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LobbyStack vs TellsU

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

LobbyStack compared with TellsU
DetailLobbyStack logo LobbyStackTellsU logo TellsU
What it doesAI receptionist software that answers calls, books appointments, and transfers urgent calls to your team Feedback form for installed software with version and environment data
StageNot given Not given
FoundedNot given Not given
Based inNot given GB
Pricing modelFreemium Freemium
PricingFree: 30 voice minutes for 14 days. Starter: $30/month or $288/year with 150 voice minutes, then $0.20/min overage. Pro: $100/month or $960/year with 500 voice minutes, then $0.18/min overage. Enterprise: Custom pricing. Transfer attempts and SMS alerts cost $0.02 each for overages. Free: $0, 1 app, 50 submissions per month. Paid: $9 per month or $90 per year (two months free).
Key features
  • 24/7 call answering in 70+ languages
  • Appointment booking and calendar integration with Google Calendar, Cal.com, and Calendly
  • Call transfer to team members based on rules
  • Call summaries and transcripts
  • Email and SMS notifications for messages
  • Knowledge base from website and document import
  • Lead qualification and intake
  • Customizable AI behavior and business rules
  • Spam filtering and calls under 10 seconds excluded
  • Open source code available on GitHub under MIT License
  • Embed widget or link for feedback collection
  • Automatically captures app version and environment data
  • Inbox with filters and version overview
  • Email forwarding
  • Customizable feedback form wording and types
  • Custom brand color on hosted page
  • CSV export and data deletion
  • Slack, Discord and webhook forwarding (paid)
  • Custom environment values and screen headings (paid)
  • Company logo on hosted page without badge (paid)
What makes it different
  • Open source with self-hosting option for data control
  • Natural conversation handling without rigid phone trees
  • Books appointments while caller is on the line
  • Transparent usage-based pricing with no spam call charges
  • Automatic version and environment capture with feedback
  • Purpose-built for extensions, plugins and installed apps
  • Free plan with no time limit or card required
  • Feedback never lost even when over free limit
  • Feedback retained for up to 12 months
Community votes00
DR (Domain Rating by Ahrefs)6 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)260
Referring domains (Majestic)320

5 details filled in for both companies.

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