Softwr

Networking · head to head

Kentik vs ngrok

Kentik logo

Kentik

Networking

Network observability platform built on flow and traffic data, sold on annual-only contracts starting around $24,000/year

From
On request
Rated
-
Full reviewWebsite
ngrok logo

ngrok

Networking

Reverse tunnel service that gives a local or private service a public URL without opening a firewall

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only ngrok has a free tier, so it costs nothing to try first.
  • Each has a real cost: Kentik contracts are annual only, so there is no monthly option for a team wanting to trial the platform under real production load before committing to a year of spend; ngrok free HTTP endpoints show a browser interstitial before the page loads, which breaks first impressions in demos and confuses anyone you send the link to.
  • They diverge on capability: Kentik covers Flow-based traffic analysis, ngrok covers Outbound agent tunnels.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Kentik and ngrok actually diverge.

Attributes where Kentik and ngrok differ
AttributeKentikngrok
Starting priceOn requestFree
Pricing modelAnnual contract only, per tierPer user per month
Free tierNoYes
PlatformsWeb, APILinux, macOS, Windows, Docker, Kubernetes

Identical on both: user rating (Not yet rated), category (Networking).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Kentik

  • Flow-based traffic analysis
  • Synthetic testing
  • Cloud network monitoring
  • DDoS detection
  • API-driven querying

Only in ngrok

  • Outbound agent tunnels
  • Static domains
  • Traffic policy
  • Request inspection
  • Kubernetes ingress
  • TCP and TLS endpoints

What people use each for

The jobs each tool is most often brought in to do.

Kentik

  • A network engineering team at an ISP or large enterprise needing flow-level traffic visibility beyond basic uptime monitoringnot ngrok
  • A cloud-heavy organisation wanting visibility into cloud provider network cost and performance across multiple providersnot ngrok
  • A security or network operations team wanting DDoS detection layered on top of standard traffic monitoringnot ngrok
  • A team needing synthetic testing alongside passive flow analysis in one platform rather than two separate toolsnot ngrok

ngrok

  • Receiving webhooks from a payment or messaging provider on a laptop during developmentnot Kentik
  • Demonstrating a work in progress application to someone outside the network without deploying itnot Kentik
  • Publishing a service inside a private network or Kubernetes cluster without a public load balancernot Kentik
  • Giving a partner a temporary authenticated endpoint into an internal APInot Kentik

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Kentik

  • Contracts are annual only, so there is no monthly option for a team wanting to trial the platform under real production load before committing to a year of spend
  • The Pro tier's $24,000/year starting price is a serious commitment relative to general infrastructure monitoring tools, and it is aimed specifically at flow-level traffic visibility rather than general host monitoring
  • Add-on modules for advanced DDoS protection, service provider analytics and the Firehose pipeline are priced separately, so real deployment cost frequently exceeds the Pro sticker price
  • Premier tier pricing is entirely quote-based, so organisations needing more than Pro's limits (50 users, 1,000 FPS, 120-day retention) cannot get a number without a sales conversation
  • It is a specialised flow and traffic analytics tool, not a general infrastructure monitoring platform, so most buyers will still need a separate tool like PRTG or Icinga for host and service uptime checks
  • Data retention is capped at 120 days for traffic and 45 days for forensic data even on Pro, which may be short for organisations with longer compliance or investigation requirements

ngrok

  • Free HTTP endpoints show a browser interstitial before the page loads, which breaks first impressions in demos and confuses anyone you send the link to.
  • All traffic passes through ngrok infrastructure, so you inherit its latency and an ngrok incident takes every published endpoint down at once with no local failover.
  • Pricing is per user seat plus allowances, so a platform team publishing many endpoints ends up buying seats for people who never open the dashboard.
  • Bandwidth is metered on paid tiers, so a workload that quietly grows into serving real traffic produces overage rather than a flat bill.
  • Traffic policy configuration is specific to ngrok, so the authentication and routing logic you accumulate at the edge has to be rebuilt if you later move to a conventional ingress.

Pricing, plan by plan

Kentik

On request
  • Pro$24000/year
    • 50 users
    • 1,000 flows per second baseline
    • 2.5M synthetics credits
  • Premier$undefined/year
    • 1,000 users
    • 5M synthetics credits
    • Custom dimensions and scheduled reporting

ngrok

Free
  • FreeFree
    • One static domain
    • HTTP endpoints with a browser interstitial
    • Limited simultaneous connections
  • Personal$undefined/month
    • Removes the interstitial warning page
    • Additional reserved domains
    • TCP endpoints
  • Pro$undefined/month
    • Per user billing with team accounts
    • Traffic policy rules and edge authentication
    • Higher bandwidth allowances
  • Enterprise$undefined/year
    • Custom terms and volume pricing
    • Dedicated capacity options
    • Compliance and audit requirements

Which should you pick?

Choose Kentik if

  • You need flow-based traffic analysis.
  • You work on Web, API.
  • You also want synthetic testing.
Kentik review

Choose ngrok if

  • You need outbound agent tunnels.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want static domains.
ngrok review

Questions people ask

Is Kentik or ngrok better?
Neither clearly leads. Kentik starts at On request and ngrok at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kentik or ngrok?
ngrok has a free tier; the other does not. Paid plans start at On request for Kentik and Free for ngrok.
Does Kentik or ngrok run on more platforms?
Kentik runs on Web, API. ngrok runs on Linux, macOS, Windows, Docker, Kubernetes.
Can I use ngrok for free?
Yes. ngrok has a free tier, so you can try it without paying. Kentik starts at On request.
What is Kentik best used for?
Kentik is most often used for a network engineering team at an isp or large enterprise needing flow-level traffic visibility beyond basic uptime monitoring, a cloud-heavy organisation wanting visibility into cloud provider network cost and performance across multiple providers, a security or network operations team wanting ddos detection layered on top of standard traffic monitoring, a team needing synthetic testing alongside passive flow analysis in one platform rather than two separate tools. Of those, a network engineering team at an isp or large enterprise needing flow-level traffic visibility beyond basic uptime monitoring and a cloud-heavy organisation wanting visibility into cloud provider network cost and performance across multiple providers are not what ngrok is typically brought in for.
What can Kentik do that ngrok cannot?
Kentik covers Flow-based traffic analysis, Synthetic testing, Cloud network monitoring, DDoS detection. ngrok covers Outbound agent tunnels, Static domains, Traffic policy, Request inspection.

Answered from the vendors’ own pages

Kentik: Is there a monthly billing option?

No, Kentik states contracts are annual only.

ngrok: Can I use it in production?

It is sold for that now, with static domains, policy rules and a Kubernetes operator. The question is whether you accept a third party on the traffic path for every request.

Kentik: What is the entry price?

Pro starts at $2,000/month billed as $24,000/year for 50 users and baseline flow and synthetics quotas.

ngrok: Why does my free URL show a warning page?

Free HTTP endpoints carry an interstitial. Removing it requires a paid plan, and it is the most common reason people upgrade.

Kentik: Does Kentik replace general infrastructure monitoring tools like PRTG?

No, it is focused on flow-based traffic and network observability rather than general host and service uptime monitoring.

ngrok: Does it work for SSH or a database?

Yes through TCP endpoints, which are a paid feature.

ngrok: What is the self hosted alternative?

A reverse proxy on a server you own with a tunnel back to the service, or one of the self hosted tunnel projects. All of them cost more setup time than the thing they replace.

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