Free / Open-sourceAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
Free / Open-sourceAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
ActiveCampaign AI records 526,760 monthly visits with +0.5% month-over-month growth and Free Trial, Paid pricing. Quest (Questera) records 0 monthly visits with 0% growth and Contact for Pricing pricing.
Agentic customer engagement platform where AI teammates watch signals and act across channels
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | activecampaign.com | questlabs.ai |
| Pricing Model | Free Trial, Paid | Contact for Pricing |
| Monthly Visits | 526.76K (526,760) | 0 (0) |
| MoM Traffic Delta | +2.77K (+0.5%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (46.3%) | 🌐 Global (—) |
| Direct Visits / mo | 307.63K | 0 |
| User Rating | 4.3 | 4.5 |
| Supported Platforms | Website | Website |

Autonomous marketing automation powered by AI agents
Brief an agent in plain language and it drafts campaigns, builds automations and runs recurring account audits for your approval.
Run email, SMS, WhatsApp and transactional messaging from one automation canvas with a shared contact record.
Every send is A/B tested automatically, and AI builds engagement-based segments so each group gets relevant content.
A sales pipeline CRM lives alongside marketing automations so leads and deals share the same customer context.
Agentic customer engagement platform where AI teammates watch signals and act across channels
Deploy named agents for lifecycle email (ELMA), retargeting ads (SARA), omnichannel journeys (OMNIA), segmentation (SEGA), growth engineering (GRETA) and analytics (GIA) without writing campaign logic yourself.
Create your own agent in four steps: choose an avatar, add goals and guardrail instructions, pick abilities from 75+ integrations, then test and deploy with real-time feedback.
Agents watch behavioural and product signals continuously and adapt journeys as user behaviour changes, rather than waiting for a nightly batch.
Connects to CRM, CDP, ads, email and analytics tools including Segment, Snowflake, Braze and HubSpot, activating existing data instead of replacing your warehouse.
Free / Open-sourceAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
Free / Open-sourceAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.
Offers simpler, beginner-friendly email templates and design tools, but provides less sophisticated multi-channel automation workflows.
Offers simpler, beginner-friendly email templates and design tools, but provides less sophisticated multi-channel automation workflows.

Free / Open-sourceThe AI-powered B2C CRM for email, SMS, and personalized marketing at scale
Free / Open-sourceThe AI-powered B2C CRM for email, SMS, and personalized marketing at scale
Free / Open-sourceAll-in-one customer platform for email, SMS, CRM, and automation
Free / Open-sourceAll-in-one customer platform for email, SMS, CRM, and automation

Features a cleaner, highly intuitive drag-and-drop editor for newsletters, but lacks deep enterprise CRM features.
Features a cleaner, highly intuitive drag-and-drop editor for newsletters, but lacks deep enterprise CRM features.

Conversational AI and helpdesk built for ecommerce brands

SpecialistFocuses heavily on cold email outreach and warmup deliverability at scale, rather than inbound marketing automation.

Includes robust built-in landing pages and webinars alongside email automation, but has less flexible CRM pipelines.
Includes robust built-in landing pages and webinars alongside email automation, but has less flexible CRM pipelines.
Free / Open-sourceKnow what's actually working in your ecommerce business — and act on it instantly.
Free / Open-sourceKnow what's actually working in your ecommerce business — and act on it instantly.
AI agents that work the revenue lifecycle alongside your sellers

SpecialistOptimized for high-volume cold email campaigns and multi-mailbox rotation, but less suited for complex customer journeys.
SpecialistOptimized for high-volume cold email campaigns and multi-mailbox rotation, but less suited for complex customer journeys.

Features unique open-rate lift technology and AI send-time optimization, but has a more dated user interface.
Features unique open-rate lift technology and AI send-time optimization, but has a more dated user interface.