Many patients with primary brain tumors experience cognitive deficits and cognitive rehabilitation programs aim to alleviate these deficits.The cognitive rehabilitation program developed by the investigators proved effective in a large randomized controlled trial (RCT). To increase its accessibility, it was converted into the iPad-based cognitive rehabilitation program ReMind, which incorporates psychoeducation, strategy training and retraining. A pilot study and a randomized controlled trial are conducted, to evaluate the feasibility of the use of the program and the efficacy of the program in brain tumor patients after resective surgery.