Side-by-side comparison · 24 data points
A powerful mail merge and mass email system for Gmail™.
| GMass for Gmail™ | Shared Contacts Manager for Google Contacts™ | |
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| Description | ||
| Screenshots | images | images |
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Shared Contacts Manager for Google™ enables team members to share contacts in one click & access them from any device. Set user-level permissions. Auto-sync across devices instantly.
| Metric | GMass for Gmail™ | Shared Contacts Manager for Google Contacts™ |
|---|---|---|
| Rating | 4.8 ★ | ★ 5.0 ★ |
| Total reviews | ★ 6.8k | 2.4k |
| Active installs | 1,212,112+ | 165,037+ |
| Free plan | Yes | Yes |
| Pricing | Free of charge with paid features | Free of charge trial |
Shared Contacts Manager for Google Contacts™ edges out GMass for Gmail™ on rating (5.0★ vs 4.8★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.
Pricing entry tiers: GMass for Gmail™ at Free of charge with paid features, Shared Contacts Manager for Google Contacts™ at Free of charge trial. 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.
GMass for Gmail™ has the larger user base (6,790 reviews vs 2,364), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Shared Contacts Manager for Google Contacts™'s smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended by size: small/early-stage admins who need fast install and low risk should default to Shared Contacts Manager for Google Contacts™; mid-market and enterprise admins with specific feature requirements should evaluate both — GMass for Gmail™'s 6,790-review base may include the workflow context that matches your specific use case better than Shared Contacts Manager for Google Contacts™'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 Google Workspace 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: GMass for Gmail™ audit • Shared Contacts Manager for Google Contacts™ audit
Both GMass for Gmail™ and Shared Contacts Manager for Google Contacts™ offer paid plans only. GMass for Gmail™ starts at Free of charge with paid features; Shared Contacts Manager for Google Contacts™ starts at Free of charge trial. Compare the per-tier features in the Pricing section above before committing.
Shared Contacts Manager for Google Contacts™ has the higher average rating (5.0★ from 2,364 reviews) compared to GMass for Gmail™ (4.8★ from 6,790 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Shared Contacts Manager for Google Contacts™ 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 Google Workspace Marketplace. GMass for Gmail™ has the deeper published review base (6,790 vs 2,364), 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.
GMass for Gmail™ typically suits established teams with steady usage based on its published review base (6,790 reviews). Shared Contacts Manager for Google Contacts™ typically suits early-stage and growth-mode teams based on its published review base (2,364 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. GMass for Gmail™ and Shared Contacts Manager for Google Contacts™ 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 Shared Contacts Manager for Google Contacts™" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.