The structural difference
| GMass | SendHustle | |
|---|---|---|
| What it is | Chrome extension inside Gmail | Web app + REST API + SMTP relay |
| Sends through | Your Gmail account | Your verified domain (DKIM + SPF), on SendHustle infrastructure |
| Volume ceiling | Google's Gmail sending limits | Your plan — 300/mo free, 25,000/mo on Pro, 100,000/mo on Scale |
| Reputation risk sits on | Your personal Gmail address | A sending domain you own and can warm, segment or replace |
| Pricing model | Per user / seat | Per volume — team seats don't multiply the bill |
| Billing for India | USD | ₹ at a purchasing-power rate, via UPI or card |
| Transactional email | — | Same API and domain as your campaigns |
Structural comparison, not a feature checklist — GMass evolves like any product; check their site for specifics.
An honest fork
Choose GMass if…
- You live in Gmail and want the compose window, not a dashboard
- Your volumes fit comfortably inside Gmail's daily limits
- Sheets-driven personal outreach is the whole job
Choose SendHustle if…
- You're brushing against Gmail's sending limits, or already got throttled
- You want your domain's reputation to be an asset you own, not a risk on your personal address
- You need transactional email or an API alongside campaigns
- A team sends together and per-seat pricing stings
- You're in India and want ₹ pricing with UPI
Coming from Gmail-based sending?
Start with our guides: mail merge in Gmail, the cold-email deliverability guide and follow-ups that stop on reply.
Common questions
What is the main difference between SendHustle and GMass?+
GMass is a Chrome extension that works inside Gmail and sends through your own Gmail account, so your volume is bounded by Google's sending limits and your Gmail address carries the reputation risk. SendHustle is a web app that sends from a domain you verify (DKIM and SPF), with volume set by your plan rather than by Gmail.
Can I move from Gmail-based sending without losing deliverability?+
Yes — usually you gain. You verify your own domain with guided DNS records, warm up gradually, and the reputation accrues to a domain you own instead of a personal Gmail address. Open and click tracking, suppression lists and one-click unsubscribe are built in.
Does SendHustle have follow-up sequences like GMass?+
Yes — follow-up sequences up to 8 stages that stop automatically when someone replies, plus an automations canvas triggered on opens, clicks or replies, and A/B testing with an automatic winner.
Is there a free plan?+
Yes. Free includes 300 emails a month, 500 contacts and one verified sending domain — no card required. Paid plans are billed in ₹ for India (UPI or card) and USD elsewhere.
Send from your own domain instead.
Free plan, no card. Verify your domain, send your first campaign in minutes.
Start free