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Locale IDs

Apptonomy uses its own version of locale IDs. If you’re curious about why that is, check the why section at the bottom of the page.

Name Platform ID App Store ID Google Play ID
Afrikaans af Not Supported af
Albanian sq Not Supported sq
Amharic am Not Supported am
Arabic ar_sa ar-SA ar
Armenian hy_am Not Supported hy-AM
Azerbaijani az_az Not Supported az-AZ
Bangla bn_bd Not Supported bn-BD
Basque eu_es Not Supported eu-ES
Belarusian be Not Supported be
Bulgarian bg Not Supported bg
Burmese my_mm Not Supported my-MM
Catalan ca ca ca
Chinese (Hong Kong) zh_hk Not Supported zh-HK
Chinese (Simplified) zh_cn zh-Hans zh-CN
Chinese (Traditional) zh_tw zh-Hant zh-TW
Croatian hr hr hr
Czech cs_cz cs cs-CZ
Danish da_dk da da-DK
Dutch nl_nl nl-NL nl-NL
English (Australia) en_au en-AU en-AU
English (Canada) en_ca en-CA en-CA
English (India) en_in Not Supported en-IN
English (S. Africa) en_za Not Supported en-ZA
English (Singapore) en_sg Not Supported en-SG
English (U.K.) en_gb en-GB en-GB
English (U.S.) en_us en-US en-US
Estonian et Not Supported et
Filipino fil Not Supported fil
Finnish fi_fi fi fi-FI
French (Canada) fr_ca fr-CA fr-CA
French (France) fr_fr fr-FR fr-FR
Galician gl_es Not Supported gl-ES
Georgian ka_ge Not Supported ka-GE
German de_de de-DE de-DE
Greek el_gr el el-GR
Gujarati gu Not Supported gu
Hebrew iw_il he iw-IL
Hindi hi_in hi hi-IN
Hungarian hu_hu hu hu-HU
Icelandic is_is Not Supported is-IS
Indonesian id id id
Italian it_it it it-IT
Japanese ja_jp ja ja-JP
Kannada kn_in Not Supported kn-IN
Kazakh kk Not Supported kk
Khmer km_kh Not Supported km-KH
Korean ko_kr ko ko-KR
Kyrgyz ky_kg Not Supported ky-KG
Lao lo_la Not Supported lo-LA
Latvian lv Not Supported lv
Lithuanian lt Not Supported lt
Macedonian mk_mk Not Supported mk-MK
Malay ms ms ms
Malay (Malaysia) ms_my Not Supported ms-MY
Malayalam ml_in Not Supported ml-IN
Marathi mr_in Not Supported mr-IN
Mongolian mn_mn Not Supported mn-MN
Nepali ne_np Not Supported ne-NP
Norwegian no_no no no-NO
Persian fa Not Supported fa
Persian fa_ae Not Supported fa-AE
Persian fa_af Not Supported fa-AF
Persian fa_ir Not Supported fa-IR
Polish pl_pl pl pl-PL
Portuguese (Brazil) pt_br pt-BR pt-BR
Portuguese (Portugal) pt_pt pt-PT pt-PT
Punjabi pa Not Supported pa
Romanian ro ro ro
Romansh rm Not Supported rm
Russian ru_ru ru ru-RU
Serbian sr Not Supported sr
Sinhala si_lk Not Supported si-LK
Slovak sk sk sk
Slovenian sl Not Supported sl
Spanish (Latin America) es_419 es-MX es-419
Spanish (Spain) es_es es-ES es-ES
Spanish US es_us Not Supported es-US
Swahili sw Not Supported sw
Swedish sv_se sv sv-SE
Tamil ta_in Not Supported ta-IN
Telugu te_in Not Supported te-IN
Thai th th th
Turkish tr_tr tr tr-TR
Ukrainian uk uk uk
Urdu ur Not Supported ur
Vietnamese vi vi vi
Zulu zu Not Supported zu
  1. ISO 639 provides only language, not regional indication.
  2. ISO 3166 provides only country and region codes.
  3. ISO 15924 provides four-letter writing system codes.
  4. App Store Connect uses case sensitive locale indicators with an ISO639 code plus an optional ISO3166 or ISO15924 code. A dash is used when the optional extension is present.
  5. Google Play Console uses case sensitive locale indicators with an ISO639 code plus an optional ISO3166 code. A dash is used when the optional extension is present. Additionally Google Play uses a three letter fil for Filipino.

For Apptonomy we had the following requirements:

  1. The code must be usable on URLs and in databases directly, without encoding.
  2. The code must have same-casing throughout.
  3. The code must capture language + region.
  4. The code must be directly mappable to both App Store and Google Play locale IDs with minimal external knowledge required.
  5. The code must not lose any language-region precision compared to App Store & Google Play locale IDs.

So we settled on lowercase ISO639 language code underscore lowercase ISO3166 country/region code.

This format still requires some external knowledge to convert into App Store and Google Play codes (e.g. for Chinese) but generally satisfies the requirements.