Mailshake vs GMass
Side-by-side from the Top 11 ranking of Instantly.ai vs Smartlead.ai vs Lemlist: 11 Best Cold Email Software Tools 2026. Last verified June 21, 2026.
The short answer
Mailshake ranks higher on Top 11 (#5 vs #10) for SDRs and founders running outbound cold email campaigns. The most intuitive and easy-to-use platform for launching campaigns quickly.
At a glance
| Mailshake | GMass | |
|---|---|---|
| Top 11 rank | #5 / Instantly.ai vs Smartlead.ai vs Lemlist: 11 Best Cold Email Software Tools 2026 | #10 / Instantly.ai vs Smartlead.ai vs Lemlist: 11 Best Cold Email Software Tools 2026 |
| Score (out of 9.4) | 8.5 | 7.6 |
| Best for | Simplicity and ease of use | Gmail-native workflow |
| Pricing | $$ ($59 to $99/mo) | $ ($20 to $50/mo) |
| HQ | Austin, USA | Mumbai, India |
| Founded | 2015 | 2015 |
Mailshake
The most intuitive and easy-to-use platform for launching campaigns quickly.
mailshake.comSee full entry in Instantly.ai vs Smartlead.ai vs Lemlist: 11 Best Cold Email Software Tools 2026
GMass
Best for managing campaigns directly inside the Gmail interface.
www.gmass.coSee full entry in Instantly.ai vs Smartlead.ai vs Lemlist: 11 Best Cold Email Software Tools 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.