Introduction: The main objective of this study was to validate six educational applications developed to train the cognitive precursors associated with mathematics learning in early childhood education students. Method: The mathematical performance of 193 preschool students aged 57 to 79 months (M=63.3, SD=3.7) from various schools was assessed using the TEMA-3. They were divided into three groups: two experimental groups and one control group. Students in the experimental groups completed a training program in cognitive processes related to mathematical learning using apps. A pre- and post-intervention comparative analysis was conducted. Results: The app-based training program showed significant gains in students who had low scores on pre-assessment tests. As expected, students at higher levels also improved with the training program. However, those students who initially had a disadvantage in mathematical learning achieved significant improvement in scores, especially on measures of formal mathematical thinking. Discussion and Conclusion: The advantages derived from the use of these applications are discussed, both in the school environment and at home.