Slack offers Free Trial, but Zoho Invoice does not.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zoho Invoice is designed for Freelancers, Medium Business and Small Business.
The starting price of Slack begins at $2.67/Month, while pricing details for Zoho Invoice are unavailable.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.
Some top alternatives to Zoho Invoice includes Freshbooks, Invoiced, InvoiceBerry, Simple Invoices, Billbooks, Billin, InvoiceApp, CloudBooks and WavePayroll.