It seems that the Apple Store is offering an enticing app called TSP Funds, that is supposed to help you manage your Thrift Savings Plan (TSP) account. Please be aware that this app is NOT designed or authorized by TSP. The app asks for you to input your account access information. TSP cannot guarantee the security of your account access information if you use this app.
Think twice before downloading or using this app. No sense taking the chance with your retirement money!