If you have less than 100K MAU you can use Crowdin's SDK for free. The higher tiers are priced fairly based on the MAU.
Crowdin sends translations via Amazon CloudFront. Users instantly receive translations from the closest server.
User data is stored exclusively on Amazon Servers, never compromising on data security.
Deliver better app translations, faster
Send new translations from Crowdin to your application over-the-air with no need to update your app on Google Play or App Store. The Crowdin SDK for Android and iOS contains two additional components that you can connect: real-time translation preview and easy screenshots upload and tagging.
Сеть доставки контента "по воздуху"
Users receive the latest translations directly from a distribution on your Crowdin project. Save a lot of time when releasing new translations. No need to wait for them to be published via Google Play or App Store.
Translators can instantly preview translations they are making in Crowdin on their version of the application. Simplify LQA (linguistic quality assurance), so your team can do an in-context check of the translated content.
Project owner and managers can make screenshots right within the app version where this component is enabled. Screenshots will automatically appear in the project with tagged source strings.