Multi-Study Multi-Modality Generalized Factor Model R package MMGFM version 1.2.1 We introduce a generalized factor model designed to jointly analyze high-dimensional multi-modality data from multiple studies by extracting study-shared and specified factors. Our factor models account for heterogeneous noises and overdispersion among modality variables with augmented covariates. We propose an efficient and speedy variational estimation procedure for estimating model parameters, along with a novel criterion for selecting the optimal number of factors. More details can be referred to Liu et al. (2025) <doi:10.48550/arXiv.2507.09889>. Software Depends: irlba, R (>= 3.5.0) Imports: MASS, stats, GFM, MultiCOAP, Rcpp (>= 1.0.10) LinkingTo: Rcpp, RcppArmadillo Suggests: knitr, rmarkdown Wei Liu <liuweideng@gmail.com> Comprehensive R Archive Network (CRAN) Wei Liu [aut, cre], Qingzhi Zhong [aut] GPL-3 2025-11-12 application/tgz https://CRAN.R-project.org/package=MMGFM doi:10.32614/CRAN.package.MMGFM