What users are saying about
3 Ratings
8 Ratings
3 Ratings
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Score 8.3 out of 101
8 Ratings
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Score 9.8 out of 101

Likelihood to Recommend

250ok

250ok is a great tool for companies that have recently switched ESPs to monitor inbox placement or for companies that historically have been having email deliverability issues and would like to learn about the root cause and improve. Unlike ReturnPath, 250ok doesn't offer certification, but honestly, you don't need certification if you follow the Gmail/Microsoft/AOL/Yahoo bulk sender guidelines. I haven't seen a company which significantly improved their results with that certification and I've been working for one major ESP for 7 years. 250ok is a good diagnostic/monitoring tool but it is not a panacea for those who continue to violate sender guidelines due to poor list/content management.
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Customer.io

Customer.io is perfect for drip email campaigns, meaning any scenario where you need to send a series of emails to a certain client. Ideal for engaging new prospects, maybe ones on a free trial for your own product, or for upselling clients based on their activity on your own site or their engagement with your own products. Also ideal for onboarding and tutorials/training emails. It's perfect if you want your email series to change dynamically based on customer engagement: for example, let's say you get a new client and want them to complete 3 key steps to register with you. If they take Step 1, but not Step 2 and 3, you don't want to email them asking to do Step 1. So Customer.io would automatically skip your "Step 1 Email" and move on to Step 2 and 3. It's also excellent for A/B testing, so you can optimize whatever you're using it for.
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Feature Rating Comparison

Email & Online Marketing

250ok
8.7
Customer.io
8.7
A/B testing
250ok
8.0
Customer.io
7.1
Mobile optimization
250ok
10.0
Customer.io
10.0
Email deliverability
250ok
9.7
Customer.io
9.5
List management
250ok
7.0
Customer.io
10.0
WYSIWYG email editor
250ok
Customer.io
8.1
Dynamic content
250ok
Customer.io
7.3
Ability to test dynamic content
250ok
Customer.io
7.3
Triggered drip sequences
250ok
Customer.io
10.0

Reporting & Analytics

250ok
8.6
Customer.io
6.8
Dashboards
250ok
8.7
Customer.io
7.4
Standard reports
250ok
8.7
Customer.io
6.0
Custom reports
250ok
8.5
Customer.io
7.0

Pros

250ok

  • They provide a wide-ranging tool to view your email templates in many different email clients under different circumstances. We used this tool to identify specific issues we couldn't test that a small subset of users had complained about.
  • The Seedlist Optimizer Tool does the legwork for you to identify which ESPs are used the most and gives you a custom seed list for testing.
  • The Campaign Diagnostics report shows immediate feedback after sending on how your email is performing and where you can improve in the future.
Joe Hallissey profile photo

Customer.io

  • Drip emails
  • Analytics and reporting
  • Integrations and API access
Sean Anderson profile photo

Cons

250ok

  • Within the 250ok dashboard, there are a few different types of tracking and monitoring tools that aren't explained well within the product. Their uses were explained during onboarding but we continue to go back to the self-help to confirm best practices. I hope they work on more contextual help to improve this experience.
  • While the product does work if you have shared IP addresses, it took us some time after launch to filter out other's email data that get included during monitoring.
Joe Hallissey profile photo

Customer.io

  • Reporting could be more customizable -- for example, seeing breakdowns of analytics by cohorts took a little bit of finagling
Sean Anderson profile photo

Alternatives Considered

250ok

After using Litmus for a few years, we enjoyed their feature set but were not pleased with price and feature changes. Email on Acid was a good choice for testing your email templates but didn't have enough features for email deliverability monitoring.Between Return Path and 250ok, we were interested in the whitelisting that Return Path offered, but could not get dedicated IP addresses required by them to move forward.
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Customer.io

I think Customer.io is a unique product. Most of the other email marketing products you'll find are more B2B focused and don't provide a good solution for high volume emails at a low price. If you're a B2C company, I can't think of any email product I'd rather use than Customer.io
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Return on Investment

250ok

  • Using 250ok, we were able to identify problem areas with specific email clients that we couldn't test manually (really old ones). Once solved, reactivated lapsed customers.
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Customer.io

  • Saved time
  • Customer communication
  • Returning customers
No photo available

Pricing Details

250ok

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
Optional

250ok Editions & Modules

Additional Pricing Details

Customer.io

General

Free Trial
Yes
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Customer.io Editions & Modules

Edition
Small Business$2501
Startup$7501
Enterprise$1,2501
Broadcast$2,5001
  1. month
Additional Pricing Details
Every edition includes free messages and profiles. Small Business: 50,000 profiles / 100,000 free messages per month Startup: 250,000 profiles / 500,000 free messages per month Enterprise: 500,000 profiles / 1,000,000 free messages per month Broadcast: 1,000,000 profiles / 5,000,000 free messages per month

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