Side-by-side comparison · 24 data points
ContactsFlow™ lets teams create, share, manage, and sync Google Contacts™. Organize contacts in shared labels, set permissions, and keep contacts updated across Gmail™.
| ContactsFlow™ for Gmail™ | GMass for Gmail™ | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | — | images |
| Languages | ||
| Platforms | ||
| Developer | — | |
| Listed | — | — |
| Last updated | — | — |
A powerful mail merge and mass email system for Gmail™.
| Metric | ContactsFlow™ for Gmail™ | GMass for Gmail™ |
|---|---|---|
| Rating | ★ 4.9 ★ | 4.8 ★ |
| Total reviews | 4.3k | ★ 6.7k |
| Active installs | — | 1,171,548+ |
| Free plan | — | ★ Yes |
| Pricing | — | Free of charge with paid features |
| Built for Shopify | — | — |
| Featured placements | 1 | ★ 2 |
ContactsFlow™ for Gmail™ edges out GMass for Gmail™ on rating (4.9★ vs 4.8★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number. GMass for Gmail™ has the larger user base (6,735 reviews vs 4,303), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. ContactsFlow™ for Gmail™'s smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to ContactsFlow™ for Gmail™; mid-market and enterprise merchants with specific feature requirements should evaluate both — GMass for Gmail™'s 6,735-review base may include the workflow context that matches your specific use case better than ContactsFlow™ for 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 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: ContactsFlow™ for Gmail™ audit • GMass for Gmail™ audit
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ContactsFlow™ for Gmail™ has the higher average rating (4.9★ from 4,303 reviews) compared to GMass for Gmail™ (4.8★ from 6,735 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
It depends on what you're optimizing for. ContactsFlow™ for Gmail™ fits better if you prioritize rating consistency; GMass for Gmail™ is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Google Workspace Marketplace marketplace. GMass for Gmail™ has more onboarding documentation maturity (6,735 reviews vs 4,303), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
ContactsFlow™ for Gmail™ typically suits early-stage and growth-mode stores based on its review-base composition (4,303 reviews). GMass for Gmail™ aligns more with established stores with steady traffic (6,735 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. ContactsFlow™ for Gmail™ and GMass for Gmail™ 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 ContactsFlow™ for Gmail™" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.