Choosing between Instantly and Mailchimp for your agency? Both are popular choices. Instantly starts at $37+/mo and is best known as Cold email at scale with deliverability tools. 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.
In
Instantly
Cold email at scale with deliverability tools.
$37+/mo
👍 Pros
- Unlimited email accounts
- Built-in warmup
- Great deliverability
👎 Cons
- Learning curve for setup
- Extra cost for lead data
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