This iPhone application is a guide for traveling with Vietnam Language. This is intended for foreigners who are in Vietnam and to make good communication with Vietnam people. There are 9 useful main categories and related sub-categories which can easily find and use according to time and place. Now there are about 1500 daily usages in English to Vietnam, Vietnam to English. Furthermore user can easily change setting for a language switch – English to Vietnam, Vietnam to English. Searching is also added here in order to search desired keywords in a short time.