Choosing between Apollo.io and Mailchimp for your agency? Both are popular choices. Apollo.io starts at Free / $49+/mo and is best known as B2B lead database plus outbound engagement. Mailchimp starts at Free / $13+/mo and is Email marketing and automation for client newsletters. Below is a side-by-side breakdown of features, pricing, pros, and cons to help you decide which fits your agency's workflow and budget in 2026.
Ap
Apollo.io
B2B lead database plus outbound engagement.
Free / $49+/mo
👍 Pros
- Huge contact database
- Find + engage in one place
- Good free tier
👎 Cons
- Data accuracy varies
- Sending limits on lower tiers
Ma
Mailchimp
Email marketing and automation for client newsletters.
Free / $13+/mo
👍 Pros
- Easy to use
- Good automations
- Strong templates
👎 Cons
- Gets pricey with list size
- Not built for cold outreach