The Yandex Translate app can translate texts offline.
English and Russian offline dictionaries are available by default. To translate into other languages offline, you need to download their respective dictionaries.
For example, to translate from English to Turkish offline, you need to download the Turkish dictionary.
To download offline translations, do the following:
If you download dictionaries in the app, offline translation will work automatically without internet connection.
If there is a signal, but it's very unstable, turn on offline mode manually.
Offline translation isn't working
Make sure you have both offline dictionaries installed. For example, if you want to translate from Russian to French, download both Russian and French dictionaries.