| GPT Workspace for Gmail™ | Happeo | |
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| Description | ||
| Screenshots | images | images |
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| Listed | — | — |
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Write emails 10x faster with AI. Generate email replies in Gmail™ with GPT latest models.
| Metric | GPT Workspace for Gmail™ | Happeo |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 2.2k | 13 |
| Active installs | 1,831,328+ | 648,497+ |
| Free plan | ★ Yes | — |
| Pricing | Free of charge trial | Not available |
Happeo edges out GPT Workspace for Gmail™ on rating (5.0★ vs 4.9★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.
On pricing, GPT Workspace for Gmail™ offers a free tier (Free of charge trial) while Happeo starts at Not available. For early-stage teams validating fit, the free-tier path lets you run the app on real workloads before committing budget.
GPT Workspace for Gmail™ has the larger user base (2,218 reviews vs 13), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Happeo'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 Happeo; mid-market and enterprise admins with specific feature requirements should evaluate both — GPT Workspace for Gmail™'s 2,218-review base may include the workflow context that matches your specific use case better than Happeo'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: GPT Workspace for Gmail™ audit • Happeo audit
No tracked changes.
GPT Workspace for Gmail™ is the cheaper option — it offers a free plan (Free of charge trial). Happeo starts at Not available. Both publish their pricing on the Google Workspace Marketplace; AppRanks mirrors what's listed on each refresh cycle.
Happeo has the higher average rating (5.0★ from 13 reviews) compared to GPT Workspace for Gmail™ (4.9★ from 2,218 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Happeo holds the higher average rating (5.0★ vs 4.9★). 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. GPT Workspace for Gmail™ has the deeper published review base (2,218 vs 13), 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.
GPT Workspace for Gmail™ typically suits early-stage and growth-mode teams based on its published review base (2,218 reviews). Happeo typically suits early-stage and growth-mode teams based on its published review base (13 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. GPT Workspace for Gmail™ and Happeo 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 Happeo" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.