--- title: "Best Customer.io Alternatives 2026 | Capterra" description: "Looking for alternatives to Customer.io? Find out how Customer.io stacks up against its competitors with real user reviews, pricing information, and what features they offer." source_url: "https://www.capterra.com/p/174023/Customer-io/alternatives/" page_type: "alternatives" language: "en" publication_date: "2026-09-29" --- # Customer.io alternatives Last updated on September 29th, 2026 The best Customer.io alternatives are Gmail (best overall), Systeme.io (best free plan), Brevo (best budget option), and Constant Contact (most reviewed). Together they hold 22,185 verified Capterra reviews, with overall ratings from 4.3 to 4.8 out of 5. Customer.io itself holds 4.6 out of 5 across 88 reviews. ### Customer.io - Rating: 4.6 out of 5 (88 reviews) - Ease of use: 4.3 out of 5 - Starting price: $100.00 /usage/mo - Key features: 7 of 11 top category features --- ## Top alternatives Customer.io alternatives compared | Product | Rating difference | Ease of use | Starting price | Key features | | --- | --- | --- | --- | --- | | [Brevo](https://www.capterra.com/p/132996/brevo/) — 4.6 out of 5 (3,525 reviews) | Rated the same as this product | 4.6 out of 5 | $9.00 /usage/mo | 9 of 11 top category features | | [Gmail](https://www.capterra.com/p/202338/Gmail/) — 4.8 out of 5 (13,573 reviews) | Rated 0.2 higher than this product | 4.8 out of 5 | Not available | 0 of 11 top category features | | [MailerLite](https://www.capterra.com/p/136603/MailerLite/) — 4.7 out of 5 (2,325 reviews) | Rated 0.1 higher than this product | 4.6 out of 5 | $12.00 /mo | 9 of 11 top category features | | [ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/) — 4.6 out of 5 (2,572 reviews) | Rated the same as this product | 4.2 out of 5 | $15.00 /mo | 11 of 11 top category features | | [Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/) — 4.3 out of 5 (2,956 reviews) | Rated 0.3 lower than this product | 4.3 out of 5 | $12.00 /usage/mo | 11 of 11 top category features | | [EmailOctopus](https://www.capterra.com/p/147415/EmailOctopus/) — 4.8 out of 5 (657 reviews) | Rated 0.2 higher than this product | 4.7 out of 5 | $9.00 /feature/mo | 4 of 11 top category features | | [Systeme.io](https://www.capterra.com/p/198994/Systeme/) — 4.8 out of 5 (2,131 reviews) | Rated 0.2 higher than this product | 4.6 out of 5 | $17.00 /mo | 10 of 11 top category features | | [Omnisend](https://www.capterra.com/p/153508/Omnisend/) — 4.7 out of 5 (837 reviews) | Rated 0.1 higher than this product | 4.6 out of 5 | $16.00 /usage/mo | 9 of 11 top category features | | [Success.ai](https://www.capterra.com/p/10013316/Success-ai/) — 4.8 out of 5 (418 reviews) | Rated 0.2 higher than this product | 4.8 out of 5 | $33.00 /mo | 2 of 11 top category features | | [Bloomreach](https://www.capterra.com/p/173203/Bloomreach/) — 4.8 out of 5 (56 reviews) | Rated 0.2 higher than this product | 4.5 out of 5 | Not available | 11 of 11 top category features | --- ## Top Free alternatives to Customer.io The best free alternatives to Customer.io are Brevo, Gmail, and MailerLite — all three offer a free plan alongside paid tiers. ### [Brevo](https://www.capterra.com/p/132996/brevo/) — 4.6 out of 5 (3,525 reviews) - Free options: Free version - Starting price: $9.00 /usage/mo ### [Gmail](https://www.capterra.com/p/202338/Gmail/) — 4.8 out of 5 (13,573 reviews) - Free options: Free trial, Free version - Starting price: Not available ### [MailerLite](https://www.capterra.com/p/136603/MailerLite/) — 4.7 out of 5 (2,325 reviews) - Free options: Free trial, Free version - Starting price: $12.00 /mo --- ## Top alternatives for SMBs Among reviewers from companies with 1-200 employees, the highest-rated Customer.io alternatives are Success.ai (4.8), Bloomreach (4.8), and MailerLite (4.7). ### [Success.ai](https://www.capterra.com/p/10013316/Success-ai/) - 300 SMB reviewers say - Overall rating: 4.8 out of 5 across 300 SMB reviews - Ease of use: 4.8 out of 5 across 300 SMB reviews > "Onboarding guidance could be improved." — DECMAMILA E., Web Developer (January 19, 2026) ### [Bloomreach](https://www.capterra.com/p/173203/Bloomreach/) - 23 SMB reviewers say - Overall rating: 4.8 out of 5 across 23 SMB reviews - Ease of use: 4.5 out of 5 across 22 SMB reviews > "That is a one-in-all solution for all Marketing Automation needs. If we had to select another setup this would mean purchasing different solutions to coer all the use cases of Bloomreach." — Luis R., Freelance Consultant (June 5, 2024) ### [MailerLite](https://www.capterra.com/p/136603/MailerLite/) - 970 SMB reviewers say - Overall rating: 4.7 out of 5 across 970 SMB reviews - Ease of use: 4.6 out of 5 across 969 SMB reviews > "I wish they would use industry conversion rates out of 1000 subs for the free plan." — Chris L., Operations (February 23, 2026) --- ## Find software for your specific use case ### Marketing Automation - [Jira](https://www.capterra.com/p/19319/JIRA/) — 4.4 out of 5 (15,504 reviews) - [Zoho CRM](https://www.capterra.com/p/155928/Zoho-CRM/) — 4.3 out of 5 (7,007 reviews) - [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) — 4.5 out of 5 (6,261 reviews) ### Email Marketing - [Gmail](https://www.capterra.com/p/202338/Gmail/) — 4.8 out of 5 (13,573 reviews) - [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) — 4.5 out of 5 (6,261 reviews) - [Brevo](https://www.capterra.com/p/132996/brevo/) — 4.6 out of 5 (3,525 reviews) ### Customer Engagement - [Quizell](https://www.capterra.com/p/231981/Quizell/) — 5.0 out of 5 (20 reviews) - [USAN Contact Suite for Amazon Connect](https://www.capterra.com/p/235279/USAN-Contact-Suite-for-Amazon-Connect/) — 5.0 out of 5 (3 reviews) - [Adobe Customer Journey Analytics](https://www.capterra.com/p/250207/Adobe-Customer-Journey-Analytics/) — 4.6 out of 5 (5 reviews) ### Campaign Management - [Adobe Journey Optimizer](https://www.capterra.com/p/250206/Adobe-Journey-Optimizer/) — 5.0 out of 5 (1 reviews) - [Zoho Marketing Plus](https://www.capterra.com/p/253009/Zoho-Marketing-Plus/) — 4.6 out of 5 (9 reviews) - [Trello](https://www.capterra.com/p/211559/Trello/) — 4.5 out of 5 (23,640 reviews) ### Push Notifications - [AlertMedia](https://www.capterra.com/p/176123/AlertMedia-Mass-Notification/) — 4.8 out of 5 (151 reviews) - [Adobe Journey Optimizer](https://www.capterra.com/p/250206/Adobe-Journey-Optimizer/) — 5.0 out of 5 (1 reviews) - [Brevo](https://www.capterra.com/p/132996/brevo/) — 4.6 out of 5 (3,525 reviews) ---