Amateur cricket bowlers need to be flexible on their shoulders to maximise their performance and reduce their chance of injury. Based on literature, amateur cricket bowlers are found to have a restricted shoulder range of motion. Considering this scenario, manual therapy approaches like Active Release Technique (ART), which focus on soft tissue adhesions to decrease muscular tension, improve range of motion (ROM), inclusive health and psychological well-being. Therefore, the present pilot study aimed to evaluate the effectiveness of the Active Release Technique on shoulder flexibility in amateur cricket bowlers, using APECS software for precise measurement and analysis of shoulder flexibility. APECS is an innovative and accurate motion capture technology with a recent trend in measuring ROM. This study involved 16 amateur cricket bowlers based on inclusion and exclusion criteria. Participants were divided into two groups (experimental and control). The control group received no intervention. The experimental group received ART focused on shoulder muscles. The study duration was 4 weeks. Participants pre- and post-evaluation of shoulder flexibility was measured with APECS software, which gives precise measurements of shoulder ROM (flexion, extension, abduction, and circumduction). Pre- and post-intervention, shoulder flexibility was reassessed using APECS software to determine changes in ROM. ART showed a substantial difference (p < 0.001) in improving shoulder ROM using innovative APECS software when compared to the control group. The findings of the pilot study provide insight into how ART induced an improvement in improving the shoulder range of motion among amateur cricket bowlers using APECS software.