Simulate and Analyze Interval- and Mixed-Censored Survival Data R package simIC version 0.1.0 Provides tools to simulate and analyze survival data with interval-, left-, right-, and uncensored observations under common parametric distributions, including "Weibull", "Exponential", "Log-Normal", "Log-Logistic", "Gamma", "Gompertz", "Normal", "Logistic", and "EMV". The package supports both direct maximum likelihood estimation and imputation-based methods, making it suitable for methodological research, simulation benchmarking, and teaching. A web-based companion app is also available for demonstration purposes. Software Jayanthi Arasan <jayanthi@upm.edu.my> Comprehensive R Archive Network (CRAN) Jayanthi Arasan [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=simIC/LICENSE) 2025-07-31 application/tgz https://CRAN.R-project.org/package=simIC doi:10.32614/CRAN.package.simIC