Royal Society Mobile : Read and Write is a two-in-one mobile dictionary featuring pronunciation and spelling manuals from the Royal Institute. Spelling and pronunciation will never be your problem again. You can look for correct spelling and pronunciation with ease via smart search and trace back to your search history. It also features pronunciation rules for Thai proper names, consonants, vowels, tone marks, ordinal numbers, and punctuation marks, spelling rules for pronunciation and chemical elements. It perfectly suits the needs of students, teachers, lecturers, and Thai language enthusiasts. This application is a product of collaboration between Office of the Royal Society and National Electronics and Computer Technology Center (NECTEC).