Neither Warmer.ai nor Sigmail offers a free trial.
Warmer.ai is designed for Individuals, Medium Business and Small Business.
Sigmail is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Sigmail begins at $29/Month, while pricing details for Warmer.ai are unavailable.
Some top alternatives to Warmer.ai includes SmartWriter, Instantly, Qualified, SmartReach.io, Workvivo, SellScale, Sigmail and IFTTT.
Some top alternatives to Sigmail includes SmartWriter, Seamless.AI, SalesIntelligent, Saleswhale, SalesRobot, Qualified, Magic Sales Bot, Workvivo, SellScale, Lyne.ai and IFTTT.