Both Are Real AI SDRs. Only One Keeps Going When Email Is Ignored.
You've found two products that genuinely write, reply and book on their own — rarer than the category's noise suggests. The difference is what happens to the lead who never answers email or LinkedIn. Below: that lead, in both.
Type your website. See what Sellinger would write to one of your buyers — no demo call required — before you sign up.
No website yet?
Daniel Reyes · VP Ops · ignores email and LinkedIn
Same lead, both AI SDRs
AiSDR (2 channels)
sendingSellinger (7 channels)
still workingDaniel wasn't uninterested. He was unreachable on two channels.
Unit4
DC Thomson
Rocket.Chat
Pendo
GetAccept
Retention.com
Adoric
Squirro
DesignRush
Vettio
Sales Automation Systems
GetGlued
PeopleForce
Vantage Circle
TalentSight
SadaPay
Eureeca
PureVPN
Last9
Vivoo
Disrupt
Demand.io
Fluence GroupUnit4DC ThomsonRocket.ChatPendoGetAcceptRetention.comAdoricSquirroDesignRushVettioSales Automation SystemsGetGluedPeopleForceVantage CircleTalentSightSadaPayEureecaPureVPNLast9VivooDisruptDemand.ioFluence GroupAiSDR is a credible AI SDR on email and LinkedIn — the two most crowded channels in B2B — metered by researched contacts and sold demo-first. Sellinger works those two plus the five where people still answer — WhatsApp, voice, SMS, Instagram and your own website — answers what comes in as well as what goes out, lets conversations run uncapped, and proves itself on your leads for 30 days before asking for a card.
Side by Side, Verified
Where they overlap, where they don't.
| Feature | Sellinger | AiSDR |
|---|---|---|
| AI writes, replies, and books autonomously | ||
| Channels | LinkedIn, Email, WhatsApp, Voice, Chat, SMS, Instagram | Email + LinkedIn |
| Voice calls | AI caller holds real conversations | |
| Website live chat + visitor pixel | ||
| Inbound messages & existing customers | Answered and looked after by the agent | Outbound only |
| Pricing model | Per channel agent, conversations uncapped | Per researched contact (200–2,500/mo caps) |
| Entry price | From $19–39/mo per channel; bundles $249/mo | $250/mo (200 contacts) |
| Contract | Monthly, cancel anytime | Month-to-month Solo; quarterly on higher tiers |
| Try before buying | 30-day free trial, no credit card | Demo-first, no free trial |
| CRM sync | HubSpot & Salesforce + built-in agentic CRM | HubSpot & Salesforce native |
AiSDR details from aisdr.com, last verified August 20, 2026.
Skip the demo. See it on your own business.
Type your website. Sellinger reads it, finds your buyers and writes the first message — live, right in front of you, before you create an account or sit through a pitch.
No website yet?
One Meters Contacts. The Other Lets Conversations Run.
Both verified August 20, 2026.
AiSDR
$250–$2,500/mo
- Solo $250 (200 contacts) · Explore $900 (800) · Scale $2,500 (2,500)
- Quarterly contracts on Explore/Scale; 20% off annual
- No free trial — demo first, then commit
Still true with AiSDR…
- A contact quota that runs whether contacts convert or not
- Two channels — leads who don't answer email or LinkedIn go nowhere
- No voice calls, no website chat, no WhatsApp
- Committing after a demo instead of after results
Sellinger
$249/mo Outbound bundle
- Per channel agent, conversations uncapped; channels from $19–39/mo
- Monthly billing, cancel anytime; lead research $0.01/lookup
- 30-day free trial on your real leads, no credit card
With Sellinger…
- Selling on 7 channels — voice, WhatsApp, chat, and SMS included
- Conversations uncapped — no contact quota metering the month
- 30 days on your own leads, free, before a dollar changes hands
- Inbound answered 24/7 — chat, calls, and DMs become pipeline
Run the Whole Thing From One Conversation
AiSDR gives you a strategist and a demo. Mr. Sellinger gives you a conversation you can start right now: tell him who you sell to, he sets the agents up on all seven channels, shows you the first messages, and briefs you every morning.
Mr.Sellinger
Online • 100+ tools available
Set up by talking
“Ops leaders at mid-size logistics firms; email first, WhatsApp when they go quiet, call anyone who opens twice” is the whole setup. He drafts the persona and shows you the first message before anything sends.
Change anything mid-flight
“No calls before 10.” “Stop contacting Acme.” “Answer website chat in German too.” Every instruction lands on the live agents in seconds.
A briefing every morning
Who replied on which channel, what he answered, meetings booked overnight, the one lead that needs you — in the app, on WhatsApp, or on a call.
No Demo. Live in a Day.
Self-serve first: connect channels, point it at your business, and the agent is working your leads the same week.
Bring your leads
CSV import (up to 20k per file) or HubSpot / Salesforce sync. A segment is created automatically; suppression lists carry over.
It reads your business
Point it at your website and docs. It learns what you sell, who buys, and how you talk — the same read you saw above.
Approve the first messages
Review the first batch in the morning briefing. Fix the tone once; it remembers. Safe pacing on every channel from day one.
Show up to the meetings
It sends, answers every reply and every inbound within minutes, follows quiet leads across seven channels, and books into your calendar.
Bring your leads
CSV import (up to 20k per file) or HubSpot / Salesforce sync. A segment is created automatically; suppression lists carry over.
It reads your business
Point it at your website and docs. It learns what you sell, who buys, and how you talk — the same read you saw above.
Approve the first messages
Review the first batch in the morning briefing. Fix the tone once; it remembers. Safe pacing on every channel from day one.
Show up to the meetings
It sends, answers every reply and every inbound within minutes, follows quiet leads across seven channels, and books into your calendar.
Hear It From Teams Like Yours
Sales leaders share how Sellinger transformed their revenue operations.
What Our Customers Say
From startups to enterprises, teams are replacing their entire outbound stack with Sellinger.
“Sellinger replaced our entire SDR team and tripled our pipeline in 3 months.”
Garrett Noach
Founder
The honest part
We know. One more tool is the last thing you want.
You came here to compare two AI SDRs, and switching while running a business is overwhelming — we hear it on every call. So we built this one to need almost nothing from you: no demo to sit through, no onboarding programme, no training. You type your website, bring your leads, and say yes to the first messages. That's the whole switch.
And here is what we see from the inside, across 500+ companies: the firms that waited on AI didn't lose to better products. They lost the reply — to whoever answered first, at 23:40, in the buyer's language, with the meeting link already in the message. The gap isn't the tool. It's the hour.
Everything you'll actually do
- 1
Type your website
Right here, on this page. Fable reads it and shows you what it understood — you saw it above.
- 2
Bring your leads and connect channels
CSV or CRM sync; email, LinkedIn, WhatsApp in a click each.
- 3
Say yes to the first messages
Tomorrow morning, in your briefing. Fix the tone once; it remembers.
Then it runs. About five minutes of your attention a day — on seven channels, both directions, with no contact quota counting down.
See What AI Can Do for You TodayFrequently Asked Questions
Straight answers — no dodging the hard ones.
See What AI Can Do for You. Today.
Type your website above and watch Sellinger read it, find your buyers and write the first message — no demo call required — before you create an account. Then run it on your real leads for 30 days, free, on seven channels, and compare calendars.
Live
Fable research on your site
7
Channels, both directions
30 days
Free, no card