there appears to be a sync error. The repo size should be at least ' + COCOAPODS_SYNCED_MIN_SIZE + '. Please run `pod setup --verbose` to sync the repo.';
+const COCOAPODS_REPO_NOT_FOUND_MESSAGE = 'The CocoaPods repo at ~/.cocoapods was not found.';
+
+/**
+ * Checks if xcode util is available
+ * @return {Promise} Returns a promise either resolved with xcode version or rejected
+ */
+module.exports.run = module.exports.check_xcodebuild = function () {
+    return checkTool('xcodebuild', XCODEBUILD_MIN_VERSION, XCODEBUILD_NOT_FOUND_MESSAGE);
+};
+
+/**
+ * Checks if ios-deploy util is available
+ * @return {Promise} Returns a promise either resolved with ios-deploy version or rejected
+ */
+module.exports.check_ios_deploy = function () {
+    return checkTool('ios-deploy', IOS_DEPLOY_MIN_VERSION, IOS_DEPLOY_NOT_FOUND_MESSAGE);
+};
+
+module.exports.check_os = function () {
+    // Build iOS apps available for OSX platform only, so we reject on others platforms
+    return os_platform_is_supported() ?
+        Q.resolve(process.platform) :
+        Q.reject('Cordova tooling for iOS requires Apple macOS');
+};
+
+function os_platform_is_supported () {
+    return (SUPPORTED_OS_PLATFORMS.indexOf(process.platform) !== -1);
+}
+
+function check_cocoapod_tool (toolChecker) {
+    toolChecker = toolChecker || checkTool;
+    if (os_platform_is_supported()) { // CB-12856
+        return toolChecker('pod', COCOAPODS_MIN_VERSION, COCOAPODS_NOT_FOUND_MESSAGE, 'CocoaPods');
+    } else {
+        return Q.resolve({
+            'ignore': true,
+            'ignoreMessage': `CocoaPods check and installation ignored on ${process.platform}`
+        });
+    }
+}
+
+/**
+ * Checks if cocoapods repo size is what is expected
+ * @return {Promise} Returns a promise either resolved or rejected
+ */
+module.exports.check_cocoapods_repo_size = function () {
+    return check_cocoapod_tool()
+        .then(function (toolOptions) {
+            // check size of ~/.cocoapods repo
+            let commandString = util.format('du -sh %s/.cocoapods', process.env.HOME);
+            let command = shell.exec(commandString, { silent: true });
+            // command.output is e.g "750M   path/to/.cocoapods", we just scan the number
+            let size = toolOptions.ignore ? 0 : parseFloat(command.output);
+
+            if (toolOptions.ignore || command.code === 0) { // success, parse output
+                return Q.resolve(size, toolOptions);
+            } else { // error, perhaps not found
+                return Q.reject(util.format('%s (%s)', COCOAPODS_REPO_NOT_FOUND_MESSAGE, command.output));
+            }
+        })
+        .then(function (repoSize, toolOptions) {
+            if (toolOptions.ignore || COCOAPODS_SYNCED_MIN_SIZE <= repoSize) { // success, expected size
+                return Q.resolve(toolOptions);
+            } else {
+                return Q.reject(COCOAPODS_SYNC_ERROR_MESSAGE);
+            }
+        });
+};
+
+/**
+ * Checks if cocoapods is available, and whether the repo is synced (because it takes a long time to download)
+ * @return {Promise} Returns a promise either resolved or rejected
+ */
+module.exports.check_cocoapods = function (toolChecker) {
+    return check_cocoapod_tool(toolChecker)
+        // check whether the cocoapods repo has been synced through `pod repo` command
+        // a value of '0 repos' means it hasn't been synced
+        .then(function (toolOptions) {
+            let code = shell.exec('pod repo | grep -e "^0 repos"', { silent: true }).code;
+            let repoIsSynced = (code !== 0);
+
+            if (toolOptions.ignore || repoIsSynced) {
+                // return check_cocoapods_repo_size();
+                // we could check the repo size above, but it takes too long.
+                return Q.resolve(toolOptions);
+            } else {
+                return Q.reject(COCOAPODS_NOT_SYNCED_MESSAGE);
+            }
+        });
+};
+
+/**
+ * Checks if specific tool is available.
+ * @param  {String} tool       Tool name to check. Known tools are 'xcodebuild' and 'ios-deploy'
+ * @param  {Number} minVersion Min allowed tool version.
+ * @param  {String} message    Message that will be used to reject promise.
+ * @param  {String} toolFriendlyName  Friendly name of the tool, to report to the user. Optional.
+ * @return {Promise}           Returns a promise either resolved with tool version or rejected
+ */
+function checkTool (tool, minVersion, message, toolFriendlyName) {
+    toolFriendlyName = toolFriendlyName || tool;
+
+    // Check whether tool command is available at all
+    let tool_command = shell.which(tool);
+    if (!tool_command) {
+        return Q.reject(toolFriendlyName + ' was not found. ' + (message || ''));
+    }
+
+    // check if tool version is greater than specified one
+    return versions.get_tool_version(tool).then(function (version) {
+        version = version.trim();
+        return versions.compareVersions(version, minVersion) >= 0 ?
+            Q.resolve({ 'version': version }) :
+            Q.reject('Cordova needs ' + toolFriendlyName + ' version ' + minVersion +
+              ' or greater, you have version ' + version + '. ' + (message || ''));
+    });
+}
+
+/**
+ * Object that represents one of requirements for current platform.
+ * @param {String}  id        The unique identifier for this requirements.
+ * @param {String}  name      The name of requirements. Human-readable field.
+ * @param {Boolean} isFatal   Marks the requirement as fatal. If such requirement will fail
+ *                            next requirements' checks will be skipped.
+ */
+let Requirement = function (id, name, isFatal) {
+    this.id = id;
+    this.name = name;
+    this.installed = false;
+    this.metadata = {};
+    this.isFatal = isFatal || false;
+};
+
+/**
+ * Methods that runs all checks one by one and returns a result of checks
+ * as an array of Requirement objects. This method intended to be used by cordova-lib check_reqs method
+ *
+ * @return Promise<Requirement[]> Array of requirements. Due to implementation, promise is always fulfilled.
+ */
+module.exports.check_all = function () {
+
+    const requirements = [
+        new Requirement('os', 'Apple macOS', true),
+        new Requirement('xcode', 'Xcode'),
+        new Requirement('ios-deploy', 'ios-deploy'),
+        new Requirement('CocoaPods', 'CocoaPods')
+    ];
+
+    let result = [];
+    let fatalIsHit = false;
+
+    let checkFns = [
+        module.exports.check_os,
+        module.exports.check_xcodebuild,
+        module.exports.check_ios_deploy,
+        module.exports.check_cocoapods
+    ];
+
+    // Then execute requirement checks one-by-one
+    return checkFns.reduce(function (promise, checkFn, idx) {
+        return promise.then(function () {
+            // If fatal requirement is failed,
+            // we don't need to check others
+            if (fatalIsHit) return Q();
+
+            let requirement = requirements[idx];
+            return checkFn()
+                .then(function (version) {
+                    requirement.installed = true;
+                    requirement.metadata.version = version;
+                    result.push(requirement);
+                }, function (err) {
+                    if (requirement.isFatal) fatalIsHit = true;
+                    requirement.metadata.reason = err;
+                    result.push(requirement);
+                });
+        });
+    }, Q())
+        .then(function () {
+            // When chain is completed, return requirements array to upstream API
+            return result;
+        });
+};