1. A method of crowdsourcing translations, the method comprising, by one or more computing devices: accessing, by one or more of the computing devices, one or more translations for each text string of a plurality of text strings; determining, by one or more of the computing devices, a priority value for each text string of the plurality of text strings, wherein the priority value for the text string is based on one or more reliability-values of the one or more translations for the text string, wherein the one or more reliability-values comprise a best-reliability-value of a first text string, wherein the best-reliability-value is a reliability-value of a best translation for the first text string, the best translation having a reliability-value greater than the reliability-values of all other translations for the first text string; determining that the best-reliability-value of the first text string is within a range of reliability-values below a threshold reliability-value, wherein the threshold reliability-value is a reliability-value above which the best translation is suitable for publishing; in response to determining that the best-reliability-value of the first text string is within the range of reliability-values below a threshold reliability-value, increasing the priority value for the first text string; selecting, by one or more of the computing devices, a particular text string from the plurality of text strings based on its priority value; and sending, from one or more of the computing devices to a client system, instructions configured to display, on a user interface of the client system, a translation prompt comprising the particular text string.