How do their growth rates compare?

InboxPro has a month-over-month growth rate of +8%; Superhuman has +7.9%.

How does pricing compare?

InboxPro: Freemium. Free forever plan (1 user, 250 emails/month). Paid tiers billed yearly: Basic about $10/mo, Professional about $25/mo (3 users), Growth about $50/mo (5 users), plus custom enterprise pricing on request. Annual billing saves up to 25%. Superhuman: Paid. Paid product with plans for individuals, teams, and enterprises; see the official pricing page for current seat prices and included features.

What are alternatives to InboxPro and Superhuman?

Other tools in related categories include Instantly, Smartlead, Robly Email Marketing, Missive, Success.ai.

InboxPro vs Superhuman — Traffic (9.07K vs 6.51M), Pricing & Verdict

Open AI Tools

InboxPro vs Superhuman — Traffic (9.07K vs 6.51M), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	InboxPro	Superhuman
Official Domain	inboxpro.io	superhuman.com
Pricing Model	Freemium	Paid
Monthly Visits	9.07K (9,067)	6.51M (6,514,241)
MoM Traffic Delta	+671 (+8%)	+477.48K (+7.9%)
Primary Market & Share	🇺🇸 United States (49.9%)	🇺🇸 United States (56.8%)
Direct Visits / mo	3.64K	4.96M
User Rating	4.2	4.5
Supported Platforms	Website	Website

InboxPro

AI email assistant and sales sequence engine for Gmail and Outlook

AI email assistant

Compose or summarise messages from a subject line, keywords, and a chosen tone of voice; daily AI email allowances scale from limited on Free to 200 per day on Growth.

Follow-up sequences

Build multi-step email sequences with triggers and conditions, start or stop them at will, and cap them at one sequence on Free or unlimited on paid plans.

Built-in booking calendar

Publish a public scheduling page connected to Google, Office 365, Outlook, and iCloud calendars, with notification handling and no double-booking.

Tracking and analytics

Get real-time open and link-click notifications plus weekly and monthly reports covering email volume, top-performing messages, and busy hours.

Strengths & Pros

+Works inside Gmail and Microsoft accounts, so there is no inbox migration
+Free plan is genuinely usable, with paid tiers starting around $10/month
+Combines AI writing, sequences, scheduling, tracking, and signatures in one subscription
+Templates, merge tags, analytics, and calendar pages are all included rather than sold as add-ons