Upfirst and callflo.aiboth answer a real estate line 24/7, both book to a calendar, both text. The visible difference is the meter: Upfirst counts calls, callflo.ai counts minutes. That changes the price more than the sticker does. Pricing below was read from Upfirst's public pricing page on September 16, 2026. Yes, we make one of these.
Key takeaways
- Upfirst starts at 24.95 dollars a month for 30 calls, or 20 dollars on annual billing. callflo.ai starts at 39 dollars a month on annual billing for 120 minutes.
- Per-call pricing favors short, frequent calls. Per-minute pricing favors long conversations. A seller call and a wrong number cost the same on Upfirst.
- callflo.ai collects payment during the call through Stripe. Payment collection is not a listed feature on Upfirst's plans.
- Only callflo.ai has a done-for-you tier. Upfirst is self-serve at every price.
The short version
Pick Upfirst if your line takes many short calls, you are comfortable configuring the agent yourself, and you never need to take a card by phone. Pick callflo.ai if your calls run long, you take deposits, application fees, or earnest money over the phone, or you want a team to build and run the agent for you. If you are not sure which line you have, count a week of calls and note how long they run before reading further.
Pricing, side by side
| Plan | Monthly | Annual, per month | Included | Overage |
|---|---|---|---|---|
| Upfirst Starter | $24.95 | $20 | 30 calls | $1.50 per call |
| Upfirst Premium | $59.95 | $48 | 90 calls | $1.00 per call |
| Upfirst Pro | $159.95 | $128 | 300 calls | $0.75 per call |
| Upfirst Scale | $299 | $240 | 600 calls | $0.70 per call |
| callflo.ai Starter | $49 | $39 | 120 minutes | $0.98 per minute |
| callflo.ai VIP | $997 | $697 | 1,000 minutes, run for you | $0.98 per minute |
Both are easy to try. Upfirst has a 14-day trial with no credit card. callflo.ai has a satisfaction guarantee on your first subscription: sign up, forward your line for a week, and cancel or ask for a refund if it did not earn its keep. Neither has a setup fee or a contract.
Calls versus minutes, worked
Take three real estate lines and price them on both meters.
| Line | Calls a month | Average length | Upfirst | callflo.ai |
|---|---|---|---|---|
| Solo agent, sign calls | 30 | 2 min (60 min total) | $20 to $24.95 on Starter | $39 on Starter |
| Brokerage front line | 100 | 3 min (300 min total) | $128 to $159.95 on Pro | About $215 on Starter plus overage |
| Investor seller line | 40 | 10 min (400 min total) | $48 to $59.95 on Premium | About $313 on Starter plus overage |
| Leasing line, high volume | 300 | 3 min (900 min total) | $128 to $159.95 on Pro | $697 on VIP, with a team running it |
Price it on your own line
That is 240 minutes a month. Monthly cost, overage included:
Upfirst priced on the cheapest plan for your call count at annual rates, overage included. callflo.ai priced on minutes at annual rates. The cheapest option is highlighted; VIP includes a team running the agent.
Read plainly: on self-serve minutes at moderate and high volume, Upfirst is cheaper, and on long investor calls it is much cheaper. callflo.ai's Starter is priced for a lighter line, and its overage rate is high. Where callflo.ai wins on price is the managed tier compared to what it replaces: a team building and running the agent at 697 dollars a month sits against human answering services at 810 dollars for 90 calls, not against Upfirst. The Smith.ai comparison works through that side, and the prices for outsourced receptionist services put Ruby, PATLive and the rest in one table.
Feature differences
| Feature | Upfirst | callflo.ai |
|---|---|---|
| Answers 24/7, books to calendar | Yes | Yes |
| Texts the caller during and after the call | Yes | Yes |
| Live transfer to your team | Yes | Yes |
| Takes payment by card on the call | Not listed | Yes, via Stripe |
| Done-for-you setup and ongoing tuning | No | Yes, on VIP |
| Outbound call and text campaigns | Not listed | Yes, on VIP |
| Trial | 14 days, no card | Satisfaction guarantee on the first subscription, cancel anytime |
Where Upfirst wins
- Cheapest entry point. 20 dollars a month on annual billing for 30 calls is the lowest-risk start on the market for a part-time agent.
- Long calls at self-serve prices. A 15-minute seller conversation is one call. On a minutes meter it is 15 minutes.
- Languages. Upfirst publishes answering in more than 35 languages. If your callers regularly speak something other than English, check that list first.
- No-card trial. Two weeks without giving anyone a card number.
Where callflo.ai wins
- Money on the call. Application fees, deposits, earnest money, and invoices collected by card while the caller is on the line. No other AI answering service we compared publishes this. Details in the payments post.
- A team runs it. VIP includes setup, transcript review, tuning, and CRM integration by people, which is what an office with no one to configure software actually needs.
- Short calls on a busy line. Wrong numbers, vendors, and 40-second confirmations are seconds on a minutes meter and a full call on a per-call meter.
- Live in minutes, backed by a guarantee. Paste your website, hear it answer, forward your line. If the first subscription does not work out, cancel or ask for a refund.