Seat-priced phone system · United States

Ooma Office vs OpenPhone (now Quo) Pricing (2026): $20.03 vs $15 per Seat

At ten seats over three years, OpenPhone (now Quo) costs $15.00 per seat per month and the other costs $20.03 — a difference of $1,812 across the term for a ten-seat business.

The published prices are $19.95 and $15.00, which is not always the same ranking.

Side by side

The cheapest plan on each side that covers ten seats, United States pricing. Sources: Ooma Office checked 2026-09-05 and OpenPhone (now Quo) checked 2026-09-05.
	Ooma Office	OpenPhone (now Quo)
Cheapest plan that covers 10 seats	Essentials	Starter
Published price	$19.95	$15.00
On	monthly billing	annual billing
Monthly billing	$19.95	$19.00
Minimum seats	1	1
Requires first	nothing stated	nothing stated
Effective / seat at 1 seat	$20.78	$15.00
Effective / seat at 3 seats	$20.23	$15.00
Effective / seat at 5 seats	$20.12	$15.00
Effective / seat at 10 seats	$20.03	$15.00
Effective / seat at 25 seats	$19.98	$15.00
Effective / seat at 50 seats	$19.97	$15.00
Three-year cost at 10 seats	$7,212	$5,400
Taxes and fees	says taxes and fees are added and vary by location, with a lookup rather than a figure	says taxes and fees are added and vary by location, with a lookup rather than a figure
Owner	not confirmed	not confirmed

How that is worked out

seats billed = max(seats you have, minimum seats the plan requires) plan per month = published seat price x seats billed three-year cost = plan per month x 36 + setup fee effective per seat = three-year cost / (36 x seats you have) monthly-billing gap = monthly-billing price / annual-billing price flat package = flat monthly price + (seats billed - users included) x additional-user price add-on plans = shown on the provider's page, never ranked (they are not a phone system on their own) calls not included = shown on the provider's page, never ranked (calls are billed per minute, or sold as separate call packages, on top of the seat price) plan at each size = the cheapest plan that covers that seat count; a plan with a user cap hands over to the next one

Nothing else is added. Taxes, regulatory recovery fees, USF and e911 charges are not added to any figure on this site. On taxes and regulatory fees, 2 of the 37 providers state that the price already carries them on at least one plan, 0 publish what they come to, 14 say they are extra without an amount, and 21 say nothing. Where a provider says the price is all-inclusive or includes them, the page says so beside the figure; everywhere else the invoice will be higher than the figure. Where a plan needs another subscription first (a Google Workspace or Microsoft Teams license), that subscription is not in the figure and the page says so. Handset purchases, number porting, international calling and overage are excluded. Every figure here is a floor. The full method is at Method.

Where the answer changes

Size does not change the ranking here. OpenPhone (now Quo) is cheaper per seat at every size where both have a plan.
Only one of these publishes a monthly-billing rate. OpenPhone (now Quo) does; Ooma Office does not, so what monthly billing costs there is not knowable from its page.
Neither figure is the invoice — taxes and regulatory fees are added on top of both, and neither provider publishes what they come to.

What is not confirmed on either side

Figures on this page come from each provider's published pages only. These points were not stated there, so the comparison does not include them:

Ooma Office (7 open items)

Not confirmed: all Enterprise plan pricing fields (custom/quote-based).

Taxes and regulatory fees: not stated in the provider's published documentation (checked 2026-09-05).

Free trial: not stated in the provider's published documentation (checked 2026-09-05).

Max seats: not stated in the provider's published documentation (checked 2026-09-05).

OpenPhone (now Quo) (4 open items)

Taxes and regulatory fees: not stated in the provider's published documentation (checked 2026-09-05).

Max seats: not stated in the provider's published documentation (checked 2026-09-05).

Ownership: not stated in the provider's published documentation (checked 2026-09-05).

Not confirmed: US carrier (TCR) messaging fees are third-party charges; whether Quo passes them through unchanged is not stated.

The full list for each provider is on its own page: Ooma Office, OpenPhone (now Quo).

What changed on either side

1 recorded change across the two providers: 0 on a provider's own page, 1 correcting a figure this site held. The most recent:

2026-09-05 — OpenPhone (now Quo): correction to our data tax and fee treatment separate_stated → locale_dependent. The pricing page links "Applicable taxes and fees" to a support article that lists the 16 US states where Quo assesses telecom taxes (by billing address) plus federal FUSF/TRS charges. Amounts are not published.

Every entry, by month, with an RSS feed: What changed.

Who this is not for

This compares published prices and nothing else. It is not a judgment about call quality, support or reliability, and neither product has been used by us. If the two prices are close, this page will not decide it for you and should not.

Sources

Ooma Office pricing page. checked 2026-09-05
OpenPhone (now Quo) pricing page. checked 2026-09-05

Written by Kaz (pen name). Figures are copied from providers' published pricing pages on the dates shown. We have not used these products. Corrections: contact form.