Estimated monthly cost comparison — not just the headline price
Prices change often — confirm on the vendor's site before buying. Report incorrect pricing →
Quick Take
SendGrid has the lower estimated monthly cost (~7%)
Based on advertised price plus documented recurring fees, not your exact usage.
Best for Mailchimp
Email marketing platform with automation. Free for 500 contacts, then contact-based pricing creates
Best for SendGrid
Twilio's email delivery platform for transactional and marketing emails. Free for 100 emails/day, th
Email marketing platform with automation. Free for 500 contacts, then contact-ba...
Advertised
$0
/month
Estimated monthly cost
$113
/month (illustrative)
Unsubscribed Contacts Count
Mailchimp counts unsubscribed and non-subscribed contacts toward your billing limit. A list of 10K w...
Steep Contact Tier Scaling
Pricing jumps dramatically: 500 contacts = $13.99/mo, 2,500 = $45/mo, 10K = $100/mo, 50K = $350/mo. ...
Pay-As-You-Go Email Credits
Over-limit sends cost extra as email credits. Standard plan allows 12x your contact limit per month....
Advanced Automation Paywall
Free and Essentials include only basic automations. Customer journeys with branching, A/B testing, a...
Twilio's email delivery platform for transactional and marketing emails. Free fo...
Advertised
$0
/month
Estimated monthly cost
$105
/month (illustrative)
Dedicated IP Required for Deliverability
Shared IP on lower plans hurts deliverability. Dedicated IP costs $20-$40/mo extra and requires Pro ...
Email Validation Add-On
Email address validation to reduce bounces costs $0.003-$0.01 per validation. Validating a 50K list ...
Overage Email Charges
Exceeding monthly email limit incurs overage at $0.00085-$0.001 per email. 100K extra emails = $85-$...
Mailchimp advertises $0/mo. SendGrid advertises $0/mo.
Mailchimp has 4 documented hidden fees. SendGrid has 3.
Mailchimp confidence: 80%. SendGrid confidence: 75%.
| Metric | Mailchimp | SendGrid | Winner |
|---|---|---|---|
| Advertised Price | $0/mo | $0/mo | — |
| Estimated Monthly Cost | $113/mo | $105/mo | SendGrid |
| Recurring Extra Fees | +$113/mo | +$105/mo | SendGrid |
| One-Time Costs | $0 | $0 | — |
| # Documented Fees | 4 | 3 | — |
| Pricing Tiers | 4 | 3 | — |
| Affiliate Program | No public affiliate program (discontinued 2022) | None | — |
Mailchimp advertises $0/mo and SendGrid advertises $0/mo. Mailchimp has 4 documented extra fees (recurring: +$113/mo), while SendGrid has 3 (recurring: +$105/mo). On these illustrative assumptions, SendGrid has the lower estimated monthly cost (about 7% less). Your real cost depends on seats and usage — use the calculator for your numbers.
Mailchimp has 4 documented extra fees: Unsubscribed Contacts Count, Steep Contact Tier Scaling, Pay-As-You-Go Email Credits, Advanced Automation Paywall. Recurring fees add roughly $113/mo on top of the $0/mo advertised price.
SendGrid has 3 documented extra fees: Dedicated IP Required for Deliverability, Email Validation Add-On, Overage Email Charges. Recurring fees add roughly $105/mo on top of the $0/mo advertised price.
Choose Mailchimp if: Email marketing platform with automation. Free for 500 contacts, then contact-based pricing creates . Choose SendGrid if: Twilio's email delivery platform for transactional and marketing emails. Free for 100 emails/day, th. The right choice depends on your team size, usage volume, and which features you need most.
This comparison is compiled from public vendor pricing pages and documentation. It uses illustrative assumptions (see "Cost Comparison Summary"), not your exact seats or usage, and vendor prices change often. Confirm current prices on each vendor's site, and use our calculator with your own usage for a closer estimate. Spotted an error? Email hello@trulycritic.com.
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