Nextiva vs OnSIP (2026): which should you pick?
As of Nov 12, 2026, Nextiva grades higher than OnSIP: 2.2 against 2.0 out of 4.0.
Checked Nov 2, 2026 and Nov 12, 2026 · graded Nov 2, 2026 and Nov 12, 2026 by ToolGPA
Nextiva grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Nextiva
Business phone, texting and video with an optional AI receptionist
Which one is for you
Pick Nextiva if
- Fits if you also answer website chat and online reviews and want them in one inbox
- Works for offices on Linux, which Nextiva's desktop app runs on
Look elsewhere if
- Skip it if you want to try before paying, as there's no free trial of the phone plans
- Pricey if you pay monthly, at $23 for NEXT Core and $50 for NEXT Engage
- Tight if you need call recording or a toll-free number, as both are add-ons on NEXT Core
- Watch out: Salesforce, HubSpot and other CRMs are add-ons on every plan
- Not for you if you want to buy online, as all three plans go through a sales demo
Pick OnSIP if
- Fits if you run a small office of five or more in the U.S. or Canada and want desk phones in the price
- Works for teams that already own SIP phones and would rather pay per feature
Look elsewhere if
- Skip it if you have fewer than 5 users, because Unlimited has a 5-user minimum
- Not for you if you are outside the U.S. and Canada, which the sign-up page says it does not serve
- Pricey if you need recording or queues, at $4.95 and $14.95 per user a month on top
- Watch out: E911 is $1.80 per user a month and each extra number is $2.00
- Watch out: there is no free plan and no trial
How we grade them
| 2.2GPANextivaFair | 2.0GPAOnSIPFair | |
|---|---|---|
| Value for money | C$15 a head for five on NEXT Core with a 12-month term, or $23 paid monthly. That's just over this category's cheaper quarter ($14). Recording, a toll-free number and fax are add-ons on Core, NEXT Engage is $25, or $50 paid monthly, and XBert AI costs $1.50 a conversation. | C$18.95 per user a month with a 5-user minimum, against a category middle of $19. The $49.95 pay-as-you-go account bills calls at 3.2 cents a minute on top. |
| Free plan and trial | FNo free plan and no free trial of the phone plans. Only the XBert AI Receptionist add-on has a 14-day trial. | FNo free plan and no trial on record. The listing shows only the paid Unlimited and Pay-as-you-go accounts. |
| Features | BCalls with an auto-attendant, texts, video meetings, team chat and one inbox for calls, texts, email, social and reviews. Every plan has AI transcriptions and summaries (50 a month on Core, unlimited on Scale), and Scale adds supervisor monitoring. That covers the job, though CRMs are add-ons on every plan. | CAuto attendants, ring groups, ACD queues, SMS and MMS are all listed. But recording is $4.95 per user a month, enhanced queues $14.95 and E911 $1.80, so the basics come with a meter. |
| Ease of use | CNo App Store rating on record. All three plans go through a sales demo, and there are phone menus to build before you're running. | CNo store rating on record. It needs phones or apps set up, auto attendants and rules built, and each feature switched on and priced. |
| Platforms and integrations | AWeb, Mac, Windows, Linux, iPhone and Android, with Microsoft Teams, Salesforce, HubSpot, Outlook and Google Contacts. | ASoftphone apps for Mac, Windows, Linux, iOS and Android, a browser app and any SIP device, plus HubSpot, Zendesk and Odoo and an open API. |
| Best for | phone, texts, video and web chat from one provider | small offices that want phones in a per-user price |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Nextiva and OnSIP. How we grade
Price against what you get
Nextiva starts at $15 a month for each person and scores 3.0 out of 4 on features, ease of use and platforms. OnSIP starts at $18.95 a month for each person and scores 2.7.
Nextiva scores higher and starts $3.95 a month lower. Of the other business phone systems on the chart, none scores higher than Nextiva for less, and 4 score higher than OnSIP for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Nextiva also covers transcription, team chat and video calls.
At a glance
| Nextiva | OnSIP | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $15 per user / month, billed annually ($23 billed monthly) | $18.95 per user / month (5-user minimum) |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| iOS | ||
| Android | ||
| Made by | Nextiva | Junction Networks |
| Price read from | nextiva.com | onsip.com |
| Checked | Nov 2, 2026 | Nov 12, 2026 |
Worth knowing
Nextiva
- Annual prices apply to new small businesses with 1-100 employees on a 12-month term; paid monthly, NEXT Core is $23 and NEXT Engage $50.
- On NEXT Core, call recording, a toll-free number, fax and Microsoft Teams are add-ons; Salesforce, HubSpot and other CRMs are add-ons on every plan.
- There is no free trial of the phone plans; all three are offered through a demo with sales, and XBert AI conversations cost $1.50 each on top of any plan.
- Contact center plans, from $75 per agent a month, are a separate product line on the Enterprise tab.
OnSIP
- Unlimited needs at least 5 users; the Pay-as-you-go plan does not include calling minutes.
- Many features are paid add-ons: call recording is $4.95 per user a month and enhanced queues $14.95 per user a month.
- E911 is $1.80 per user a month and each extra phone number is $2.00 a month.
- The sign-up page says OnSIP does not service locations outside the U.S. and Canada.
Key features
Nextiva
- Calling and phone menus
- Unlimited calls with an auto-attendant and call menus on every plan. Smart call routing comes with Scale or with the call center add-on on Engage.
- Business texting
- Texts from the business number: 100 per user a month on NEXT Core, 500 on NEXT Engage and unlimited on NEXT Scale. Customers texting the team needs Engage.
- Video meetings and team chat
- Video calls with screen and file sharing and team messaging sit in the same app. Recording video meetings needs Engage or Scale.
- Shared inbox and reviews
- One inbox gathers calls, texts and email, with shared team email accounts and a set number of connected social media and online review accounts per plan.
- AI transcripts and summaries
- Every plan now includes AI transcriptions, summaries and answer suggestions: 50 a month on NEXT Core, 200 on NEXT Engage and unlimited on NEXT Scale.
- XBert AI Receptionist
- An add-on that answers calls, texts and chats around the clock. It costs $99 a month for 100 AI conversations and has a 14-day free trial.
OnSIP
- Call handling
- Auto attendants, business-hour rules, ring groups, call parking, transfers, call screening and a dial-by-name directory.
- Call center options
- ACD queues, live queue dashboard, historical reporting, and monitor, whisper and barge, with queue features priced per user.
- SMS and MMS
- Business texting from your number in the apps; the Unlimited plan includes 250 messages per account, with 1 cent overage.
- Apps and phones
- Softphone apps for Mac, Windows, Linux, iOS and Android, a browser app, and any SIP-enabled device.
- Integrations
- Connections to HubSpot, Zendesk and Odoo, a Chrome extension, and an open API.
- Month-to-month terms
- The site describes month-to-month contracts with onboarding included, and lists each add-on feature with its own rate.
Plans
Nextiva
NEXT Core$15
per user / month, billed annually ($23 billed monthly)
Calls, video, team chat, 100 texts per user a month, skills-based routing, a basic CRM and 50 AI transcriptions and summaries a month. Annual price needs a 12-month term.
NEXT Engage$25
per user / month, billed annually ($50 billed monthly)
Adds live chat and a chatbot, 2,000 toll-free inbound minutes, 500 texts per user a month, single sign-on, fax and 200 AI transcriptions and summaries a month.
NEXT Scale$75
per user / month, billed monthly or annually
Adds unlimited texts, 10,000 toll-free inbound minutes, directory sync, unlimited AI transcriptions and summaries, supervisor monitoring and dedicated onboarding.
OnSIP
Unlimited$18.95
per user / month, 5-user minimum
Unlimited standard calling, VoIP phones included, unlimited auto attendants, ring groups and recording users.
Pay-as-you-go$49.95
per month for the account
For low call volume: calling billed at 3.2 cents a minute, 1 auto attendant, 3 recording users, inbound SMS and MMS.
Ways to pay less
Nextiva
- Annual discount
Save up to 50% with annual pricing
Nextiva's pricing page lists NEXT Core at $15 per user a month annually against $23 monthly, and NEXT Engage at $25 against $50.
- Other savings
Switch and Save: up to 12 months free
Businesses under 200 employees leaving another provider's contract get free months matching its remaining term, with proof and a 12-month Core or Engage plan.
OnSIP
No public discounts listed.
Common questions
Which is cheaper, Nextiva or OnSIP?
As of Nov 12, 2026, Nextiva is cheaper to start with: $15 a month for each person, against $18.95 a month for each person for OnSIP. Nextiva starts at $15 per user / month, billed annually ($23 billed monthly), and OnSIP starts at $18.95 per user / month (5-user minimum).
Which has a free plan, Nextiva or OnSIP?
As of Nov 12, 2026, neither Nextiva nor OnSIP has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.