Perceptions of a mobile phone-based approach to promote medication adherence: A cross-sectional application of the technology acceptance model

•Medication adherence strategies using mobile phones are common•New mobile phone-based approach called caller tunes was tested for feasibility•Intention to use the caller tunes for enhancing medication adherence was high•Making caller tunes free to download increased intention to use•Caller tunes could be a novel strategy to promote medication adherence