Base stamp fees can be lower at banks or shipping stores, but total cost often favors mobile service once time and travel are counted. Example: a two-signer package with weekday travel and an hour away from work can add $75–$180 in lost time/transportation. A mobile notary that comes to your home, office, or escrow table reduces time away, avoids multiple trips for witnesses, and supports evening/weekend schedules to prevent redraws or rate-lock risk. For transactions with tight deadlines or multi-party coordination, mobile is typically the lower total cost—even if the per-stamp fee looks higher on paper.