Sign your eInvest applications using eInvest Signature. When you apply for an IPO, APO or any other transaction using eInvest, you can use the eInvest Signature app to sign this immediately and send your transaction to be processed. This digital signature software can also be called an electronic signature software and e-signature software. Simply create your signature and add this to the eInvest Signature app and it will lock this in for when you are ready to do your transaction. This is the excellent signature creator app that allows you to complete your eInvest application simply and quickly! No hassle!