Depending on the definition of the model and how the cost function is designed one estimator can be used for both classification and regression. Some estimators such as k-NN or SVM can be used for both regression and classification. Logistic Regression and Softmax Regressions are just (normally) useful for classification. Therefore, you need to search to see if there is a version of the estimator with the same name that can be used for different purposes.
