What users are saying about
3 Ratings
6 Ratings
3 Ratings
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Score 8.3 out of 101
6 Ratings
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Score 9.3 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.
No photo available

Knak.

If you have Marketo or Pardot and have emails that might be somewhat simple to slightly complex, without the budget for a developer, Knak is the right solution for you. If you have complex emails that require a lot of code or customization and have the in-house resources, Knak might not be the perfect solution
Akande Davis profile photo

Feature Rating Comparison

Email & Online Marketing

250ok
8.7
Knak.
9.4
A/B testing
250ok
8.0
Knak.
10.0
Mobile optimization
250ok
10.0
Knak.
10.0
Email deliverability
250ok
9.7
Knak.
5.0
List management
250ok
7.0
Knak.
10.0
WYSIWYG email editor
250ok
Knak.
10.0
Dynamic content
250ok
Knak.
10.0
Ability to test dynamic content
250ok
Knak.
10.0
Landing pages
250ok
Knak.
10.0
Triggered drip sequences
250ok
Knak.
10.0

Reporting & Analytics

250ok
8.6
Knak.
Dashboards
250ok
8.7
Knak.
Standard reports
250ok
8.7
Knak.
Custom reports
250ok
8.5
Knak.

Pros

250ok

  • Use of recipients' engagement data to display campaign performance instead of panel data.
  • Easy to use interface.
  • Access to spam trap network and granular reports in real time.
  • Blacklist monitoring in real time.
  • Multi-point compliance checks.
No photo available

Knak.

  • Allows for responsive email template design
  • Easy to organize emails
  • Great syncing and updating for existing emails
Akande Davis profile photo

Cons

250ok

  • Documentation website could use some improvement (i.e. Search on the API Guide page, videos in the User Guide).
  • Can't copy/paste certain things from the UI (i.e. IP ranges).
  • Doesn't integrate directly with some ESPs although it's easy to just use new seed lists.
No photo available

Knak.

  • Sometimes there are issues with buggy code
  • Updates sometimes will break emails
Akande Davis profile photo

Alternatives Considered

250ok

We use both 250ok and ReturnPath in the company (because we're an ESP) and both have their own pros and cons. Return Path uses panel data while 250ok uses recipients' engagement date for reporting. Both ways have pros and cons but you can't say one is better than the other. They're just different. ReturnPath also offers certification which (I have to be honest) is not as relevant anymore as there is only one way to fix deliverability issues nowadays - by following bulk sender guidelines posted by Gmail, Yahoo, AOL, Microsoft, and other ISPs. ReturnPath has a better documentation website while 250ok could use some refinement. With 250ok you can choose the tools you need and build your own package and save money. With ReturnPath - not so much. 250ok also has partners across the globe while ReturnPath mostly promotes its own services and consultants.
No photo available

Knak.

Marketo has email templates and you can, of course, create your own - but Knak makes it so much easier to create templates that are nice looking and mobile-optimized.
Lisa Heay profile photo

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.
Joe Hallissey profile photo

Knak.

  • Great return on time investment
  • Great return on our strategy to get new communications out the door
Akande Davis profile photo

Pricing Details

250ok

General

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

Knak.

General

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

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