Seat-priced phone system · United States

Grasshopper vs Vonage Pricing (2026): $5.50 vs $12.59 per Seat

At ten seats over three years, Grasshopper costs $5.50 per seat per month and the other costs $12.59 — a difference of $2,552 across the term for a ten-seat business.

The published prices are $55.00 a month flat and $12.59, which is not always the same ranking.

Side by side

The cheapest plan on each side that covers ten seats, United States pricing. Where a plan's user cap is passed at a larger size, the row names the plan the provider moves you to and prices that instead. Sources: Grasshopper checked 2026-09-05 and Vonage Business Communications checked 2026-09-05.
	Grasshopper	Vonage Business Communications
Cheapest plan that covers 10 seats	Small Business	Mobile (5–19 lines)
Published price	$55.00 a month flat	$12.59
On	flat monthly	annual billing
Monthly billing	not published	$17.99
Minimum seats	1	5
Requires first	nothing stated	nothing stated
Effective / seat at 1 seat	$14.00 True Solo	$13.99 Mobile (1–4 lines)
Effective / seat at 3 seats	$8.33 Solo Plus	$13.99 Mobile (1–4 lines)
Effective / seat at 5 seats	$11.00	$12.59
Effective / seat at 10 seats	$5.50	$12.59
Effective / seat at 25 seats	$2.20	$10.49 Mobile (20–99 lines)
Effective / seat at 50 seats	$1.10	$10.49 Mobile (20–99 lines)
Three-year cost at 10 seats	$1,980	$4,532
Taxes and fees	says nothing about taxes or regulatory fees on its pricing page	says taxes and fees are added separately, without saying how much
Owner	not confirmed	Ericsson

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

The answer flips on size. At 1 seat Vonage Business Communications is cheaper per seat; at 50 seats Grasshopper is. Minimum seat counts, user allowances and the plan each provider makes you move to are why.
The plan changes as the team grows. Grasshopper moves to True Solo at 1 seat, then Solo Plus at 3 seats; Vonage Business Communications moves to Mobile (1–4 lines) at 1 seat, then Mobile (20–99 lines) at 25 seats. The figures above already price the plan you would actually be on at each size, not the entry plan stretched past its cap.
Only one of these publishes a monthly-billing rate. Vonage Business Communications does; Grasshopper 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:

Grasshopper (6 open items)

Taxes and regulatory fees: 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: monthly-billing prices (only "billed annually" and "annual savings over 20%" are published in text).

Not confirmed: whether the $25 and $55 figures are annual-billing or monthly-billing prices (blog table does not say).

Vonage Business Communications (6 open items)

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).

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

Not confirmed: whether the 30% annual-contract discount is still applied at checkout: the annual "Buy now" links carry couponcode=30PERCENTOFF and the plan SKU, and the pricing page still shows the offer on 2026-09-05 despite "valid through January 31, 2026", but the cart (/promo/buy/) is blocked outside the US so the checkout total itself could not be read.

The full list for each provider is on its own page: Grasshopper, Vonage Business Communications.

What changed on either side

18 recorded changes across the two providers: 0 on a provider's own page, 18 correcting a figure this site held. The most recent six:

2026-09-05 — Vonage Business Communications: correction to our data plan line-up Mobile, Premium, Advanced → Mobile (1–4 lines), Mobile (5–19 lines), Mobile (20–99 lines), Premium (1–4 lines), Premium (5–19 lines), Premium (20–99 lines), Advanced (1–4 lines), Advanced (5–19 lines), Advanced (20–99 lines). The pricing page prices each plan by employee-count band (1–4 / 5–19 / 20–99; 100+ is Contact sales). The earlier rows held only the 1–4 band figures, so each plan is now split into one row per band with min_seats/max_seats so the seat-count pages pick the right band.
2026-09-05 — Vonage Business Communications: correction to our data Mobile (5–19 lines): seat price, billed annually not held → 12.59. New band row read from the rendered page (5–19 employees).
2026-09-05 — Vonage Business Communications: correction to our data Mobile (5–19 lines): seat price, billed monthly not held → 17.99. New band row read from the rendered page (5–19 employees).
2026-09-05 — Vonage Business Communications: correction to our data Mobile (20–99 lines): seat price, billed annually not held → 10.49. New band row read from the rendered page (20–99 employees).
2026-09-05 — Vonage Business Communications: correction to our data Mobile (20–99 lines): seat price, billed monthly not held → 14.99. New band row read from the rendered page (20–99 employees).
2026-09-05 — Vonage Business Communications: correction to our data Premium (5–19 lines): seat price, billed annually not held → 19.59. New band row read from the rendered page (5–19 employees).

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

Grasshopper pricing page. checked 2026-09-05
Vonage Business Communications 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.