How do Mailchimp and String Catalog compare in monthly traffic?

Mailchimp has 10,071,636 monthly visits, while String Catalog has 468. Traffic estimates describe audience size, not product quality.

How do their growth rates compare?

Mailchimp has a month-over-month growth rate of +1.1%; String Catalog has -66.7%.

How does pricing compare?

Mailchimp: Freemium. Freemium with a free tier for smaller lists, plus paid Essentials, Standard, and Premium plans billed by contact count. A free trial of paid plans is offered, with annual billing discounts. String Catalog: Paid. Paid subscription with a monthly or annual option (annual saves about 20%) and one free language to trial. Published plans are Hobby at $15/month, Pro at $45/month, and Business at $75/month, differing mainly by base string-key limits and review features. All plans include up to 40 languages and no per-language charge. Check the site's cost calculator for current figures.