 This review aims to summarize the effectiveness of mobile health, mHealth, interventions on improving maternal and infant health outcomes in low and middle income countries. The study found that mHealth interventions were effective in increasing antenatal care visits, skilled birth attendance at delivery, and facility delivery among pregnant women in LaMix. However, the evidence was mixed for one-way mHealth interventions and unclear for skilled birth attendance during delivery when compared with standard care. The study suggests that more research is needed to improve the reproducibility and efficiency of mHealth interventions or strengthen their effectiveness in different settings. This article was authored by M. D. O. Bader-Raman, Noyori Yamaji, Yasuko Nagamatsu, and others.