Verdict
Upfirst is the product in this directory that answers the phone. Checked Oct 21, 2026, Starter is $24.95 a month for 30 calls, or $20 a month billed annually, with a 14-day trial and no ongoing free plan. It texts or emails a summary and can book the appointment. Calendly, last checked Oct 18, 2026, does not answer the call. It sends a link, and its AI pieces, Callie and Notetaker, are on the paid plans. Roof AI, also last checked Oct 18, is a website assistant sold to brokerages, and no public price was on the pages checked. Use Upfirst when the missed call itself has to be picked up. Use Calendly when a booking link is enough. Roof AI is a different surface: the brokerage website, not the cell phone.
What each product is
Upfirst is a general AI answering service. You keep your number and forward the calls you miss, the after-hours calls, or every call. It collects the details you train it to ask, sends a summary by text or email, and can transfer the call. Real estate is one of the businesses that can use it. The product is not a CRM.
Calendly is general scheduling software. A free plan covers one event type and one calendar. The vendor's AI pieces on the listing are Callie, which you can add to an email thread to find a time, and Notetaker, which joins a video meeting. That listing was last checked Oct 18, 2026. Roof AI puts a conversational assistant on a brokerage website. It answers property questions, qualifies intent, and books appointments. It is sold to brokerages, and a public price was not listed. That listing was also last checked Oct 18, 2026.
Price, as published
Upfirst, Oct 21, 2026: Starter is $24.95 a month for 30 calls, or $20 billed annually. Premium is $59.95 for 90 calls, or $48 annually. Pro is $159.95 for 300 calls, or $128 annually. Scale is $299 for 600 calls, or $240 annually. Extra calls step down from $1.50 to $0.70. Above 600 calls, the page offers a custom plan. An additional receptionist is $9.95 a month. The FAQ says there is no contract. The homepage says the trial is two weeks.
Calendly, as listed on Oct 18, 2026: a free plan covers basic scheduling. Teams is $16 per seat per month on yearly billing. Callie and Notetaker are on Standard and Teams, not on the free plan. Roof AI, same check date: sold to brokerages, with no public price on the pages checked.