Heritage tourism is a trip traveling in certain areas that have historical value and ancestral heritage, such as temples, museums, palaces, etc. Indonesia is a country that has diverse historical heritages that have the potential to be developed be-cause there are historical sites and are considered as tourism potential. Technolo-gy plays a vital role in the development of heritage tourism to facilitate the deliv-ery of information to tourists, one of which is a mobile application. The proposed application design is a mobile application design with a gamification approach to facilitate tourists to obtain information and travel experiences to explore exciting tourist attractions. The gamification approach is used as a unique attraction where tourists are wrongly venturing for the concept of the game in conveying infor-mation using element games. This research was conducted in 3 temples, namely Gedongsongo temple, Prambanan temple, and Borobudur temple. The prototype design test was conducted on 100 tourists who visited 3 of the temple's tourist at-tractions. The results showed 86% of users agreed with the proposed prototype design. Based on the 95% confidence scale, shows that this research was suc-cessful in designing a prototype of a heritage tourism mobile application to ex-plore temple tourism. This application design is suitable for users based on four variables: Usefulness, Ease of Use, Ease of Learning, and Satisfaction.