PhraseApp OTA is currently in beta and part of our Pro plan and higher.


PhraseApp Over the Air for iOS lets you update translations in your iOS app without having to release it every single time.

By including our SDK, your app will check for updated translations in PhraseApp regularly and download them in the background.

Install the SDK

You can install the SDK manually, via Carthage or Cocoa Pods:


Add the following line into your Cartfile:

binary "" ~> 0.1.0

Run carthage update  and add the PhraseApp.framework  to your project by following the steps mentioned in the Carthage documentation.

Cocoa Pods

Add the following line into your Podfile:

pod 'PhraseApp'

Run pod install  for installing PhraseApp. If you are new to CocoaPods read the Getting Started guide for further instructions.  

Manual Download

  1. Download the latest release from 
  2. Add PhraseApp.framework in Xcode as linked binary to your target.


Initialize the SDK by calling the following code:

   distributionID: <Distribution ID>,
   environmentToken: <Environment Secret>

To update your localization files simply call PhraseApp.shared.checkForUpdates() 

Note: This method will raise an exception if you did not set up the SDK properly

We recommend to simply call both function within your AppDelegate in the applicationDidFinishLaunchingWithOptions  method.


In case you want to handle successful translation updates you can attach a callback handler:

  onSuccess: { ... }
  onFailure: { ... }

Making updates visible

Usually, the updated translations will be automatically visible to the user the next time app launches. If you want to enforce the new translations to be visible immediately, you need to handle this yourself, e.g. by reloading the ViewController on a successful callback:

func reloadRootViewController() {
  DispatchQueue.main.async {
    let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    appDelegate.window?.rootViewController = storyboard.instantiateInitialViewController()

Note: This does not work for Storyboards

Debug Mode

If need further informations you can enable the debug mode to get additional logging of the PhraseApp.framework into the console:
PhraseApp.shared.debugMode = true 


In case new translations cannot be fetched from PhraseApp via the SDK we will always use the latest translation files that the installation received. If the App never received new files from PhraseApp it will use the compiled translation files of your app. This prevents errors in case of any technical difficulties or networking errors. Therefore we recommend to keep your translation files that are compiled into the app up to date with every release.


The SDK will communicate with the PhraseApp Over the Air service in order to check for updates and includes the following details with each request:

  • Device identifier (e.g. "F3AFCB10-80A2-84CB-94C0-27F5EF58876D". Unique for this app and therefore does not allow tracking a specific device.)
  • App version (e.g. "1.2.0")
  • Last update of the translation file (e.g. "1542187679")
  • SDK version (e.g. "1.0.0")
  • Locale (e.g. "de-DE")
  • File format (e.g. "strings")
  • Client (e.g. "ios")
  • Distribution ID (ID of your distribution in PhraseApp)
  • Environment secret (to distinguish between development from production)


Translations are not updated

  • Confirm that the distribution id and environment secret are correct.
  • Check whether you created a release on PhraseApp for your current app version
  • Updated translations are visible automatically after the next app launch. Try reloading the ViewController to make changes appear immediately.

The wrong version of translations are used

  • Please make sure that you have the CFBundleShortVersionString  for the app set and are using semantic versioning (e.g. <major>.<minor>.<point>).
  • Check on PhraseApp whether you do have a release with the latest translations and the current app version.
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