Google Voice vs KaiCalls: Which Business Phone Number Is Right for You?
Google Voice gives you a business phone number for $10 per month. KaiCalls gives you a business phone number that answers itself for $69 per month flat. Google Voice is cheaper. KaiCalls captures the calls you miss. For a contractor, one missed EV charger install pays for KaiCalls for three years.
See Google Voice's published plans at voice.google.com and KaiCalls pricing at /pricing.
Feature Comparison
The honest answering gap.
| Feature | Google Voice | KaiCalls |
|---|---|---|
| Price | $10/month | $69/month flat |
| Phone number | ||
| You answer calls | You | Kai answers |
| 24/7 coverage | ||
| Books appointments | ||
| Takes messages | Voicemail | AI conversation + text |
| Lead capture to CRM | Webhook + Zapier | |
| Qualifies the caller | ||
| Transcripts + recordings | Basic voicemail transcription | Full transcripts + summaries |
| Works with your cell |
The $59 Question
KaiCalls costs $59 more per month than Google Voice. Here's what $59 buys you.
Google Voice — $10/mo
- You answer every call yourself
- Calls you miss go to voicemail
- No booking, no qualification, no CRM push
- Nights, weekends, holidays — silent
KaiCalls — $69/mo
- Kai answers 24/7 — every call, first ring
- Qualifies callers and books appointments live
- Texts you the lead details after every call
- 150 minutes included, overage $0.10–$0.15/min
Electrician math: one missed EV charger install is a $2,000–$2,500 job.
One saved job = 3 years of KaiCalls.
Choose Google Voice if…
- You just need a second phone number
- You are always available to answer
- Budget is the primary concern
- You already live in Google Workspace
Choose KaiCalls if…
- You need someone to answer your phone 24/7
- You are often busy (job sites, meetings, driving)
- You want every lead captured, not voicemailed
- Missing a call costs you a real job
Common Questions
Is Google Voice a good business phone number for contractors?
Google Voice works as a cheap second business phone number at $10 per month per user on Google Workspace plans. It is a good fit if you answer every call yourself and you mostly need a number you can publish on Google Business Profile. For contractors who are on job sites, under a truck, or in a ceiling with live wire, Google Voice just sends the call to voicemail — and the next contractor on the search results answers instead.
What is the difference between Google Voice and KaiCalls?
Google Voice is a phone number. KaiCalls is a phone number that answers itself. Google Voice starts at $10 per month and forwards calls to your cell or sends them to voicemail. KaiCalls starts at $69 per month and includes Kai — an AI receptionist that answers 24/7, qualifies the caller, books appointments on Google Calendar or Outlook, and texts you the lead details.
Can I use Google Voice and KaiCalls together?
Yes, but usually it is simpler to just use KaiCalls. If you already publish a Google Voice number, you can forward it to your KaiCalls number so Kai answers anything you miss. You get one predictable monthly bill from KaiCalls for the answering and keep Google Voice only if you specifically need the Gmail / Workspace integration.
How much does it cost to miss a call for a contractor?
The HubSpot State of Service report and Clio Legal Trends data both show that response speed is the single biggest driver of who wins a new job. For an electrician, one missed EV charger install ($2,000–$2,500) pays for about three years of KaiCalls at $69 per month. Google Voice saves you $59 per month but costs you the jobs you miss.
Does Google Voice book appointments?
No. Google Voice is a number with voicemail. It does not have an AI agent, it does not qualify leads, and it does not book calendar appointments. KaiCalls does all three on every call.
