Side-by-side comparison · 24 data points
Build better customer relationships without having to leave your email inbox with the Insightly CRM Sidebar for Gmail.
| GMass for Gmail™ | Insightly CRM Sidebar | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
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| Developer | ||
| Listed | — | — |
| Last updated | — | — |
A powerful mail merge and mass email system for Gmail™.
| Metric | GMass for Gmail™ | Insightly CRM Sidebar |
|---|---|---|
| Rating | ★ 4.8 ★ | 2.9 ★ |
| Total reviews | ★ 6.8k | 178 |
| Active installs | 1,212,112+ | 112,457+ |
| Free plan | Yes | Yes |
| Pricing | Free of charge with paid features | Free of charge |
Based on the data on this page, GMass for Gmail™ is the stronger choice for most Google Workspace Marketplace admins — 4.8★ vs Insightly CRM Sidebar's 2.9★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
Pricing entry tiers: GMass for Gmail™ at Free of charge with paid features, Insightly CRM Sidebar at Free of charge. 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 178), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Insightly CRM Sidebar'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 GMass for Gmail™; mid-market and enterprise admins with specific feature requirements should evaluate both — Insightly CRM Sidebar's 178-review base may include the workflow context that matches your specific use case better than GMass 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: GMass for Gmail™ audit • Insightly CRM Sidebar audit
Both GMass for Gmail™ and Insightly CRM Sidebar offer paid plans only. GMass for Gmail™ starts at Free of charge with paid features; Insightly CRM Sidebar starts at Free of charge. Compare the per-tier features in the Pricing section above before committing.
GMass for Gmail™ has the higher average rating (4.8★ from 6,790 reviews) compared to Insightly CRM Sidebar (2.9★ from 178 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
GMass for Gmail™ holds the higher average rating (4.8★ vs 2.9★). 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 178), 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). Insightly CRM Sidebar typically suits early-stage and growth-mode teams based on its published review base (178 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 Insightly CRM Sidebar 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 Insightly CRM Sidebar" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.