Perceived novelty in mobile applications is an inevitable aspect of today's technologies. Studies suggest that this perceived novelty effect increases motivation but wanes once the user becomes accustomed to the product. Using a Self-Determination Theory approach, the present study investigates how different tools relate to students' motivation, basic psychological needs, and achievement, over and above the effect of perceived novelty. The results from a randomized controlled experiment show that a mobile-learning tool and a digital version of a textbook are perceived as more novel than a traditional textbook. However, only the mobile-learning tool enhances the students' basic psychological needs. Additionally, using path-analysis, we find that the mobile-learning tool, need-satisfaction within the mobile-learning tool, and autonomous motivation account for achievement and internalization, over and above the effect of novelty. We argue that this finding is due to the inherent need-supportive elements within the mobile-learning tool that satisfy the basic psychological needs. •Study investigating the novelty effect of different learning tools.•Mobile learning tool and digital textbook perceived as more novel relative to traditional textbook.•Mobile learning tool enhances achievement and need satisfaction relative to digital textbook and traditional textbook.•Path-analysis show that mobile learning tool uniquely enhances need satisfaction, autonomous motivation and internalization.•Results are in line with Self-Determination Theory.