GMass vs Smartlead
Smartlead is the platform agencies build on; GMass is the extension solo operators send from. Both are among the cheaper options in this catalog, and the $29.95 versus $39 entry gap makes them look comparable. They are not — the difference is whether you are buying software that scales with mailboxes or software that scales with seats.
Smartlead
Scalable cold email with unlimited mailboxes, warmup, and an API-first design.
| Feature | GMass | Smartlead |
|---|---|---|
| Rating | 4.2 | 4.5 |
| Starting price | $29.95/momonthly billing; $20/mo billed annually ($249/yr) | $39/momonthly billing |
| Free trial | Yes | Yes |
| Runs inside | Gmail / Google Workspace | — |
| Delivery | Chrome extension | — |
| Individual plans | $29.95 / $39.95 / $59.95 monthly | — |
| Annual discount | $20/mo billed yearly (Standard) | — |
| Team plans | 5 → 100 users, priced per seat | — |
| Email accounts | — | Unlimited |
| Warmup included | — | Warmup pool (Unlimited plans) |
| Unified inbox | — | Master inbox |
| API access | — | Unlimited Smart plan+ |
| Whitelabel | — | Higher tiers |
Hands-on field test
In progressWe plan to run identical 200-contact campaigns from freshly warmed mailboxes on each platform (same copy, same sending window, same domains) and measure inbox-placement rate via seed tests, plus bounce and reply rates. Until that runs we quote no deliverability figures.
The verdict
Smartlead is the better long-term platform for anyone whose plan involves growth: unlimited mailboxes on every plan at one flat price, an API agencies build whitelabelled products on, and a free trial with no credit card. GMass wins on immediacy and on annual price — $20/mo billed yearly is the cheapest entry point of any sending tool here — but its team plans are per seat, so the cost curves cross quickly as you add people.
Choose GMass if you are one person or a very small team in Gmail, and the annual rate at $20/mo is the number that matters. Choose Smartlead if you expect to add mailboxes, clients or teammates — unlimited mailboxes at a flat rate is the structural advantage.
GMass vs Smartlead: FAQs
- Which is cheaper as a team grows?
- Smartlead, and the gap widens. Smartlead charges one flat fee regardless of how many mailboxes you connect. GMass team plans are priced per seat, from 5 users up to 100, so cost rises with headcount.
- Can I try either free?
- Both, differently. Smartlead offers a free trial with no credit card. GMass needs neither a card nor a signup form — you install the extension and start sending.
- Which is better for agencies?
- Smartlead, without much argument. Its API and whitelabelling on higher tiers are aimed directly at agencies reselling sending. GMass has no equivalent, and its Gmail dependency makes managing many client domains awkward.
- What is the real price difference?
- GMass Standard is $29.95/mo monthly or $20/mo billed annually. Smartlead Base is $39/mo monthly with roughly 17% off annually. So GMass is cheaper at one seat and Smartlead is cheaper the moment you need several.
Comparing more than two?
Put GMass, Smartlead and up to two others side by side on price, mailboxes, warmup and trials.
Open the comparison table →