--- title: "Best Email on Acid Alternatives 2026 | Capterra" description: "Looking for alternatives to Email on Acid? Find out how Email on Acid stacks up against its competitors with real user reviews, pricing information, and what features they offer." source_url: "https://www.capterra.com/p/174836/Email-on-Acid/alternatives/" page_type: "alternatives" language: "en" --- # Email on Acid alternatives Last updated on August 26th, 2026 The best Email on Acid alternatives are Gmail (best overall), EmailOctopus (best free plan), Brevo (best budget option), and Mailchimp (most reviewed). Together they hold 35,382 verified Capterra reviews, with overall ratings from 4.5 to 4.8 out of 5. Email on Acid itself holds 4.4 out of 5 across 30 reviews. ### Email on Acid - Rating: 4.4 out of 5 (30 reviews) - Ease of use: 4.5 out of 5 - Starting price: $99.00 /mo - Key features: 3 of 11 top category features --- ## Top alternatives Email on Acid alternatives compared | Product | Rating difference | Ease of use | Starting price | Key features | | --- | --- | --- | --- | --- | | [GMass](https://www.capterra.com/p/168452/GMass/) — 4.8 out of 5 (1,421 reviews) | Rated 0.4 higher than this product | 4.7 out of 5 | $25.00 /mo | 6 of 11 top category features | | [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) — 4.6 out of 5 (537 reviews) | Rated 0.2 higher than this product | 4.5 out of 5 | $20.00 /usage/mo | 11 of 11 top category features | | [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) — 4.5 out of 5 (6,252 reviews) | Rated 0.1 higher than this product | 4.3 out of 5 | $15.00 /user/mo | 11 of 11 top category features | | [EngageBay CRM](https://www.capterra.com/p/178819/EngageBay-Marketing/) — 4.6 out of 5 (910 reviews) | Rated 0.2 higher than this product | 4.5 out of 5 | $14.99 /user/mo | 9 of 11 top category features | | [Omnisend](https://www.capterra.com/p/153508/Omnisend/) — 4.7 out of 5 (836 reviews) | Rated 0.3 higher than this product | 4.6 out of 5 | $16.00 /usage/mo | 11 of 11 top category features | | [Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/) — 4.3 out of 5 (2,945 reviews) | Rated 0.1 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 (655 reviews) | Rated 0.4 higher than this product | 4.7 out of 5 | $9.00 /feature/mo | 10 of 11 top category features | | [Brevo](https://www.capterra.com/p/132996/brevo/) — 4.6 out of 5 (3,514 reviews) | Rated 0.2 higher than this product | 4.6 out of 5 | $9.00 /usage/mo | 11 of 11 top category features | | [Gmail](https://www.capterra.com/p/202338/Gmail/) — 4.8 out of 5 (13,532 reviews) | Rated 0.4 higher than this product | 4.8 out of 5 | Not available | 7 of 11 top category features | | [Mailchimp](https://www.capterra.com/p/110228/MailChimp/) — 4.5 out of 5 (17,681 reviews) | Rated 0.1 higher than this product | 4.4 out of 5 | $13.00 /mo | 11 of 11 top category features | --- ## Top Free alternatives to Email on Acid The best free alternatives to Email on Acid are GMass, Klaviyo, and HubSpot Marketing Hub — all three offer a free plan alongside paid tiers. ### [GMass](https://www.capterra.com/p/168452/GMass/) — 4.8 out of 5 (1,421 reviews) - Free options: Free trial - Starting price: $25.00 /mo ### [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) — 4.6 out of 5 (537 reviews) - Free options: Free trial, Free version - Starting price: $20.00 /usage/mo ### [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) — 4.5 out of 5 (6,252 reviews) - Free options: Free trial, Free version - Starting price: $15.00 /user/mo --- ## Top alternatives for SMBs Among reviewers from companies with 1-200 employees, the highest-rated Email on Acid alternatives are GMass (4.8), Omnisend (4.7), and EmailOctopus (4.7). ### [GMass](https://www.capterra.com/p/168452/GMass/) - 904 SMB reviewers say - Overall rating: 4.8 out of 5 across 904 SMB reviews - Ease of use: 4.7 out of 5 across 904 SMB reviews > "I also love that I can turn those emails into automated behavioral follow-ups, which helps me stay consistent with social media leads and move them closer to becoming real clients." — Tiffany B., Real Estate Advisor (July 7, 2026) ### [Omnisend](https://www.capterra.com/p/153508/Omnisend/) - 537 SMB reviewers say - Overall rating: 4.7 out of 5 across 537 SMB reviews - Ease of use: 4.6 out of 5 across 537 SMB reviews > "Omnisend delivers a lot of capability for the price, especially since billing is based on active subscribers only." — Frank A., Head of Digital (March 29, 2026) ### [EmailOctopus](https://www.capterra.com/p/147415/EmailOctopus/) - 328 SMB reviewers say - Overall rating: 4.7 out of 5 across 328 SMB reviews - Ease of use: 4.7 out of 5 across 328 SMB reviews > "Easy initial setup" — Juan d., CMO (February 18, 2026) --- ## Find software for your specific use case ### Email Marketing - [Mailjet](https://www.capterra.com/p/130105/Mailjet/) — 4.2 out of 5 (455 reviews) - [Mailgun](https://www.capterra.com/p/159630/Mailgun/) — 4.3 out of 5 (197 reviews) - [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) — 4.5 out of 5 (6,252 reviews) ### Email Management - [Mailgun](https://www.capterra.com/p/159630/Mailgun/) — 4.3 out of 5 (197 reviews) - [Salesforce Marketing Cloud](https://www.capterra.com/p/248536/Salesforce-Marketing-Cloud/) — 4.2 out of 5 (531 reviews) - [InboxAlly](https://www.capterra.com/p/237293/InboxAlly/) — 4.8 out of 5 (6 reviews) ### Automated Testing - [Autify](https://www.capterra.com/p/198451/Autify/) — 5.0 out of 5 (3 reviews) - [ACCELQ](https://www.capterra.com/p/161589/accelQ/) — 4.9 out of 5 (145 reviews) - [Testiny](https://www.capterra.com/p/10004572/Testiny/) — 5.0 out of 5 (5 reviews) ### Email Tracking - [SendGrid](https://www.capterra.com/p/204113/SendGrid/) — 4.2 out of 5 (753 reviews) - [GMass](https://www.capterra.com/p/168452/GMass/) — 4.8 out of 5 (1,421 reviews) - [Pinpointe](https://www.capterra.com/p/134176/Pinpointe/) — 4.7 out of 5 (55 reviews) ---