MailerLite – Signup forms (official) vs Genius Marketo Form Prefill (API-Free) (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
MailerLite – Signup forms (official)
100K+ active installs
Free
Genius Marketo Form Prefill (API-Free)
0 active installs
Free
Quick Verdict
As of April 2026, MailerLite – Signup forms (official) has a higher user rating (3/5 from 40 reviews) and leads in active installations (100K+ vs 0). Both are free WordPress plugins. MailerLite – Signup forms (official) has accumulated 2.2M+ total downloads while Genius Marketo Form Prefill (API-Free) has 1.2K+.
Detailed Comparison
| Metric | MailerLite – Signup forms (official) | Genius Marketo Form Prefill (API-Free) | |
|---|---|---|---|
| Rating | 3/5 | ◄ | N/A |
| Total Reviews | 40 | ◄ | 0 |
| Active Installs | 100K+ | ◄ | 0 |
| Total Downloads | 2.2M+ | ◄ | 1.2K+ |
| Support Resolution | 0% | N/A | |
| Last Updated | 1 month ago | ◄ | 6 years ago |
| First Released | 2014 | 2019 | |
| Age | 12 years | 7 years | |
| WP Requires | 3.0.1+ | 4.5+ | |
| PHP Requires | 7.2.5+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.7.20 | 1.2.6 |
Rating Breakdown
MailerLite – Signup forms (official)
Genius Marketo Form Prefill (API-Free)
Download Trends
Recent Reviews
MailerLite – Signup forms (official) Reviews
Same as everyone else here…
I signed up with mailerlite to manage newsletters (as opposed to ecommerce abandoned cart flows etc). I made an embedded signup form for newsletter subscription. THEN I learned that I needed this very
No longer using it
I’ve had a similar experience to another commenter. Initially the plugin worked well. But later when I click to edit my form, it would redirect to MailerLite website and say “Form not found”. So I tri
Unreliable both as a platform and as a plugin
My experience with MailerLite has been simply disastrous.The problem does not concern only the WordPress plugin, but the entire platform. After numerous attempts the result was always the same:form
Genius Marketo Form Prefill (API-Free) Reviews
No reviews yet
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Frequently Asked Questions
Is MailerLite – Signup forms (official) or Genius Marketo Form Prefill (API-Free) more popular?
Which has better ratings — MailerLite – Signup forms (official) or Genius Marketo Form Prefill (API-Free)?
Are MailerLite – Signup forms (official) and Genius Marketo Form Prefill (API-Free) free?
Which plugin has better support — MailerLite – Signup forms (official) or Genius Marketo Form Prefill (API-Free)?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.