Built for PLG and sales-assist SaaS · AI SDR + Nudge

AI SDR for SaaS that calls every trial signup in minutes

A prospect starts your free trial at 8:40 pm. At 8:43 the AI SDR calls, asks what they're trying to get done, and books a demo with the right AE. The trial that would have gone silent is now a pipeline record with context attached.

No contracts · Billed per minute · Reply within one working day
AllMajor languages
24/7Always on
GRX10

Converse AI / Calls

Signup timeline · Jonas Weber
LiveSearch⌘K
Trial signup09 Jul · 20:40
Self-serve signup · team plan trial · role: Head of Operations
AI SDR call placed09 Jul · 20:43
Three minutes after signup · answered · language: German
Qualified on call09 Jul · 20:46
Use case captured · team size confirmed · evaluation timeline set
Demo booked09 Jul · 20:47
Thursday · 15:00 with the right AE · invite and summary sent
AI Call Detailscompleted
Phone
+49 30 ••• 4127
Duration
03:10
Language
German
Disposition
Demo booked
The speed-to-lead problem

Call trial signups within 5 minutes

A B2B trial gets evaluated the evening it starts, usually alongside two competitors. The Lead Response Management study by MIT and InsideSales.com puts qualification odds 21x higher when someone calls within 5 minutes rather than 30. A later audit of 2,241 companies, published in Harvard Business Review, found that firms which responded within an hour were nearly seven times more likely to qualify the lead. Your SDRs work business hours; your signups don't. The AI calls in minutes, asks what the prospect is trying to get done, and books the demo while your product is still open in their browser.

GRX10

Converse AI / Reports

Qualification odds by response time
MIT / InsideSales studySearch⌘K
Called within 5 minutes21x
Voice AI: minutes after signup
Called within 30 minutes1x
Never called at all<1x
PLG norm: an email drip
Workloads

SaaS calls the AI SDR handles: demos, activation, renewals

Signup-to-demo calls

Every trial signup called in minutes. The AI SDR qualifies use case, team size and timeline, books hot signups straight onto an AE calendar and logs everything to your CRM, transcript included.

Call flow: greet by first name → 'what are you trying to get done?' → team size and stack → book the demo or route to self-serve → recap by email and WhatsApp.

Activation nudges

Trial silent on day three? Nudge triggers a call or message tied to what they haven't done yet ('you imported data but never invited your team') and offers help before the trial decays into a churned email address.

Expansion and renewal follow-up

Usage crossed a plan limit? A champion went quiet before renewal? The AI calls, captures intent and objections, and hands your account team a transcript instead of a guess.

Triggers on product events via webhook CRM sync on every disposition Human handoff with full context
The language advantage

Trial calls in the prospect's language

Your signups come from everywhere; your SDR team speaks two languages. The agent detects the prospect's language on the first greeting and stays in it, switching mid-sentence when the caller does, so a signup from any market gets the same three-minute callback.

GRX10

Converse AI / Live calls

Live call · Jonas Weber
In progressJoinSearch⌘K
Jonas WeberAgent: Loopdesk · German → English00:43
AI Agent · German

Guten Abend, spreche ich mit Jonas? Sie haben vor einer Minute eine Testphase für Ihr Team gestartet.

Caller

Ja. Let's do English, my team is international.

AI Agent · English

Perfect. What are you hoping to get working first: the data import, or the team workspace?

language detected: Germanmid-sentence switch: EnglishAll major languages
The playbook

AI SDR for product-led growth: a call for every trial

This is our newest playbook, built on the same engine already running production deployments across six other industries.

  • Signup-to-call in minutes, not the next business day
  • Every trial signup gets a touch
  • Handoff with context: a transcript on every routed lead
  • Voice and WhatsApp, orchestrated by Nudge

"Most free trials expire without one human touch. Signup-to-demo calls, activation nudges and expansion follow-up for PLG funnels."

The GRX10 SaaS playbook
The full loop

From trial signup to renewal in four steps

The signup becomes a MicroCRM record (Capture). The AI SDR calls and qualifies (Converse). Nudge runs activation, expansion and renewal cadences (Close). The same record compounds through upsells, renewals and referrals (Retain).

FAQ

Questions SaaS teams ask about an AI SDR

Which CRMs and product-analytics tools does this work with?
Any tool that can hit a webhook: HubSpot, Salesforce, Pipedrive or MicroCRM on the CRM side, and Segment-style events or your own backend for product triggers. Every call disposition syncs back with a transcript.
What does it cost?
One per-minute platform rate plus telco at carrier cost, billed per minute and rounded up to the next full minute. A typical signup qualification call runs about three minutes. See pricing.
Will prospects know it is an AI?
The agent identifies itself as an AI whenever asked. Most prospects stay on the line: first-word response is under 700 ms and the voice rates human-natural.
Won't calling trial users feel pushy?
The call asks one question (what are you trying to get done?) and offers help. Activation nudges trigger on product events rather than a fixed drip, and every touch respects channel preferences and opt-outs.
How fast can we go live?
Point a signup webhook at us, describe your product in one sentence, and take a test call the same day. Most teams are calling real signups inside a week.

Get your test signup called back in minutes

Run it for me

Book a demo

Put the AI SDR on it. Book a demo and we will call your own test signup back in minutes: qualified, booked and synced to your CRM.

Book a demo
I'll run it myself

Try the app yourself

Point a signup webhook at us, describe your product in one sentence, and take a test call the same day. Most teams are calling real signups inside a week.

Start free

Tell us where your trials leak. We'll call a test signup on your own number in minutes.

See also
Case study: FinTech SaaS →