A Will clarifies where you would like assets to go upon death, who you would like appointed as the guardian/conservator for any minor children and a few other basic estate planning needs. The Will itself does not help convey title to assets from the estate to the beneficiaries and without a trust could result in a probate case. A Trust is a legal entity that can hold title to assets and is used as the actual beneficiary of assets upon death in order to avoid probate court and possibly hold/manage assets after death for the support of a beneficiary. They are very different tools used within estate planning.