Side-by-side comparison
| Metric | HollerBox — Fast & Effective Popups & Lead-Generation | SMTP MAILER WP |
|---|---|---|
| Rating | 4.8 ★ | ★ 5.0 ★ |
| Total reviews | ★ 32 | 9 |
| Active installs | 2,000+ | 10+ |
| Free plan | — | — |
HollerBox and SMTP MAILER WP each lead on different measured dimensions — pick by the one that matters most to you.
Built only from the WordPress Plugin Directory listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: HollerBox — Fast & Effective Popups & Lead-Generation audit • SMTP MAILER WP audit
| Keyword | HollerBox | SMTP MAILER WP |
|---|---|---|
| chatbot | #157 | Not ranked |
| form builder | #866 | Not ranked |
No tracked changes.
SMTP MAILER WP has the higher average rating (5.0★ from 9 reviews) compared to HollerBox — Fast & Effective Popups & Lead-Generation (4.8★ from 32 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
SMTP MAILER WP holds the higher average rating (5.0★ vs 4.8★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the WordPress Plugin Directory. AppRanks doesn't measure setup time directly; HollerBox — Fast & Effective Popups & Lead-Generation has more published reviews to read for user-reported install experience (32 vs 9).
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the WordPress Plugin Directory data. What it can show: HollerBox — Fast & Effective Popups & Lead-Generation has 32 published reviews; SMTP MAILER WP has 9 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. HollerBox — Fast & Effective Popups & Lead-Generation and SMTP MAILER WP both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from SMTP MAILER WP" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.