The best GMass alternative
The best GMass alternative is Autocloz: a free-forever, AI-native CRM that runs cold email exactly like GMass — unlimited mailboxes on paid, warmup, inbox rotation and deliverability monitoring — and then adds calling, LinkedIn, SMS and WhatsApp on top, all on one lead timeline. Where GMass stops at email, Autocloz keeps the prospect's whole journey in one login. The CRM stays free for unlimited users, with no per-seat fee, so a bigger team never means a bigger bill.
Why teams look for a GMass alternative
GMass is great for simple Gmail mail-merges, but it's tied to Gmail and is email-only with no CRM or other channels. Autocloz is a full platform: multichannel sequences, a free CRM, deliverability tooling and compliance — beyond what a Gmail extension can do.
Outreach is spread across too many tools
GMass keeps you in email (email (gmail)). The moment a deal needs a call, a LinkedIn touch or a WhatsApp nudge, you're buying and wiring up another tool — and the prospect's history splinters across them.
There's no CRM under the outreach
With GMass the CRM is none — a second subscription and a sync to maintain. Autocloz includes a free-forever, AI-native CRM with contacts, companies, deals and a unified inbox, so every channel writes to one timeline automatically.
You still need a CRM, dialer and AI elsewhere
Even with GMass sending well, the pipeline, the calls and the AI replies live in other subscriptions you stitch together. Autocloz keeps deliverability discipline (warmup, DMARC/DKIM/SPF, placement tests, bounce auto-pause) and adds the CRM, dialer and bring-your-own-key AI in the same login.
GMass vs Autocloz at a glance
| Dimension | GMass | Autocloz |
|---|---|---|
| Channels | Email (Gmail) | Email, calling, LinkedIn, SMS & WhatsApp in one login |
| CRM / pipeline | None | Free-forever AI-native CRM |
| Deliverability + warmup | Basic | Warmup + DMARC/DKIM/SPF + placement tests |
| Mailboxes | Your Gmail | 50 free, unlimited on paid (Google/MS/SMTP) |
| Compliance gate | Not a focus | TCPA/DNC/quiet-hours across channels |
Comparison reflects Autocloz’s model versus the category norm for gmail mail-merge tool tools. See the full Autocloz vs GMass breakdown.
Where Autocloz pulls ahead
Deliverability that's built in, not bolted on
Keep the cold-email discipline you'd expect from GMass — automated warmup, inbox rotation, DMARC/DKIM/SPF setup, placement tests and bounce auto-pause — and run it from the same place your CRM and other channels live. Nothing to integrate, nothing to sync.
Free-forever CRM, no per-seat fee
The CRM core is free forever for unlimited users and 100,000 contacts — invite every rep, SDR and contractor without raising the bill. You only move to a paid plan to lift per-channel daily limits, mailboxes, contacts and verifications, so spend tracks volume, not headcount.
One unified inbox for every channel
Email, LinkedIn, SMS, WhatsApp and call notes federate into a single Unibox, so a rep works one queue instead of switching between apps. AI-assisted replies are available with your own model key — no per-credit metering.
A compliance gate on every send
TCPA, DNC, quiet hours and 10DLC/WhatsApp opt-in are enforced at the dispatch gate across all channels, so a sequence can't reach a number or contact it shouldn't. Compliance is structural, not a checkbox you remember to tick.
Who should switch from GMass — and who shouldn’t
An honest read. The best switch is the one that fits your motion, so here’s where Autocloz is a clear win — and where GMass or a specialist tool might still suit you better.
- Outbound sales teams that want email, calling, LinkedIn, SMS and WhatsApp on one timeline instead of stitching GMass to four other tools
- Teams tired of per-seat pricing — every plan includes unlimited users, so a growing team doesn't mean a growing bill
- Anyone who wants a real CRM under their outreach without paying for a second subscription
- Cold-email senders who also want a dialer, LinkedIn and a CRM in the same login
- Teams who only ever send cold email and never plan to add calling, LinkedIn or WhatsApp — a single-channel tool may feel simpler
How to switch from GMass
- 1
Import your contacts and deals
Export your contacts, companies and pipeline from GMass and bring them in by CSV or API. The free plan covers up to 100,000 contacts and unlimited users, so the whole team and book of business land in one workspace.
- 2
Connect your mailboxes and channels
Connect your mailboxes (Google, Microsoft or SMTP) — built-in warmup and DMARC/DKIM/SPF mean you can move sending over safely — then add your carrier for calling, plus LinkedIn, SMS and WhatsApp. Every channel now lives under one login.
- 3
Rebuild your sequences as multichannel
Recreate your best-performing GMass sequences in Autocloz and enrich them: drop in a call step, a LinkedIn touch or a WhatsApp follow-up where the old flow had only email. The compliance gate (TCPA, DNC, quiet hours, opt-in) checks every send for you.
- 4
Go live and watch one timeline
Enroll your leads and switch sending over. From here every email, call, LinkedIn message, SMS and WhatsApp writes to one lead timeline and federates into a single inbox — so the whole team sees the full story per prospect, with nothing left behind in GMass.
Other GMass alternatives to consider
Free-forever CRM with all five channels, deliverability and a dialer built in. Unlimited users, no per-seat fee.
Start freeSmartlead is a popular cold-email tool — unlimited mailboxes, warmup and rotation.
See alternativeInstantly is a cold-email sender known for its warmup network and lead database.
See alternativelemlist pioneered personalized cold email and added LinkedIn + a lead database.
See alternativeFrequently asked
What is the best free alternative to GMass?
Autocloz is the strongest free alternative for outbound teams: a free-forever, AI-native CRM with email, calling, LinkedIn, SMS and WhatsApp built into one login. Unlike most GMass alternatives, the core CRM stays free for unlimited users and 100,000 contacts — you only pay to raise per-channel daily limits.
Is Autocloz cheaper than GMass?
For most teams, yes. Autocloz charges no per-seat fee, so adding users never raises the bill, and the CRM is free forever. Calling uses carrier pass-through (your own Telnyx, DIDLogic or FreJun rates, with no per-minute markup), so you scale on volume instead of seats or bundled minutes.
How do I migrate from GMass to Autocloz?
Import your contacts, companies and deals by CSV or API, connect your mailboxes (Google, Microsoft or SMTP) and carrier, and rebuild your sequences as multichannel. You keep every channel — email, calling, LinkedIn, SMS and WhatsApp — on one lead timeline, and built-in warmup means you can move sending over without rebuilding your stack.
Does Autocloz do everything GMass does?
For cold email, yes — Autocloz matches the essentials GMass is known for: unlimited mailboxes on paid plans, automated warmup, inbox rotation, deliverability monitoring and bounce auto-pause. It then goes further with calling, LinkedIn, SMS, WhatsApp and a built-in CRM. The one thing it doesn't try to be is a bundled contact database — you bring data by CSV, API or an Apify actor.
Is there a contract or per-seat fee?
No. Every Autocloz plan includes unlimited users with no per-seat fee, and the CRM is free forever — you can start without a card and invite the whole team. Paid plans simply raise per-channel daily limits, mailboxes, contacts and verifications, and you can change or cancel any time.
How long does it take to switch from GMass?
Most teams are sending the same day. Importing contacts and connecting a mailbox takes minutes; rebuilding your best sequences as multichannel is the bulk of the work. Built-in warmup and deliverability tooling mean you can ramp sending safely rather than cutting over cold.
A free-forever alternative to GMass
All five channels + a free-forever CRM, unlimited users. Most teams send their first sequence the same day.