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1. Listing metadata
Field-level data| Gmail | Klaviyo | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | — | — |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
2. Pricing & plans
Listed prices · monthly · USDTier
| Gmail | Klaviyo | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | — | — |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
| Metric | Gmail | Klaviyo |
|---|---|---|
| Rating | 4.0 ★ | — |
| Total reviews | 3.4k | 0 |
| Active installs | 533,459+ | 204+ |
| Free plan | ★ Yes | — |
| Pricing | ★ Free plan available | From $29/mo |
| Pricing tiers | 3 tiers | 3 tiers |
| Listed since | Mar 2014 | Jul 2026 |
Based on the data on this page, Gmail is the stronger choice for most HubSpot App Marketplace teams — 4.0★ vs Klaviyo's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
On pricing, Gmail offers a free tier (Free plan available) while Klaviyo starts at From $29/mo. For early-stage teams validating fit, the free-tier path lets you run the app on real workloads before committing budget.
Gmail has the larger user base (3,416 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Klaviyo's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended by size: small/early-stage teams who need fast install and low risk should default to Gmail; mid-market and enterprise teams with specific feature requirements should evaluate both — Klaviyo's 0-review base may include the workflow context that matches your specific use case better than Gmail's broader-but-shallower coverage.
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 • Klaviyo audit
Gmail is the cheaper option — it offers a free plan (Free plan available). Klaviyo starts at From $29/mo. Both publish their pricing on the HubSpot App Marketplace; AppRanks mirrors what's listed on each refresh cycle.
AppRanks cannot separate these two on rating, because neither publishes one. Gmail does carry the larger published review base (3,416 vs 0). 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 (3,416 vs 0), 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 (3,416 reviews). Klaviyo typically suits early-stage and growth-mode teams based on its published review base (0 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 Klaviyo 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 Klaviyo" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.