Marlie.ai vs Answrr: The Hidden Cost of AI Phone Agents (2026)

Most reviews of AI answering services focus on "features." They tell you "Marlie sounds human" (which is true). But they fail to tell you how much it will actually cost you when a customer rambles for 15 minutes.

After analyzing pricing models and testing these tools with real-world scenarios, we found a critical difference that could cost—or save—you thousands.

The Showdown: Billing Models

1. The "Talkative Customer" Scenario

Let's say you run a plumbing business. A customer calls to explain a leak. They start talking about how the leak started last Tuesday, and how their cat hates the water, and how their cousin is also a plumber but he's in jail...

With Marlie.ai: The clock is ticking. That 12-minute ramble just cost you $3.00. If you get 10 of those a day, that's $900/month just in usage fees.

With Answrr/Upfirst: You pay per "Interaction" or a flat monthly subscription. The length of the call doesn't hurt you as much.

Winner: Answrr (for budget), Marlie (for quality)

2. The "Old Lady" Test (Latency)

We tested these AIs with a "confused elderly person" persona. We mumbled. We interrupted. We asked the same question twice.

Marlie.ai is terrifyingly good at this. It detects interruptions instantly. If you cut it off, it stops speaking immediately. It feels respectful and patient.

Answrr struggles here. It has a ~1.5 second "thinking" delay. This leads to that awkward dance where you both start talking at once. For an elderly client, this is confusing and frustrating.

3. The "Scam" Factor

Reddit users are increasingly paranoid about "AI Voice Scams." If your AI sounds too generic, people will hang up, thinking you are trying to steal their credit card.

Marlie's voices are highly customized and sound "local." You can even clone your own voice (though we don't recommend it—it's weird for customers).

Final Recommendation

Option A: The "Premium" Route (Marlie.ai)

Choose this if high ticket sales matter more than operational costs. One booked roofing job ($10,000) covers a year of Marlie fees. Don't cheap out on the first impression.

Option B: The "Volume" Route (Answrr/Upfirst)

Choose this if you get 50+ calls a day and many are low-value (e.g., "Are you open?"). You need a gatekeeper that doesn't charge you $0.25 every time someone asks for your address.