Autocalls $34, Rosie $49, Phonely $50, Goodcall $79, Slang.ai $399, Sameday AI $449. All published monthly, all read on the vendors' own pages in August 2026. That is a 13x spread for what buyers describe as the same job.
None of the six publishes how many calls the price covers. That is the number that decides whether $34 or $449 is the expensive one.
The prices, with what you can check
| Service | Entry | Free tier | Self-serve | Verified |
|---|---|---|---|---|
| Autocalls.ai | $34/mo | No | Yes | 2026-08-07 |
| Rosie | $49/mo | Yes | Yes | 2026-08-12 |
| Phonely | $50/mo | Yes | Yes | 2026-08-07 |
| Goodcall | $79/mo | Yes | Yes | 2026-08-12 |
| Slang.ai | $399/mo | No | Yes | 2026-08-12 |
| Sameday AI | $449/mo | No | Yes | 2026-08-12 |
All six are self-serve, which is unusual for this corner of the market. Across the 42 tools in the inbound and vertical voice categories, 33 publish no price at all and most require a call.
Every monthly price has a break-even minute count
A voice agent minute costs about $0.0465 at published list rates: recognition, a low-latency model, synthesis and US telephony, each priced from the vendor's own rate card. That is a floor, not a forecast.
Divide a monthly price by it and you get the volume at which the vendor stops making money on you:
| Service | Monthly | Break-even minutes | At 3 min/call |
|---|---|---|---|
| Autocalls.ai | $34 | ~731 | ~244 calls |
| Rosie | $49 | ~1,054 | ~351 calls |
| Goodcall | $79 | ~1,699 | ~566 calls |
| Slang.ai | $399 | ~8,580 | ~2,860 calls |
| Sameday AI | $449 | ~9,656 | ~3,219 calls |
Read that as a design constraint rather than an accusation. A $34 plan is priced for a business taking a few hundred calls a month. If you take two thousand, either the plan has a cap the page does not lead with, or you are the customer the pricing did not anticipate.
The comparison that actually decides it
Not against other software. Against a person. A part-time receptionist or a human answering service is the alternative these are displacing, and the arithmetic is the one every vendor page skips.
The honest version needs your own numbers: calls a month, how many are currently missed, and what a missed call is worth. Below roughly forty missed calls a month, most of these plans cost more than the revenue they recover, and the answer is that you do not need one yet.