Instant voice translator supports these languages:
- English (Irish)
- English (United States)
- English United Kingdom)
- Arabic (Egypt)
- Arabic (Saudi Arabia)
- Bulgarian (Bulgaria)
- Czech (Czech Republic)
- Chinese, mandarin Chinese (Traditional, Taiwan)
- Chinese, mandarin Chinese (simplified, Hongkong)
- Danish (Denmark)
- Finnish (Finland)
- French (France)
- French (Canada)
- Hindu (India)
- Dutch (Netherland)
- Croatian (Croatia)
- Indonesian (Indonesia)
- Italian (Italy)
- Japanese (Japan)
- Catalonian (Spain)
- Korean (South Korea)
- Hungarian (Hungary)
- Malaysian (Malaysia)
- German (Germany)
- Polish (Poland)
- Portuguese (Brazil)
- Portuguese (Portugal)
- Romanian (Romania)
- Russian (Russia)
- Greek (Greece)
- Slovakian (Slovakia)
- Slovenian (Slovenia)
- Spanish (Mexico)
- Spanish (Spain)
- Swedish (Sweden)
- Tamil (India)
- Telugu (India)
- Thai (Thailand)
- Turkish (Turkey)
- Ukrainian (Ukraine)
- Vietnamese (Vietnam)
As you can see there is a lot of them, more than 40 and probably in the future there will be even more.
This device has Czech and Catalonian but it doesn't have Farsi (Persian). Based on which measures do you decide which language should be in the supported language list?