In the last decade, we have seen a number of studies come to life in which the collection of data for linguistic research has not followed a traditional path of holding in-person interviews or experiments, or using surveys for eliciting judgements, but instead have made use of smartphone technology and applications for collecting data. The current collection is the first to include papers with reflections from the linguistics community about the use of smartphone technology for linguistic research. The scope of the projects presented in this collection is a broad one. They have the mode of data collection, i.e. through a phone, in common, but all present different opportunities and challenges. The studies discussed in this introduction use smartphones to investigate language variation and change, clinical linguistics, psycholinguistics, and the sociology of language. Our hope is that this issue will provide ideas and inspiration, as well as access to readily usable tools, to keep researchers working, in a remote fashion, towards increasing our understanding the human competence of language.