#1
Stripe

Stripe

★★★★★ 4.7 $2.9+

Payment processing infrastructure for internet businesses with APIs for subscriptions, invoicing, and global payments.

paymentssubscriptionsinvoicingconnect-marketplace
✓ Best-in-class developer documentation✓ Supports 135+ currencies and payment methods✓ Powerful subscription and billing management
#2
Freshdesk

Freshdesk

★★★★ 4.4 Free / $15+ Free plan

Customer support software with ticketing, self-service portal, and AI-powered automation by Freshworks.

ticketingknowledge-baseai-automationsla-management
✓ Free tier with up to 2 agents✓ Intuitive and easy to set up✓ Freddy AI for ticket classification
#3
Crisp

Crisp

★★★★ 4.4 Free / $25+ Free plan

All-in-one customer messaging platform with live chat, chatbot, knowledge base, and shared inbox for small businesses.

live-chatchatbotshared-inboxknowledge-base
✓ Very generous free tier (2 seats included)✓ Per-workspace pricing instead of per-seat✓ Built-in chatbot builder with no-code
#4
Mailchimp

Mailchimp

★★★★ 4.3 Free / $13+ Free plan

Email marketing and automation platform with landing pages, audience management, and campaign analytics.

email-campaignsautomationlanding-pagesaudience-segments
✓ Free tier for up to 500 contacts✓ Easy drag-and-drop email builder✓ Built-in automation workflows
#5
Zendesk

Zendesk

★★★★ 4.3 $55+

Customer service platform with ticketing, live chat, knowledge base, and AI-powered support automation.

ticketinglive-chatknowledge-baseai-bots
✓ Industry standard for support teams✓ Omnichannel — email, chat, phone, social✓ Powerful automation and triggers
#6
QuickBooks Online

QuickBooks Online

★★★★ 4.3 $30+

Small business accounting software for invoicing, expense tracking, tax preparation, and financial reporting.

invoicingexpense-trackingbank-syncreports
✓ Most popular small business accounting tool✓ Excellent integration ecosystem✓ Automatic bank feed reconciliation

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