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Onyx Phone vs Nextiva

Nextiva sells business phone, contact center, and customer experience software, with its best prices on yearly terms. Onyx Phone is a shared business phone for small teams, priced low on monthly billing.

Prices side by side

Nextiva and Onyx Phone plans, per month
PlanBilled monthlyBilled yearly, per monthCharged
Nextiva NEXT Core $23 $15 Per user
Nextiva NEXT Engage $50 $25 Per user
Nextiva NEXT Scale $75 Not published Per user
Onyx Phone Starter $17 $13 Per user
Onyx Phone Business $29 $21 Per user
Onyx Phone Scale $42 $32 Per user

Nextiva's list prices from its pricing page, checked on October 24, 2026, before taxes and fees. Prices change, so check theirs before you decide.

What a team of five pays each month

Five people on Onyx Phone Starter cost $85 a month, billed monthly, with a number included for each person. Nextiva NEXT Core is $115 a month, billed monthly for the same five people. That is $30 more each month, about $360 a year.

Nextiva's yearly small-business prices apply to new customers on a 12-month or longer term. Month to month costs more. Onyx Phone bills monthly or yearly, and yearly saves up to 27%.

Where Nextiva is stronger

  • Contact center and omnichannel customer service tools from the same vendor.
  • Low yearly price on NEXT Core if you commit to a 12-month term.

Where Onyx Phone is stronger

  • $17 per user on monthly billing, against $23 for NEXT Core.
  • No 12-month term needed for a good price.
  • Unlimited business texting for each user on every plan.
  • Desk phones, the browser, and the iPhone and Android apps ring together.
  • Connect Claude or ChatGPT to your calls. See how.

Which one fits

Pick Nextiva if

  • You need a contact center or omnichannel support desk.
  • You'll sign a 12-month term for the lowest rate.

Pick Onyx Phone if

  • You want to pay monthly without a long term.
  • You need a shared phone and texting, not a contact center.

Switching from Nextiva

Start a 7-day free trial and you get a temporary local number right away, so calls work while your Nextiva number moves over. Moving the number is free and usually takes 3 to 7 business days once you sign. Keep your Nextiva service until the move is done. How to move your number from Nextiva covers the account number and PIN it asks for.

Questions

Does Nextiva require a contract?

Its lowest small-business prices are for a 12-month or longer term. Onyx Phone can be billed monthly and canceled from Billing.

How do I move my number from Nextiva?

The Nextiva porting guide covers how to get the port-out PIN. Porting is free and usually takes 3 to 7 business days.

Included on every plan

Starter is $17, Business is $29, Scale is $42 per user a month, or less billed yearly. The plan includes a business number for each user and unlimited calling and texting in the US and Canada. Every plan starts with a 7-day free trial, and moving your current number over is free.

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