How do their growth rates compare?

Respond.io has a month-over-month growth rate of -8.7%; Tunk.ai has -100%.

How does pricing compare?

Respond.io: Freemium. Freemium with a free trial. Paid tiers scale by users and monthly active contacts, and WhatsApp messaging fees are billed separately by the channel provider. Tunk.ai: Free Trial, Contact for Pricing. Enterprise-oriented with a free trial / demo path. No public self-serve price list is shown: prospective customers are asked to book a demo or contact the team, and pricing is reported as per-minute or customized enterprise volume tiers for voice agents, real-time telephony streaming and speech-to-text APIs.

What are alternatives to Respond.io and Tunk.ai?

Other tools in related categories include Intercom, Gorgias, Cartesia, Crisp, Deepgram Voice AI.

Respond.io vs Tunk.ai — Traffic (1.61M vs 0), Pricing & Verdict

Open AI Tools

Respond.io vs Tunk.ai — Traffic (1.61M vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Respond.io	Tunk.ai
Official Domain	respond.io	tunk.ai
Pricing Model	Freemium	Free Trial, Contact for Pricing
Monthly Visits	1.61M (1,606,802)	0 (0)
MoM Traffic Delta	-152.34K (-8.7%)	-3.37K (-100%)
Primary Market & Share	🇲🇾 Malaysia (17.4%)	🌐 Global (—)
Direct Visits / mo	1.24M	0
User Rating	4.5	4.2
Supported Platforms	Website	Website

Respond.io

AI-powered customer conversation platform for B2C messaging at scale

Unified team inbox

Bring WhatsApp, TikTok, Instagram, Facebook, Telegram, email and web chat into one shared inbox so no customer thread gets lost between apps.

AI agents and automation

AI agents qualify leads, answer routine questions, route to the right teammate and follow up automatically when conversations go quiet.

Contact lifecycle CRM

Track tags, custom fields, lead status and lifecycle stage per contact, and move deals through a pipeline without a separate CRM.

Broadcast campaigns and click-to-chat

Reach thousands of customers with one message, and capture new leads directly from social ads and website links.

Strengths & Pros

+Genuinely broad channel coverage, including WhatsApp Business API and social apps B2C customers actually use
+AI agents handle routine qualification and follow-up work alongside, not instead of, human teammates
+Built-in contact CRM and pipelines reduce the need for a separate tool
+Multi-channel analytics make it easier to prove where revenue comes from