PRIMARY-SOURCE COMPARISON
Ostra vs Dialzara
Dialzara and Ostra are the closest true comparison in this category: both are AI-native receptionists, both publish a price you can read without booking a call, and both bill on included minutes plus an overage rate. Dialzara is the cheaper entry point. This page sets out what each one actually includes.
How this was checked. Every Dialzara figure below was read from Dialzara’s own public pages on 31 August 2026, not from a review site or a third-party summary. Where we could not verify something, the row says Not verified rather than guessing. Prices change — check the source links before deciding.
Sources: dialzara.com/pricing · ostrablueprint.com pricing
| Ostra | Dialzara | |
|---|---|---|
| Entry price | $129/month (AI Receptionist) | From $29/month Dialzara is materially cheaper to start. |
| Published tiers | AI Receptionist $129/mo. Website $29/mo and AI Chat $39/mo are separate products. | $29 / $99 / $199 / $349 per month |
| Included usage | 200 callable minutes/month | Minute allowances per tier; 60 / 220 / 500 minutes on the $29 / $99 / $199 tiers as published 26 Aug 2026 |
| Overage | $0.25 per additional minute | Per-minute rates published between $0.35 and $0.48 depending on tier Ostra's overage rate is lower; Dialzara's entry allowance is smaller. |
| Phone number | One real local US number included | Not verified |
| Free trial | No trial. Free website preview before paying. | Free trial offered Dialzara offers a trial; Ostra does not. |
| Contract | No annual contract | No contract; cancel anytime |
| Appointment behaviour | Records appointment requests for the business to confirm. Does not promise confirmed calendar booking. | Not verified |
| Website included | Same system can build and host the website; sold separately from $29/mo | Consumes an existing website to build its knowledge base; does not build one |
| Outbound voice / SMS | Not offered | Outbound voice, SMS and website chat available as separately priced add-ons Dialzara offers channels Ostra does not. |
| Reseller / white label | Not verified | None found on the site as at 26 Aug 2026 |
Which one suits you
Choose Dialzara if: you want the lowest entry price, you already have a website you are happy with, and you may want outbound voice or SMS from the same vendor later.
Choose Ostra if: you want the phone answered and the website that generates the calls handled by one system, or you have no website at all and do not want to buy two products to fix one problem.
How we read this — Ostra’s interpretation, not verified fact
- On price alone Dialzara wins the entry comparison and we are not going to pretend otherwise — $29 against $129 is a real difference, and for a business that already has a website it may be the whole decision.
- The comparison changes if you do not have a website, or if the website you have is not producing calls. Dialzara consumes a website; Ostra can build the one that generates the call it then answers. That is a different purchase, not a better one.
- Compare the allowance and the overage together rather than the headline. 200 minutes at $0.25 overage behaves differently from 60 minutes at a higher per-minute rate once you are actually busy.
What Ostra does not do
- Ostra records appointment requests for the business to confirm. It does not promise confirmed calendar booking, and any comparison that implies otherwise is wrong.
- Ostra is not the cheapest AI receptionist. Dialzara starts at $29/month.
- Ostra does not offer outbound voice or SMS campaigns.
- Ostra offers no free trial of the receptionist — only a free website preview before payment.