OpenPhone vs Google Voice: Which Should You Pick?

A $10 price tag is doing a lot of heavy lifting in the OpenPhone vs Google Voice debate. Google Voice looks like the cheapest way to get a business number. OpenPhone (now called Quo) looks like the modern upgrade. Both pitches are true, and both leave out the parts that cost you later.

Marcus runs a six-person HVAC company. He picked Google Voice because his crew already used Gmail, and $10 a user sounded fair. Three months in, he found the catches: no toll-free number, no auto-attendant on his plan, and a separate Google Workspace bill he hadn't budgeted for. A missed call from a property manager (a $4,000 job, he later learned) went to a voicemail nobody checked. Sound familiar?

This comparison breaks down what OpenPhone and Google Voice actually cost, what each does well, and where both leave gaps. We'll also bring in dialnote, an AI-first phone system with flat-rate pricing, as the third option worth weighing before you commit.

TL;DR:

• In the OpenPhone vs Google Voice matchup, OpenPhone starts at $15/user/month (annual) and Google Voice at $10/user/month, but Google Voice also requires a paid Google Workspace plan from about $7/user/month.
• Google Voice's $10 Starter plan caps you at 10 users and skips the auto-attendant, ring groups, and toll-free numbers. Most teams need Standard at $20/user/month.
• OpenPhone (rebranded to Quo in late 2025) is the stronger business tool: shared numbers, team inboxes, and the Sona AI agent, though its best features sit on the $23/user/month Business plan.
• Both charge per user, so a 10-person team pays $230 to $270 a month either way. dialnote's Business plan is $99/month flat with unlimited users and an AI receptionist included.
• You can port your number away from either platform in about 1 to 3 weeks.

A quick look at OpenPhone and Google Voice

These two products come from very different places. OpenPhone launched as a startup-friendly business phone built around calling, texting, and shared team inboxes. In late 2025 it rebranded to Quo and pushed harder into AI with Sona, its AI voice agent. Review sites still mix both names, so don't be confused when you see "Quo (formerly OpenPhone)." Same product, new label.

Google Voice for business is part of Google Workspace. It gives each user a phone number that works in Gmail-style apps on any device. That's the appeal: if your team lives in Google already, Voice slots in with almost no learning curve. Admin setup happens in the same console as email.

But the two aren't really playing the same game. OpenPhone is trying to be your whole front office. Google Voice is trying to be a phone line. That difference shows up everywhere: features, pricing, and what happens when a call goes unanswered.

According to Fortune Business Insights, the VoIP market keeps growing at over 10% a year, and small businesses drive most of it. There's no shortage of choices. The question is what you're actually buying.

OpenPhone vs Google Voice: how do the features compare?

The short answer: OpenPhone wins on business features, Google Voice wins on simplicity and Google integration. OpenPhone gives you shared numbers, business texting, and AI tools. Google Voice gives you a clean, reliable line inside the Google apps you already pay for.

Where Google Voice gets thin is everything around the call. There are no toll-free numbers on any plan. Texting is US-only and basic. There's no shared team inbox, so two people can't work the same number's calls and texts the way an OpenPhone team can. And the Starter plan blocks the auto-attendant entirely, so callers can't even press 1 for sales.

OpenPhone covers those basics well. Numbers can be shared across teammates, texts and calls sit in one thread, and voicemail transcription is standard. Its Sona AI agent answers calls you miss, though it runs on a credit system: roughly 10 free AI-handled calls a month before you're buying credit packs.

Here's the side-by-side, with dialnote included as the third column:

One thing Google Voice genuinely does well: reliability and admin control. It rides on Google's infrastructure, and user management is the same console your IT person already knows. If that's your top priority, it's a real point in Google's favor.

The availability row deserves a pause, because it disqualifies both tools for a lot of readers. OpenPhone only sells US and Canadian numbers; if your business needs a local presence anywhere else, it can't give you one. Google Voice for business operates in just 14 countries, and its cheapest plan is US-calling only. dialnote is open to businesses worldwide, with numbers in the US, Canada, UK, India, and France today (more countries opened on request), calling to 90+ countries, and business texting included, so where you're based (or where your customers are) doesn't rule it out.

What does each one really cost?

The sticker prices say $10 vs $15. The real math says something else, because Google Voice never travels alone.

Every Google Voice business plan requires a paid Google Workspace subscription, billed separately, starting at about $7/user/month. So the "cheap" $10 Starter plan is really $17 or more per user, and it caps you at 10 users, has no auto-attendant, and can't ring a group of phones. Teams that need those basics land on Standard at $20/user/month, plus Workspace. So what's the catch with the low price? The low price is the catch.

OpenPhone's pricing is more straightforward: $15/user/month on Starter (annual billing), $23 on Business, and $35 on Scale. Monthly billing runs higher, at $19, $33, and $47. The features most businesses actually want (auto call recording, phone menus, CRM integrations, AI summaries) live on Business.

Both share the same structural problem, though: every hire raises the bill. Here's the monthly cost picture for growing teams, using OpenPhone Business and Google Voice Standard plus Workspace Starter:

dialnote's pricing flips the model: flat plans at $49/month (Team), $99/month (Business), and $199/month (Pro), all with unlimited users. A solo plan runs $19/month. The 10-person team paying $230 to $270 above pays $99, and the number doesn't move when they hire.

One more line item people miss: fair use. OpenPhone's "unlimited" US/CA calling caps out around 1,000 minutes per user before fair-use rules kick in. Google Voice meters international calls on Starter and Standard. Read the fine print before you promise your sales team unlimited dialing.

Which one answers calls when you can't?

This is where the two products separate, and honestly, it's the question small businesses should ask first. A phone system's job isn't just carrying calls. It's making sure a call you miss doesn't turn into a customer you lose.

Google Voice's answer is voicemail. It's good voicemail, with solid transcription in your inbox, but it's still voicemail. There's no AI answering, no lead capture, no booking. After-hours callers hear a greeting and decide whether to leave a message. Many don't.

OpenPhone's answer is Sona, its AI voice agent. Sona greets callers, answers common questions from info you provide, and takes messages. It's genuinely useful, but it's metered: plans include 1,000 automation credits a month, which works out to about 10 AI-handled calls, and then you're buying credit packs from $25/month.

dialnote treats AI answering as the core product instead of an add-on. Its AI receptionist answers 24/7 in 14 languages, asks the questions you configure, captures lead details, books meetings through Calendly or Cal.com, sends texts, and transfers callers to a teammate when needed. After the call, an AI summary with key points syncs to your CRM, so nobody's typing up notes. You can even test the AI receptionist on dialnote's website before signing up.

If full AI answering is more than you want, the same system covers the quieter options too: an automated text back to the caller, a voice message promising a callback, or plain voicemail with a transcript. You pick the behavior per number.

We can't say for certain how much Google will keep investing in Voice's feature set; it has moved slowly for years while the rest of the market raced toward AI. But right now, the gap is plain: one of these platforms has no AI story at all.

What are they like to live with day to day?

Feature tables miss something important: what the tool feels like at 2 PM on a busy Tuesday. Here's how the daily experience differs.

Google Voice feels like Gmail. That's its superpower. Calls ring in the browser tab or the mobile app, voicemails land as transcribed notes, and there's nothing to train anyone on. Admins add users in the Workspace console in about a minute. But that simplicity cuts both ways. When a customer texts a photo of a broken part, or two people need to see the same conversation, or you want a weekend caller to reach anyone at all, there's no path. You feel the ceiling early.

OpenPhone feels like a shared team app, closer to Slack than to a phone. Numbers work like channels: a few teammates can watch the same line, see the full call and text history with a customer, and leave internal notes on a thread. Contact context follows the conversation. The trade-off is that the good workflow features (auto recording, phone menus, integrations) keep nudging you toward the Business tier, and admin questions mean email support unless you're on a higher plan.

Day to day, the deciding question is usually texting. If customers text you photos, confirmations, and "running late" messages, Google Voice's bare-bones SMS gets old fast. OpenPhone treats texting as a first-class channel. So does dialnote, which adds the AI layer on top: missed calls get answered, and the conversation still lands in one place.

Then there's the phone-number question nobody asks until it matters. Google Voice gives each user one number, period, and no toll-free option exists at any price. OpenPhone includes one number per user and sells extras at $5/month each. dialnote's Business plan includes 3 numbers, with additional local numbers at $1.25/month. If your business runs separate lines for sales, support, and ads tracking, that difference adds up quietly.

Where both fall short

Google Voice's gaps:

• No toll-free numbers, on any plan. If your marketing needs an 800 number, you're out.
• No shared numbers or team inbox, so teams can't collaborate on one line.
• Texting is US-only and limited. Not a fit for SMS-heavy businesses.
• Requires a paid Google Workspace plan, which hides the true per-user cost.
• No AI features: no answering, no summaries, no transcript intelligence.
• Available in only 14 countries, and the Starter plan is US-calling only.

OpenPhone's gaps:

• Per-user pricing, with the useful features on the $23/user Business tier.
• Sona is credit-metered. Around 10 free AI calls a month, then paid packs.
• Fair-use calling cap of roughly 1,000 minutes per user, one of the lower limits around.
• No video meetings built in.
• The rebrand to Quo has left reviews, help articles, and search results confusingly split between two names.

Here's our take: Google Voice isn't really a business phone system. It's a second phone number with a Google login. That's not an insult; for a solo consultant who just needs a separate line, it's fine. But the moment calls become revenue (missed ones especially), it's the wrong tool.

Why dialnote might be the better pick

Both of these platforms make you choose between cheap and capable. dialnote was built to skip that trade-off.

Flat pricing that ignores headcount. Plans are $49, $99, and $199 a month with unlimited users. A 10-person team pays less than either option above, and the bill stays put as you grow.

An AI receptionist included, not metered. dialnote's AI answers every missed call, captures the caller's details with your questions, books meetings, and hands off to a human when it should. No per-call credits.

The after-call work handled. Transcripts, AI summaries, and CRM sync to HubSpot, Salesforce, Pipedrive, or Zoho come with the Business plan. Reps stop typing notes; managers stop guessing what was said.

Calling reach. dialnote supports calling to 90+ countries, plus local and toll-free numbers, without an enterprise contract.

A migration that doesn't hurt. Porting your number in takes about 1 to 3 weeks, and there's no downtime cutover day. Our guide to switching business phone providers walks through the whole process.

If you're leaning toward leaving either platform entirely, our Google Voice alternatives guide and OpenPhone alternatives guide go deeper on the full field.

How do you switch without losing your number?

Whichever direction you're moving, the porting process is the same, and it's less scary than it sounds. US carriers can't hold your number hostage; porting rights are protected by FCC rules. Here's the short version:

1. Sign up with the new provider first. Don't cancel anything yet. A canceled account can forfeit the number before the port starts.
2. Submit the port request. Your new provider files the paperwork. You'll need the account number and PIN from your current provider. (Google Voice users: turn off the number lock in your Voice admin settings first.)
3. Keep both running during the wait. Ports take about 1 to 3 weeks. Your old line works normally the entire time, so there's no dead air.
4. Test, then cut over. Once the port completes, calls route to the new system automatically. Your customers dial the same number they always have.

The one real gotcha: timing your billing. Don't prepay an annual plan on the system you're leaving, and don't cancel until you've confirmed the port finished. Beyond that, the switch is mostly waiting.

Marcus, the HVAC owner from earlier? His port took nine days. His crew didn't tell a single customer, because no one needed to know. The number stayed; the missed-call problem left.

OpenPhone or Google Voice: which should you pick?

Pick Google Voice if you're a solo operator or tiny team already paying for Google Workspace, you only call within the US, and you just need a clean second line with good voicemail. It's the cheapest credible option for that narrow job.

Pick OpenPhone if you want a modern team phone with shared numbers and texting, you're comfortable with per-user pricing, and about 10 AI-handled calls a month covers your missed-call risk.

Pick dialnote if missed calls cost you real money and you want AI answering, call summaries, and CRM sync included on a flat bill. It's built for the stage where every new hire on a per-seat plan starts to sting.

The honest bottom line on OpenPhone vs Google Voice: Google Voice wins the price column until you add Workspace and count what's missing. OpenPhone wins the feature column until your team grows and the per-seat math catches up. If neither trade feels right, that's the gap the third option exists for.

Start a free 10-day trial of dialnote, no credit card required, or see what your team would pay next to both.