Ruby vs Smith.ai: Pricing, Features & AI Alternative (2026)

Ruby Receptionists and Smith.ai are two of the most well-known answering services. Both promise to handle your calls professionally — but they take very different approaches and charge very different prices.

If you are comparing the two, this guide breaks down what each service actually delivers, what it costs, and where a newer category — AI-powered answering — fits in.

Ruby Receptionists: Human-First, Premium Pricing

Ruby (formerly Ruby Receptionists) uses live, US-based receptionists to answer calls. Their team handles greetings, message-taking, call transfers, and basic intake.

What Ruby does well:

Ruby's limitations:

Ruby pricing breakdown:

| Plan | Minutes | Monthly Cost | Per-Minute Overage |

|------|---------|--------------|-------------------|

| Ruby 50 | 50 min | ~$235 | $5.90/min |

| Ruby 100 | 100 min | ~$375 | $5.90/min |

| Ruby 200 | 200 min | ~$680 | $5.90/min |

| Ruby 500 | 500 min | ~$1,640 | $5.90/min |

For a service business handling 300 calls per month, Ruby can cost $800-$1,500+ depending on call length.

Smith.ai: Virtual Receptionists With AI Assist

Smith.ai combines human receptionists with AI-powered call handling. Their agents answer calls, qualify leads, book appointments, and even handle outbound calls.

What Smith.ai does well:

Smith.ai limitations:

Smith.ai pricing breakdown:

| Plan | Calls | Monthly Cost | Per-Call Overage |

|------|-------|--------------|-----------------|

| Starter | 30 calls | ~$292.50 | $9.75/call |

| Basic | 60 calls | ~$532.50 | $8.50/call |

| Pro | 120 calls | ~$975 | $7.50/call |

| Custom | 300+ calls | Quoted | Varies |

For a service business handling 200 calls per month, Smith.ai typically costs $1,200-$1,800.

Ruby vs Smith.ai: Head-to-Head Comparison

| Feature | Ruby | Smith.ai |

|---------|------|----------|

| Receptionist type | Human only | Human + AI assist |

| 24/7 availability | Business hours (after-hours extra) | Available on higher plans |

| Appointment booking | No (message-taking only) | Yes (via Calendly, etc.) |

| Lead qualification | Basic | Yes, with custom intake |

| Pricing model | Per minute (~$235/50 min) | Per call (~$292.50/30 calls) |

| 200-call monthly cost | $800-$1,500+ | $1,200-$1,800 |

| Industry specialization | General | General |

| Spanish support | Yes | Yes (add-on) |

| CRM integrations | Limited | Extensive |

| Outbound calling | No | Yes |

Bottom line: Smith.ai is more feature-rich than Ruby, with appointment booking and lead qualification built in. Ruby is simpler and works well for basic call answering. Both are expensive for service businesses that handle high call volumes.

The Third Option: AI Answering Services

Both Ruby and Smith.ai rely on human receptionists — which is why they charge premium per-minute or per-call rates. A newer category of answering service uses AI to handle calls directly, with no human operators.

[AI answering services](/guides/ai-phone-answering) use voice AI to answer calls, ask qualifying questions, book appointments, and send notifications — all without per-minute or per-call charges.

How AI answering stacks up:

| Feature | Ruby | Smith.ai | AI Answering (Callbook) |

|---------|------|----------|------------------------|

| Availability | Business hours | 24/7 (higher plans) | 24/7 always |

| Pricing | $235-$1,640/mo | $292-$975+/mo | $79/mo flat |

| Per-call/minute fees | $5.90/min overage | $7.50-$9.75/call | None |

| Appointment booking | No | Via Calendly | Direct calendar sync |

| Industry specialization | General | General | Built for service trades |

| Emergency detection | Script-dependent | Script-dependent | Automatic |

| Call recordings | Yes | Yes | Yes |

| Setup time | Days | Days | 5 minutes |

Why service businesses are switching to AI:

1. Flat pricing — No surprise overages. Whether you get 50 calls or 500 calls, the price stays the same.

2. True 24/7 — AI does not need shifts, breaks, or holiday coverage. Every call is answered instantly, including nights, weekends, and holidays.

3. Industry-specific intake — Instead of generic message-taking, AI trained for plumbing asks about leak location and water heater age. AI trained for HVAC asks about system type and whether it is heating or cooling. This means better lead qualification from the first call.

4. Instant booking — Appointments go directly into your calendar or ServiceTitan, Jobber, or Housecall Pro. No telephone tag, no missed follow-ups.

Which Service Is Right for You?

Choose Ruby if:

Choose Smith.ai if:

Choose AI answering if:

Further Reading