The short answer
Allo runs three plans: Starter at $18/user/mo, annual-only for one user; Business at $32 annual or $45 monthly; Ultra at $100 annual or $120 monthly. AI receptionist, booking, summaries, and transcripts come with every plan. Extra fees: $24 texting registration, pay-as-you-go international calling, 150/day SMS cap.
Key takeaways
- Starter is $18/user/mo billed annually for exactly one user, with AI receptionist and booking included.
- Business adds the power dialer and CRM sync at $32/user/mo annual or $45 monthly.
- Ultra at $100/user/mo annual replaces SDR and support workflows with named AI agents.
- Extra costs are limited: a $24 one-time texting registration, pay-as-you-go international calling, a 150/day SMS cap.
- If the problem is outbound volume rather than unanswered calls, per-outcome pricing beats extra seats.
Allo runs three per-user plans. Starter is $18 per user per month, billed annually, for exactly one user. Business is $32 per user per month billed annually, or $45 month to month. Ultra is $100 annual, $120 monthly. Every paid plan includes AI summaries, transcripts, the receptionist, and the appointment booker. The extra costs are short: international calling is pay as you go, US texting needs a $24 one-time carrier registration, and outbound SMS caps at 150 messages per day on every plan. The 7-day trial starts in the app with no sales call.
One disambiguation that matters before any of this: this is Allo the phone system, at withallo.com/pricing. Most of page one for this search belongs to ALLO Communications, a Nebraska fiber internet provider that shares nothing but the name. Every price below comes from the phone company's own pricing page, fetched the day this article published.
Allo pricing plans at a glance#
| Plan | Annual billing (per user/mo) | Monthly billing (per user/mo) | Best for |
|---|---|---|---|
| Starter | $18 | Not offered | One person losing calls to voicemail |
| Business | $32 | $45 | Teams that live in the CRM and dial all day |
| Ultra | $100 | $120 | Replacing SDR and support workflows with AI agents |
Starter is the plan to buy for most readers of this page. Business exists for the CRM sync and the power dialer; pay the upgrade when those two pay rent, not before. Ultra is a different budget conversation entirely, which we get to below.
Starter: $18 a month, one user, yearly commitment#
Starter sells to exactly one person. One user, one business number, unlimited national calling, and the AI stack that most phone systems bill as add-ons: receptionist, appointment booking, call summaries, and transcripts are all included. The AI receptionist answers the calls you can't, and the appointment booker puts them on a calendar. One page quirk worth knowing before you buy: Allo's pricing cards call this tier Solo while the page's FAQ calls it Starter. Same plan, one user.
Two limits define the plan. Billing is annual only, so the real outlay is $216 up front, and the 30-day money-back guarantee applies to Starter but not to the higher tiers. For a one-person shop that's the cheapest credible phone with real answering AI on the market: the only lower published seat on our board is Quo's $15, and Quo's answering agent caps at 10 free calls a month.
Business: $32 a month, where the CRM sync lives#
Business runs $32 per user per month on annual billing, or $45 month to month. Annual knocks about 29% off, and Allo's own page claims the annual seat lands roughly 10% below Aircall's.
The features that matter here are the ones that turn the phone into a sales tool: a power dialer, a desktop app, and native CRM sync with HubSpot, Salesforce, Pipedrive, and Attio. AI call tags push into the CRM automatically, post-call actions fire without a human updating records, and a collaborative team inbox plus leaderboards make it a floor tool. There's even an MCP connector that pipes call data into Claude or ChatGPT, which no other phone system at this price ships.
Buy Business when the CRM sync and the dialer would save more than the seat premium costs. For a solo operator it buys nothing Starter doesn't already do.
Ultra: $100 a month, and the question changes#
Ultra is $100 per user per month billed annually, or $120 monthly. The tier is not a better phone. It's a stack of named AI agents: AI SDR, Customer Support Agent, Lead Qualifier, CRM Manager, Sales Coach, and Data Analyst, plus a custom agent builder, a custom AI voice for the IVR, custom dashboards, Slack support, a dedicated account manager, and custom onboarding with an SLA.
At $100 a seat the phone comparison stops. A five-seat Ultra account costs $6,000 a year, and the honest buying question is how many headcounts of SDR or support labor that replaces. Teams that don't have that labor to replace shouldn't buy it.
What costs extra, and what doesn't#
The surcharge list is genuinely short, which is rarer than it should be in this category.
- International calling is pay as you go on every plan, across roughly 192 destinations.
- US texting requires a $24 one-time 10DLC carrier registration.
- There's no separate charge for number porting, setup, or the AI features.
Rezora point of view
Outbound SMS caps at 150 messages per day on every plan, including Ultra. If texting is how your team follows up, that cap arrives fast.
What Allo doesn't charge: no setup fees, no contracts on Business and Ultra (Starter's annual-only term is the closest thing), free porting, and prorated seat changes when headcount moves.
How Allo compares to what you'd buy instead#
For a small team weighing the phone-system aisle, here's where Allo's entry point sits against the credible alternatives. Every figure links to the vendor's own page.
| Tool | Working entry price | Seat minimum | AI included | Better fit when |
|---|---|---|---|---|
| Allo | $18/user/mo annual | 1 | Receptionist, booking, summaries, transcripts | One-person shops that miss inbound calls |
| Quo | $15/user/mo annual | None | Sona, with 10 calls/mo free | Price purists wanting printed tiers |
| CloudTalk | €19/user/mo annual | 1 | Agent add-ons from $99/mo | Cross-border calling at volume |
| Smith.ai | Free for the first 25 calls/mo | n/a, priced per call | Human-plus-AI receptionist | Per-call pricing beats per-seat |
| Rezora IO | $289/mo + $0.20/conversational minute | None | The product itself | More leads than people to call them |
Allo's $18 starter seat is the second-cheapest published entry on that board and the cheapest with full answering AI included. Quo undercuts it by $3 but caps its agent at 10 calls a month before bundles. We run both comparisons in detail in the OpenPhone alternatives guide and the Dialpad alternatives guide.
Where Allo loses is scale. Everything is per seat, so a ten-person Business account runs $320 a month before international minutes, and the 150-messages-per-day SMS cap stays flat no matter how many seats you stack. Teams that outgrow the answering job and need outbound at volume hit the same ceiling Allo's own Ultra tier is trying to sell its way past.
The row that doesn't belong next to the others is the last one, and that's the point of the next section.
When a phone system is the wrong purchase#
Everything above assumes your problem is calls arriving and nobody answering. If your problem is the other direction (hundreds of leads in a database, nobody dialing them), buying seats changes nothing, because seats still need people.
That's the category Allo's own Ultra tier is reaching for with its AI SDR, at $100 a head. The dedicated version of it is Rezora IO: an AI voice agent that works outbound and inbound, calls new leads in seconds, qualifies intent on the call, and puts the appointment on your calendar. The edge is training over prompting: Rezora IO is among the only vendors that trains the models it hosts itself (supervised fine-tuning, then preference optimization) on real sales conversations, and that training is why the agent handles live objections instead of reciting a script at them.
The pricing model matches the job. One published plan at $289 per month plus $0.20 per conversational minute, month to month, with the meter running only while the agent is on a call. An agent that talks to leads ninety minutes a day adds about $18 a day on top of the base. Enterprise plans with custom-trained deployments are available. Compare that shape to stacking seats: three Business seats cost $96 a month before anyone picks up the phone, and the seats still don't dial your list.
Price the outcome, not the seat
Point Rezora IO at last quarter's leads and it works through them itself: every caller gets qualified, every yes lands on your calendar. Hear it run before you commit to another seat.
Book a demoFAQ#
How much does Allo cost per month?#
Three tiers: Starter at $18 per user per month billed annually for one user, Business at $32 annual or $45 monthly, Ultra at $100 annual or $120 monthly. AI receptionist, booking, summaries, and transcripts are included on every paid plan.
Does Allo have a free trial?#
Yes, 7 days, started inside the app with no sales call and no card conversation. Starter also carries a 30-day money-back guarantee; the higher tiers don't.
Can you pay Allo month to month?#
Business and Ultra, yes: $45 and $120 per seat respectively. Starter is annual billing only, which makes the true entry ticket $216 paid up front.
Is Allo pricing per user?#
Yes, per seat, with prorated changes as seats come and go. The exception is Starter, which is exactly one seat, on annual billing only.
What extra fees should I expect on Allo?#
Two: a $24 one-time 10DLC registration for US texting, and pay-as-you-go international calling across ~192 destinations. Outbound SMS is capped at 150 messages per day on all plans. No setup fees, and porting a number in is free.
Starter or Business for a two-person shop?#
Business. Starter sells to exactly one user on yearly billing, so a second seat forces the upgrade either way.
Is Allo the same company as the fiber internet provider?#
No. ALLO Communications is a Nebraska ISP that owns most of the search results for this query. The phone system reviewed here is Allo at withallo.com, a separate company.
