Which Ulio AI Receptionist Alternative Is Best?

Sera is my best Ulio alternative for a local business owner who wants to set it up without a sales call. Sera starts at $49/mo, while Dialzara has the lowest listed starting price in this comparison at $29/mo.

I could not verify a published Ulio price on October 20, 2026, so ask for price, included minutes, and cancellation terms in writing. At Twig, we build Sera, Twig’s AI front desk. Sera is an AI receptionist: she answers every call, text and web chat 24/7, qualifies the caller, and books them with your team.

Owners need facts that a social post may leave out. Check the monthly price, setup time, booking, call transfers, and what happens when the AI cannot answer. If you are still asking “what is an AI receptionist,” start with our plain-English guide to what an AI front desk is.

Last verified: October 2026.

I compared only facts I could verify. Those facts were starting price, free trial, setup, booking, transfers, where customers can reach the AI, and stated limits. I did not score voice quality because I did not run the same live test on every product.

TL;DR: If Ulio caught your eye from a video, social post, or Reddit thread, do not buy on the demo alone. Compare price, included minutes, booking, transfers to a person, and transcripts. My picks are Sera for setup without a sales call, Dialzara for the lowest listed starting phone price, and Dapta for teams building several AI assistants.

Here is the comparison I would use before booking demos.

Option	My pick for	Published starting price	What to verify
Ulio AI Receptionist	Buyers who already like the demo	Not verified	Price, minutes, transfers, cancellation
Sera by Twig	Setup without a sales call	$49/mo	Booking and live transfers start on Growth
Dialzara	Lowest listed starting phone price here	$29/mo	Included minutes and overages
Dapta	Building several AI assistants	$99/mo	How credits affect the bill
Retell AI	Teams with developers	Not verified here	Who builds and maintains it
Smith.ai	AI plus human receptionists	Not verified here	When human staff step in

Dialzara’s numbers come from Dialzara’s pricing page. Dapta’s numbers come from Dapta’s pricing page. The short Retell AI and Smith.ai notes come from a published review of AI answering services, not their own pricing pages, so treat them as screening notes.

Ulio AI Receptionist: What Can You Verify?

Ulio may be worth testing if you liked its demo, but ask for the full price and terms before buying. A polished voice is not enough. You need to know what happens on busy days, after hours, urgent calls, and calls the AI should not answer.

Best for: a business owner who has already seen Ulio’s demo and wants to test it against real daily calls.

Pricing: I could not verify a published Ulio price on October 20, 2026. If a price is given on a call, ask for it in writing.

Limits to check:

• Does the plan include a business phone number, or do you forward your number?
• Can it book appointments, or only take messages?
• Can it send urgent calls to a person?
• Does it send a full transcript after each call?
• What happens when two callers phone at the same time?
• Are there setup fees, overage fees, or long contracts?

Here is the exact test I would run before paying:

Test call	What to say	Pass signal
New customer	“I need an appointment tomorrow after 3.”	Books or takes the right details
Price shopper	“How much is your cheapest option?”	Answers only from your rules
Urgent call	“Water is coming through the ceiling.”	Sends the call to a person
Bad fit	“Can you do a job 90 miles away?”	Declines or asks a person
Angry caller	“Nobody called me back yesterday.”	Stays calm and alerts the team

Sera by Twig: Is It the Best Ulio Alternative?

Sera is my pick for a local business that wants an AI receptionist app it can test without a sales call. Sera handles phone, text, web chat, email, and WhatsApp. It remembers the conversation when a customer switches between them.

Most businesses can set up Sera in under 30 minutes by forwarding the phone line or adding web chat.

Best for: service businesses that miss calls during jobs, lunch, after hours, or busy front-desk stretches.

Pricing: Sera pricing starts at $49/mo on Starter. Every plan starts with a 15-day free trial, voice included, and no credit card required.

What Starter is good for: testing whether AI can answer calls, collect useful details, and give your team transcripts.

What Growth adds: appointment booking, missed-call text-back, live transfers to a person, and multi-language conversations are included on Growth at $499/mo and above.

Where Sera fits well:

• A roofer wants after-hours callers answered before they call the next contractor.
• A real estate office wants every inquiry logged with a transcript.
• A law office wants simple new-client calls captured, while staff handles legal advice.
• A home service company wants missed calls and web chat in one place.

Where Sera does not fit:

• Sera is not HIPAA compliant and Twig does not sign business associate agreements.
• Sera does not bind coverage, quote premiums, give coverage advice, or file claims with carriers.
• Sera has no direct integration with agency management systems like EZLynx, HawkSoft, Applied Epic, AMS360, or QQCatalyst.
• Sera logs conversations with full transcripts, but you should not assume call audio is stored.
• Licensed, medical, legal, or high-risk questions should go to a person.

If you want to hear Sera before reading more, call the live demo line at (650) 795-7838 or start from Sera’s home page.

Dialzara: When Is It the Better Pick?

Dialzara may be the better pick when your main buying rule is a low listed phone plan and you can watch minutes closely. Dialzara publishes a $29/mo Business Lite plan with 60 included minutes and paid overages, so the base price is clear before a sales call.

Best for: a small local business that mainly wants phone coverage and wants a listed starting price.

Pricing: Dialzara’s pricing page lists Business Lite at $29/mo with 60 minutes and $0.48/min overage. Business Pro is $99/mo with 220 minutes and $0.45/min overage. Business Plus is $199/mo with 500 minutes. Business Elite is $349/mo with 1,000 minutes.

Useful published details:

• All inbound plans list call recordings and call summaries.
• All inbound plans list blind transfers.
• Warm transfers start on Business Pro.
• English and Spanish support starts on Business Pro.
• Google and Outlook calendar sync start on Business Pro.

Limits to watch: minute buckets matter. A cheap plan can stop being cheap if your average call is long or if you get a rush of calls during busy season.

Dapta: When Is It Worth Considering?

Dapta may fit a team that wants a tool for building several AI assistants, not just a phone receptionist. Dapta’s pricing uses credits, agents, and flows, so ask how calls, messages, contacts, and setup help affect the monthly bill before you buy.

Best for: a team that wants to build several AI assistants and has time to map how each one will work.

Pricing: Dapta’s pricing page lists Pro at $99/mo, Scale Up at $499/mo, Prime at $1,499/mo, and Custom as talk-to-sales. The Pro plan lists 100k credits, unlimited agents, unlimited flows, 5 users, and 5 workspaces.

Useful published details: Dapta’s own review says its service can answer calls, book appointments, capture leads, take payments, and send urgent calls to a person. It also says setup is no-code and can go live in days.

Limits to watch: credits can be harder to estimate than a simple phone plan. Before buying, write down your expected monthly call minutes, messages, and contacts. Then ask Dapta which plan that usage points to and what happens if you go over.

Retell AI: Who Should Put It on the List?

Retell AI may fit a team with developers who can build and maintain how calls are answered. A published review lists Retell AI as “whatever your developers build,” and says setup needs developers, which is different from buying a ready-to-use receptionist.

Best for: teams that want to design their own voice AI and have technical help to maintain it.

Pricing: I did not verify Retell AI pricing from an official pricing page for this comparison.

Limits to watch:

• Who will build the first working call setup?
• Who will update it when your services or hours change?
• Who checks whether urgent calls reach the right person?
• Who fixes it if callers get stuck?

My take: Retell AI can make sense if voice AI is part of your product or if you have developer help. It is not the first place I would send an owner who wants to stop missing calls this week.

Smith.ai: When Does AI Plus Humans Help?

Smith.ai may fit a business that wants AI plus human receptionists. A published review describes Smith.ai as a service where AI answers routine calls and human staff can step in, which may help when some calls need judgment.

Best for: businesses that prefer a human-backed model and do not want every caller handled by AI alone.

Pricing: I did not verify Smith.ai pricing from an official pricing page for this comparison.

Limits to watch:

• Ask when a human steps in.
• Ask how that affects the bill.
• Ask whether humans are available during the hours you need.
• Ask how call notes are sent to your team.

My take: AI plus human help can be useful for sensitive calls. If your problem is mostly missed appointments, common questions, and after-hours calls, test a simpler AI receptionist app first.

Best Pick by Need: Which Should You Choose?

The best AI receptionist is the one that passes your real call test and has pricing you understand. Do not pick based on a polished demo alone. Pick based on your busiest Tuesday afternoon, your after-hours calls, and whether your team can use the transcript.

Here is my recommendation by need.

If you need	My pick	Why
Setup without a sales call	Sera	Most businesses can go live in under 30 minutes
Lowest listed starting phone price here	Dialzara	$29/mo plan is published
Phone, text, web chat, email, and WhatsApp	Sera	One conversation across all five
A tool for building several AI assistants	Dapta	Credits, agents, and flows model
Developer-built voice AI	Retell AI	Published review says setup needs developers
AI plus human receptionists	Smith.ai	Published review says human staff can step in
Ulio demo impressed you	Ulio	Ask for written terms first

Worked example: say your business gets 120 missed or after-hours calls a month, and each call averages 2 minutes. That is 240 minutes. In that case, compare the base price, included minutes, overage charges, and whether booking is included.

Use this script when you test any AI receptionist:

“Hi, I’m a new customer. I need an appointment after 4 this Thursday. I also want to know what happens if this is urgent. If you cannot answer, please have someone call me back at this number.”

That one call checks booking, urgency, caller details, and the AI’s limit. If the transcript is clear and your team knows what to do next, you are close.

What Should You Do Next?

Call two live demos, then run your own five-call test before you sign anything. Use a new customer call, an urgent call, a price question, an angry customer, and one question the AI should not answer.

If after-hours calls are the main pain, read our piece on after-hours appointment capture. If you want a rollout checklist, use our guide to deploying an AI front desk in the first 30 days.

If Sera is on your list, call (650) 795-7838 and try to stump her. Then compare the transcript to what your team would need on a real workday.