| Gmail | Kickbox | |
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| Metric | Gmail | Kickbox Email Validation |
|---|---|---|
| Rating | 4.0 ★ | ★ 4.0 ★ |
| Total reviews | ★ 3.4k | 37 |
| Active installs | 534,442+ | 3,537+ |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Pricing tiers | ★ 3 tiers | 2 tiers |
| Listed since | Mar 2014 | May 2017 |
Gmail and Kickbox Email Validation are evenly matched on rating (4.0★ vs 4.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
Pricing entry tiers: Gmail at Free plan available, Kickbox Email Validation at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.
Gmail has the larger user base (3,417 reviews vs 37), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Kickbox Email Validation's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most teams the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical HubSpot App Marketplace listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Gmail audit • Kickbox Email Validation audit
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Both Gmail and Kickbox Email Validation offer paid plans only. Gmail starts at Free plan available; Kickbox Email Validation starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
Gmail (4.0★, 3,417 reviews) and Kickbox Email Validation (4.0★, 37 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
Kickbox Email Validation holds the higher average rating (4.0★ vs 4.0★). 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 HubSpot App Marketplace. Gmail has the deeper published review base (3,417 vs 37), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.
Gmail typically suits early-stage and growth-mode teams based on its published review base (3,417 reviews). Kickbox Email Validation typically suits early-stage and growth-mode teams based on its published review base (37 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Gmail and Kickbox Email Validation 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 Kickbox Email Validation" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.