These 10 apps lead HubSpot App Marketplace's Service category as of September 2026 — ranked by user rating, review count, and audit score, refreshed every 24 hours from the canonical HubSpot marketplace listing.
Discover the top-rated service apps available on HubSpot App Marketplace. Rankings based on user ratings, review count, and market performance.
Updated · methodology: audit-score · About AppRanks
This is the curated shortlist — the top-ranked service apps. To browse every service app on HubSpot App Marketplace, see the full Service category.
This list ranks the top 10 HubSpot apps classified under Service by the source marketplace's own taxonomy — apps appear here only because HubSpot App Marketplace itself tags them in this category, not because of any AppRanks editorial decision. Within the category set, ranking uses a Bayesian-ish blend of average rating × natural log of review count: the formula is , so a high-rating-low-review app doesn't leapfrog an established listing on a single 5-star outlier. The blend favors apps that are both well-reviewed AND have an established user base.
rating × ln(reviewCount + 1)AppRanks does not invent a proprietary score for public surfaces — the rank shown mirrors the marketplace's published category position exactly, scraped on a 12-24 hour refresh cycle from the canonical HubSpot App Marketplace listing. The category lookup happens at request time and the page is cached at the edge for 1 hour to absorb traffic spikes; the underlying ranking data refreshes daily so the list stays accurate within one day of any source change. AppRanks does not editorially promote or demote apps based on advertiser or partnership status — the same blend formula applies uniformly across every app on this platform.
Ranks #1 in the HubSpot App Marketplace service category as a mixed-rating listing. Currently has an established review history (3,417 reviews). Pricing: Free plan available. Position holds for the trailing 30-day window.
Pick if: Pick this if budget is the constraint — Gmail ships a free tier and has 3,417 merchants reviewing it, so the no-card path is well-trodden.
Ranks #2 in the HubSpot App Marketplace service category as a well-rated listing. An established review history (2,074 reviews) with a no-rating average. Pricing: Free plan available. Position holds for the trailing 30-day window.
Pick if: Pick this if budget is the constraint — Google Calendar ships a free tier and has 2,074 merchants reviewing it, so the no-card path is well-trodden.
Ranks #3 in the HubSpot App Marketplace service category as a mixed-rating listing. Tracks at no-rating across 3,150 reviews — established review history. Pricing: From $5/mo. Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging service option — Outlook ranks #3 on HubSpot App Marketplace and is still building review depth.
Holds position #4 in the HubSpot App Marketplace service category as a mixed-rating listing. Currently has a growing review traction (411 reviews). Pricing: Free plan available. Refresh: daily from the source marketplace.
Currently sits at #5 in the HubSpot App Marketplace service category as a mixed-rating listing. A growing review traction (401 reviews) with a no-rating average. Pricing: Free plan available. Refresh: daily from the source marketplace.
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Holds position #6 in the HubSpot App Marketplace service category as a newly-listed listing. Tracks at no-rating across 0 reviews — early-stage review volume. Pricing: Free plan available. Refresh: daily from the source marketplace.
Currently sits at #7 in the HubSpot App Marketplace service category as a mixed-rating listing. Currently has an established review history (1,545 reviews). Pricing: From $5/mo. AppRanks tracks this listing on a 24-hour cycle.
Holds position #8 in the HubSpot App Marketplace service category as a mixed-rating listing. A growing review traction (306 reviews) with a no-rating average. Pricing: Free plan available. AppRanks tracks this listing on a 24-hour cycle.
Currently sits at #9 in the HubSpot App Marketplace service category as a mixed-rating listing. Tracks at no-rating across 224 reviews — growing review traction. Pricing: Free plan available. AppRanks tracks this listing on a 24-hour cycle.
Holds position #10 in the HubSpot App Marketplace service category as a mixed-rating listing. Currently has a growing review traction (372 reviews). Pricing: Advanced Plus. Source: HubSpot App Marketplace's own published category position.
Same data as the ranked cards, condensed into a sortable-by-eye grid: rating × review depth × pricing tier across the top 10 service apps on HubSpot App Marketplace.
| # | App | Rating | Reviews | Pricing |
|---|---|---|---|---|
| 1 | Gmail | 4.0★ | 3,417 | Free plan available |
| 2 | Google Calendar | 4.0★ | 2,074 | Free plan available |
| 3 | Outlook | 3.0★ | 3,150 | From $5/mo |
| 4 | HubSpot for WordPress | 3.9★ | 411 | Free plan available |
| 5 | Zapier | 3.3★ | 401 | Free plan available |
| 6 | HubSpot connector for Claude | — | 0 | Free plan available |
| 7 | Outlook Calendar | 3.4★ | 1,545 | From $5/mo |
| 8 | Meta Ads | 3.4★ | 306 | Free plan available |
| 9 | Google Ads | 3.1★ | 224 | Free plan available |
| 10 | LinkedIn Sales Navigator | 2.0★ | 372 | Advanced Plus |
Want to compare any two apps in detail (features, ratings trend, pricing plans side-by-side)? Open the head-to-head page from the "Compare to #N" link on each card above. Custom multi-app comparisons, historical rank trajectory, and CSV export are available on a paid plan.
Methodology details: /glossary/audit-score · /about.
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