Compare Email on Acid and Inbox Monster 
At a Glance
Market Segments
Mid-Market (46.3% of reviews)
Mid-Market (53.1% of reviews)
Entry-Level Pricing
$73 per month*
No pricing available
Email on Acid
Star Rating
(42)4.5 out of 5
Market Segments
Mid-Market (46.3% of reviews)
Entry-Level Pricing
$73 per month*
Browse all 4 pricing plansInbox Monster
Star Rating
(32)4.9 out of 5
Market Segments
Mid-Market (53.1% of reviews)
Entry-Level Pricing
No pricing available
Learn more about Inbox MonsterSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- Users report that Email on Acid excels in its Spam Filter Testing with a score of 9.0, while Inbox Monster shines in Quality of Support with a remarkable score of 9.8, indicating that users find Inbox Monster more responsive and helpful when issues arise.
- Reviewers mention that Email on Acid's Editing Platform scores 8.8, which some users find less intuitive compared to Inbox Monster's overall ease of use score of 9.3, suggesting that Inbox Monster may offer a more user-friendly interface for editing emails.
- G2 users highlight that Email on Acid has a Campaign Performance score of 9.4, which is praised for its detailed analytics, while Inbox Monster's Domain Reputation score of 9.7 is noted for providing users with better insights into their email deliverability and reputation management.
- Users on G2 report that Email on Acid's Time to Open score of 7.7 is a drawback, as it indicates slower performance in tracking email engagement compared to Inbox Monster's superior metrics in this area.
- Reviewers mention that Email on Acid's Policy Compliance score of 9.1 is commendable, but Inbox Monster's perfect score of 10.0 in Has the product been a good partner in doing business? suggests a stronger alignment with user needs and expectations.
- Users say that while Email on Acid offers solid Analytics with a score of 9.3, Inbox Monster's overall performance in Alerts at 9.3 and Processing Time at 8.8 indicates a more responsive and efficient system for monitoring email campaigns.
Pricing
Entry-Level Pricing
Email on Acid
The Basics
$73
per month*
*Billed one time annually
- Unlimited Email Previews
- Partial Campaign Precheck
- Email Editor
Inbox Monster
No pricing availableFree Trial
Email on Acid
Free Trial is available
Inbox Monster
No trial information availableRatings
Meets Requirements
9.1
29
9.6
27
Ease of Use
9.1
29
9.2
30
Ease of Setup
9.5
10
9.2
21
Ease of Admin
9.8
11
9.8
9
Quality of Support
8.9
15
9.8
27
Has the product been a good partner in doing business?
9.2
10
10.0
11
Product Direction (% positive)
8.8
30
10.0
27
Features by Category
Diagnosis
Not enough data
9.4
21
Not enough data
9.7
21
Not enough data
8.4
19
Not enough data
9.2
20
Tracking
Feature Not Available
8.8
19
Feature Not Available
9.1
20
Not enough data
8.2
17
Feature Not Available
7.7
17
Not enough data
9.3
20
Reporting
Not enough data
9.3
19
Not enough data
9.7
21
Feature Not Available
9.4
18
Feature Not Available
8.6
19
Platform Basics
8.8
7
Not enough data
9.0
8
Not enough data
Feature Not Available
Not enough data
9.2
8
Not enough data
9.2
8
Not enough data
Platform Data
8.5
8
Not enough data
Feature Not Available
Not enough data
9.3
7
Not enough data
Analytics
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Customizations
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Generative AI
Not enough data
Not enough data
Categories
Categories
Shared Categories
Email on Acid and Inbox Monster are categorized as Email Deliverability and Email Testing
Unique Categories
Email on Acid has no unique categories
Inbox Monster is categorized as Email Tracking
Reviews
Reviewers' Company Size
Email on Acid
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Inbox Monster
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Marketing and Advertising
28.6%
Computer Software
16.7%
Information Technology and Services
9.5%
Internet
7.1%
Telecommunications
4.8%
Other
33.3%
Financial Services
21.9%
Marketing and Advertising
12.5%
Retail
6.3%
Information Technology and Services
6.3%
Higher Education
6.3%
Other
46.9%
Most Helpful Reviews
Email on Acid
Most Helpful Favorable Review
Josh M.
Verified User in Marketing and Advertising
I like the usability of the product as well as the valuable information they provide to their users as well as on their blog. I always pay attention when they publish content about email marketing.
Most Helpful Critical Review
Verified User in Marketing and Advertising
It doesn't actually pick up rendering issues and is missing key email clients. We have had 11 incidents in which campaigns have deployed which were perfect in email on acid - but we had complaints of rendering issues. We then took the exact same HTML and...
Inbox Monster
Most Helpful Favorable Review
Brandon C.
Verified User in Financial Services
Their support is top-notch! It's a super useful tool and has helped us ensure our emails are making it into the inbox
Most Helpful Critical Review
Josh M.
Verified User in Marketing and Advertising
I like the usability of the product as well as the valuable information they provide to their users as well as on their blog. I always pay attention when they publish content about email marketing.
Brandon C.
Verified User in Financial Services
Their support is top-notch! It's a super useful tool and has helped us ensure our emails are making it into the inbox
Verified User in Marketing and Advertising
It doesn't actually pick up rendering issues and is missing key email clients. We have had 11 incidents in which campaigns have deployed which were perfect in email on acid - but we had complaints of rendering issues. We then took the exact same HTML and...
Alternatives
Discussions
Email on Acid has no discussions with answers
Inbox Monster has no discussions with answers
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