PagerDuty is the default pick for most engineering and IT teams that need on-call scheduling, incident response and a free plan for up to 5 users, while AlertMedia and Everbridge fit employers that need to reach a whole workforce in an emergency. The cheapest entry price in this list is OnPage at $13.99 per user per month on annual billing, and the cheapest on-call entry for a small team is AlertOps Free for up to 5 users, with Standard at $10. Atlassian will shut down standalone Opsgenie on April 5, 2027, so do not start a new Opsgenie rollout now, and plan a move to one of the tools in this list instead.
Critical communication software covers two different jobs. On-call tools page the right engineer, run escalations and keep an incident moving until it is fixed. Mass notification tools reach employees at once by SMS, voice, email and app push, and confirm who has seen the message. Prices below come from each vendor pricing page opened on 2026-11-12, with quote only where no list price is shown.
On this page
Top critical communication software: comparison table
Swipe the table sideways on a phone to see every column.
| # | Name | Best for | Starting price | Free plan / trial | Link |
|---|---|---|---|---|---|
| 1 | PagerDuty | Engineering teams that need on-call and incident response | $21 per user/month | Yes | Visit |
| 2 | xMatters | Large IT teams that need incident orchestration | $15 per user/month | Yes | Visit |
| 3 | ilert | Small teams that need alerting with a free tier | $19 per user/month | Yes | Visit |
| 4 | OnPage | IT, clinical and MSP teams that need persistent alerts | $13.99 per user/month | Free trial (7 days) | Visit |
| 5 | AlertOps | IT operations teams that need on-call and workflows | $10 per user/month | Yes | Visit |
| 6 | Squadcast | SRE teams that need on-call and incident response | $15 per user/month | Free trial (14 days) | Visit |
| 7 | Everbridge | Large employers that need mass notification and risk intelligence | quote only | No | Visit |
| 8 | AlertMedia | Employers that need emergency alerts and threat intelligence | quote only | No | Visit |
The 8 best top critical communication software tools, in detail
PagerDuty
Best for: Engineering teams that need on-call and incident response
PagerDuty pricing shows two families side by side. Incident Management has a Free plan and a Professional plan at $21 per user per month, while the PD Reliability Platform is sold as a yearly platform fee. Starter costs $2,800 per year, with a 30 seat cap, 5,000 Signal Intelligence Events and 1,000 AI Actions.
- Essential costs $12,000 per year for 25 seats, and Plus costs $48,000 per year for 50 seats.
- The split matters for budgeting: a small team can start on Professional and pay per user, while a larger team on a platform plan pays a yearly fee and
- AIOps, now called Signal Intelligence, and Runbook Automation sit outside Professional as add-ons.
- Choose PagerDuty for a large integration set, not when you need AIOps in that entry price.
Pros
- Free plan for up to 5 users
- Professional at $21 per user per month
- platform plans with set event and AI action allowances
Cons
- AIOps and Runbook Automation are add-ons on Professional
- platform plans use credit packs for extra seats, events and AI actions
xMatters
Best for: Large IT teams that need incident orchestration
xMatters, now part of Everbridge, routes alerts, runs on-call schedules and opens incident channels in Slack and Microsoft Teams. Starter costs $15 per user per month, Base costs $39, and Advanced is priced by quote. The free plan covers up to 5 users, with unlimited email and mobile push notifications, and SMS and voice allowances set per full user per month.
- Multilingual messaging covers 42 languages.
- Status pages and the Incident AI Agent are held for Advanced, and Starter caps the number of users, so a growing team must move to Base at $39 per use
- Choose xMatters when you already use Everbridge or ServiceNow, or when you need deep incident workflows and multilingual alerts.
- Do not choose it when a status page is a day-one need, because that forces a quote for Advanced.
Pros
- Free plan for up to 5 users
- Starter at $15 per user per month
- messages in 42 languages
Cons
- Status pages are held for the Advanced plan
- SMS and voice allowances are capped per user on Starter and Base
ilert
Best for: Small teams that need alerting with a free tier
ilert has a clear free tier for small teams. Free covers up to 5 users, with 1 status page, 100 SMS and voice notifications account-wide per month, and 1 on-call schedule. Pro costs $19 per user per month on annual billing, with a minimum of 3 users, and adds unlimited SMS and voice notifications, single sign-on, unlimited viewer users and 250 AI credits per month.
- Yearly plans cost 20 percent less, and the trial runs for 14 days with no credit card required.
- The free tier is useful for a trial, but its limits are tight in a real incident.
- One schedule and one escalation policy mean a team with two services or two rotations will hit the limit fast, and 3 responders per escalation level i
- Call routing and status pages are add-ons.
Pros
- Free plan for up to 5 users with 100 SMS and voice notifications
- Pro at $19 per user per month with unlimited SMS and voice
- yearly plans cost 20 percent less than monthly
Cons
- Free plan allows only 1 schedule, 1 escalation policy and 3 responders per escalation level
- call routing and status pages are add-ons
OnPage
Best for: IT, clinical and MSP teams that need persistent alerts
OnPage is built around one idea: a critical alert should keep sounding until someone reads it. The entry plan costs $13.99 per user per month when billed yearly, or $16.99 when billed quarterly. Enterprise Silver costs $22.99 per user per month on annual billing, and Enterprise Gold costs $28.99.
- Persistent notifications run for up to 8 hours, and the pricing page lists HIPAA compliance, six-year data retention, on-call scheduling, escalation g
- Phone features cost extra at every tier.
- A dedicated line costs $360 per year for up to 500 minutes per month, voicemail costs $5 per user per month, SMS costs $5 per user per month, and live
- That makes OnPage cheap for app and push alerts, and more costly when every alert must also go out by phone.
Pros
- Entry plan at $13.99 per user per month on annual billing
- persistent notifications for up to 8 hours
- HIPAA compliance listed on the pricing page
Cons
- No free plan, only a 7-day trial
- dedicated line, voicemail and live call routing are add-ons
AlertOps
Best for: IT operations teams that need on-call and workflows
AlertOps has on-call scheduling at its core, plus alert routing, workflows and integrations with monitoring and ITSM tools. Free costs $0 per month for up to 5 users, Standard costs $10 per user per month, Premium costs $22, and Enterprise costs $34. Annual billing saves up to 20 percent compared with monthly billing, and a 14-day trial is offered with no credit card required.
- Free allows 125 SMS and 25 voice notifications account-wide in the United States and Canada, while Standard allows 25 phone and 25 SMS messages per us
- Data retention is 3 months on Free, 6 months on Standard, 12 months on Premium, and custom on Enterprise.
- Status pages are an add-on on Standard and Premium, with 3 included on Enterprise.
- Choose AlertOps for a free tier and a low Standard price, not when you need more than 3 automated escalations on the entry subscription plan.
Pros
- Free plan for up to 5 users
- Standard at $10 per user per month
- annual billing saves up to 20 percent
Cons
- Standard allows only 3 automated escalations
- status pages are an add-on on Standard and Premium
Squadcast
Best for: SRE teams that need on-call and incident response
Squadcast, now sold as SolarWinds Incident Response, is an on-call and incident response tool for site reliability and engineering teams. Pro starts at $15 per user per month billed annually, Premium starts at $24, and Enterprise is custom priced. The trial runs for 14 days with full features, and the notification limit on the trial is 100 phone and SMS messages combined.
- Premium adds status pages, runbooks, incident workflows and an SLO tracker, while Enterprise adds unlimited data retention, audit logs and AI-generate
- Notification limits are the main cost check on Pro.
- In the United States, India and Brazil, Pro includes 100 free notifications per user, with extra SMS or calls at $0.10 each, while in the rest of the
- Premium and Enterprise include unlimited SMS and voice notifications.
Pros
- Pro at $15 per user per month on annual billing
- Premium at $24 per user per month with unlimited SMS and voice
- 14-day trial with full features
Cons
- No free plan listed on the current pricing page
- Enterprise is custom priced
- Pro notification allowance is capped per user
Everbridge
Best for: Large employers that need mass notification and risk intelligence
Everbridge is the mass notification and critical event management platform in this list, aimed at large employers, public safety teams and global operations. Everbridge 360 AI is sold in Core, Pro and Enterprise packages, and it combines risk intelligence, automated response and mass notification so one team can spot a risk, send an alert and run the response plan from the same place. It supports two-way messaging.
- The main limit is price transparency.
- Everbridge shows no list price on its official site, so the starting price here is quote only, and the final cost depends on the contact count, the mo
- Choose Everbridge when you need to reach thousands of people at once, with risk intelligence and travel risk in the same contract, not when you need a
Pros
- Everbridge 360 AI in Core, Pro and Enterprise packages
- risk intelligence, response management and mass notification in one platform
Cons
- No list price shown on the official site
- no free plan and no trial listed
AlertMedia
Best for: Employers that need emergency alerts and threat intelligence
AlertMedia sends alerts by SMS, email, voice and mobile app, and adds threat intelligence and travel risk as separate modules. Pricing is custom for each customer, there are no setup fees, and onboarding and training are included in the subscription. Support response times are under 10 minutes, and there is no stated limit on users.
- Integrations listed include WhatsApp, Slack, Microsoft Teams, Workday, Okta and SAP Concur.
- No published price means you cannot budget from the site alone.
- Threat intelligence and travel risk are separate solutions, so a full-suite scope costs more than mass notification alone, and you should ask for each
- Choose AlertMedia for fast support, no setup fees and a modern emergency communication tool for a mid-size or large employer, not when you need a visi
Pros
- Custom pricing by module with no setup fees
- support response times under 10 minutes
- add as many users as needed
Cons
- No list price shown on the official pricing page
- no free plan and no trial listed
How we chose
We chose tools that page the right person, run escalations or reach a large group at once, and that are still sold as a current product on 2026-11-12. We did not test any tool hands-on. Prices and plan limits come from official vendor pricing pages opened on 2026-11-12, and we wrote quote only where the vendor shows no list price. We left out Opsgenie because Atlassian will shut down standalone Opsgenie on April 5, 2027.
Which tool fits your team size and budget
| Team or need | Pick | Starting cost to budget |
|---|---|---|
| 5 users or fewer, on-call only | AlertOps Free or ilert Free | $0 for up to 5 users |
| 5 to 10 users, on-call with phone alerts | OnPage | $13.99 per user per month on annual billing |
| 10 users, on-call with workflows | AlertOps Standard | $10 per user per month |
| 10 users, incident response with AI actions | PagerDuty Starter platform | $2,800 per year for 10 seats |
| Large IT team, incident orchestration | xMatters Base | $39 per user per month, with status pages only on Advanced |
| Whole workforce, emergency alerts | AlertMedia or Everbridge | quote only, with no setup fees stated for AlertMedia |
Frequently asked questions
How much does critical communication software cost?
Entry prices run from $0 on a free tier for up to 5 users to $21 per user per month for PagerDuty Professional on annual billing. OnPage starts at $13.99, xMatters at $15, Squadcast at $15, ilert at $19 and AlertOps at $10. Everbridge and AlertMedia are quote only, so get a written quote that states the contact count and the modules included.
Which is best for a small on-call team?
AlertOps Free and ilert Free are the best starting points for a team of up to 5 users, because both cost $0 and cover basic alerting and on-call scheduling. OnPage is the best low-cost subscription pick at $13.99 per user per month on annual billing when you need persistent alerts that repeat for up to 8 hours. Move to PagerDuty Professional at $21 when you need a larger integration set.
Which is best for reaching a whole workforce in an emergency?
AlertMedia and Everbridge are the best picks for mass notification, because both are built to reach thousands of people at once by SMS, voice, email and app push, with two-way confirmation. AlertMedia states no setup fees and support response times under 10 minutes. Everbridge adds risk intelligence in its Everbridge 360 AI packages in Core, Pro and Enterprise.
Do any of these tools have a free plan?
Yes. PagerDuty, xMatters, ilert and AlertOps each offer a free plan for up to 5 users. OnPage offers a 7-day trial, and Squadcast offers a 14-day trial with full features. Everbridge and AlertMedia offer no free plan and no trial on their pricing pages.
What happens to Opsgenie?
Atlassian will shut down standalone Opsgenie on April 5, 2027, and is moving customers to Jira Service Management. That is why Opsgenie is not in this list. If you still use Opsgenie, start a move now to PagerDuty, xMatters, ilert, OnPage, AlertOps or Squadcast, and check your current integrations before you switch.
Sources
- https://www.pagerduty.com/
- https://www.pagerduty.com/pricing/
- https://www.xmatters.com/
- https://www.xmatters.com/pricing
- https://www.ilert.com/
- https://www.ilert.com/pricing
- https://www.onpage.com/
- https://www.onpage.com/pricing/
- https://www.alertops.com/
- https://alertops.com/pricing/
- https://www.squadcast.com/
- https://www.squadcast.com/pricing
- https://www.everbridge.com/
- https://www.alertmedia.com/
- https://www.alertmedia.com/pricing/
Prices and features were read on each company’s own website in November 2026. They change often, so confirm the current offer on the official site before you sign up or buy.