As one of its daily deals, Amazon offers Norton 360 Multi-Device for Windows, Mac, and mobile devices, model no. 21262776, for $28.99 with free shipping. That's the lowest total price we could find by $31. Sales tax is added where applicable. This security software is compatible with PCs, Macs, iPhones, iPads, Android tablets, and Android smartphones and protects up to five devices at once. Deal ends today.