Nowadays, speech and language pathologists are increasingly using information and communication tehnology in their work. A number of applications have been developed within the ICT-AAC project, including the ICT-AAC e-Gallery application, which is intended for different users and offers numerous opportunities. One of them is to promote language skills of children. Therefore, the aim of this study is to test efficiency of ICT-AAC application e- Gallery in promoting language skills. The research included children of typical language development of preschool age. The effectiveness of ICT-AAC app on narrative skills, or the impact of application on production and comprehension of stories has been tested. The Croatian version of the Multilingual Assesment Instrument for Narratives- MAIN was used as the test material. The test was conducted individually and the audio record of each paricipant was stored. The results showed that, when they used the ICT-AAC e-Gallery app, children achieved higher scores on the story structure variable, higher scores on the story structural complexity variable, and a greater total number of words expressing internal states. Also, children achieved higher scores in understanding the part of the story that was presented to them with visual support and soundtrack than the part of the story that was presented with the soundtrack only. As a result of higher scores of production and comprehension with the use of e- Gallery, the ICT-AAC e-Gallery app can be considered effective in promoting language skills. Thanks to the data obtained, we can claim that the ICT-AAC e-Gallery application can be a useful tool in speech therapy.