HollerBox — WordPress Popup Plugin
HollerBox — Fast & Effective Popups & Lead-Generation
by Adrian Tobey · WordPress.org page · Website
HollerBox has 2,000+ active installs on WordPress.org and 194,649 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on July 27, 2026, tested up to WordPress 7.0.4.
HollerBox at a glance
Is HollerBox well maintained?
Features
The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.
- Trigger popups based on inactivity
- Banner and Footer Bar layout
- FOMO (sale notifications)
- Sidebar layout
- Popup Scheduling (Date Scheduling)
- CRM Integrations
HollerBox reviews and ratings
32 reviews on WordPress.org, with the most recent ones as their authors posted them.
32 reviews
- 5★
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30
- 4★
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0
- 3★
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0
- 2★
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1
- 1★
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1
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It works
Works without problem. Simple configuration.
dareko -
Doesn't work
I installed the plugin and when trying to create my first popup I got the following error: “We could not load the editor because the defined template is no longer available.” I can't create any popups. Very disappointing, I really wanted to try this.
Carlos Rodríguez -
I like it.
I was looking for something lightweight, simple, and, with an intuitive real-time interface for my client. This met the requirements. Here are some sugestions for improvement, though. Adding a template with a picture and button. Now, the only templates with pictures are the ones with sign-up forms. Adding an option to set a lifetime of a cookie when the modal window is closed, including a session cookie for example. Adding an option to open a link assigned to a button in a new window. Don't load styles when no window is active. It can be simply done by checking whether any post of hollerbox type is published.
fkoomek -
Spamming!
I was hoping that this plugin was good... Luckily I only installed it on my staging page. That page got permanently spammed by a message that says "Attention: It looks like MailHawk is installed but is not connected to the MailHawk service." I don't have Mail Hawk and I don't want it. But this message appears on top of all my sites in the admin area now, even after deleting the holler box plugin. Thankfully I can just renew my staging page and the spamming is over. But that's real shady business!
asienchris -
stopped working randomly on 10 sites
Garbage plugin, installed on 10 websites, after an update all popups stopped working. When I try to edit it says "We could not load the editor because the defined template is no longer available."
Winston -
Buggy!
No. The software was riddled with bugs and modal popups that would display when the code threw an error. Really amateurish. I got a refund.
hikingdog
Where HollerBox ranks on WordPress.org
The rankings we track that HollerBox appears in, and how its position changed over 30 days.
| Ranking | WordPress.org placement | Position | 30 days |
|---|---|---|---|
| Best Popup Plugins | #52 by tag, #63 in search | #39 | – |
| Best Lead Generation Plugins | #9 in search, not tagged | #40 | – |
HollerBox alternatives
Plugins that solve the same problem, ranked by how closely they overlap with HollerBox.
-
Popup Maker 700,000+ installs · 4.9 -
OptinMonster 1 million+ installs · 4.3 -
Hustle 90,000+ installs · 4.4 -
WowOptin 1,000+ installs · 5.0 -
MailOptin 10,000+ installs · 4.8
Details
Get more leads and sales with effective popups that convert! Integrate HollerBox with your favorite CRM and email marketing tools.
The full description, screenshots and every review live on the WordPress.org page.
Rankings HollerBox competes in
Tags
- marketing
- Optin
- popup
- popups
More from Adrian Tobey
-
Groundhogg 2,000+ installs -
FormLift 400+ installs -
MailHawk 300+ installs -
Auto Fill Form Fields 70+ installs
- Version
- 2.3.13
- Last updated
- Jul 27, 2026
- First published
- Jun 6, 2017
- Requires WordPress
- 5.0
- Tested up to
- 7.0.4
- Requires PHP
- –
- Pricing
- Free on WordPress.org
HollerBox FAQ
What does HollerBox do?
According to its WordPress.org readme, HollerBox offers Trigger popups based on inactivity, Banner and Footer Bar layout, FOMO (sale notifications), Sidebar layout and Popup Scheduling (Date Scheduling).
How many active installs does HollerBox have?
WordPress.org reports 2,000+ active installs for HollerBox as of September 7, 2026.
Is HollerBox still maintained?
Yes. The last release was on July 27, 2026 and it is tested up to WordPress 7.0.4.
Is HollerBox free?
HollerBox is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.
Where does HollerBox rank among Popup Plugins?
HollerBox is #39 in the WordPress.org Popup Plugins ranking.