Softwr

Networking · head to head

Kentik vs OpenWrt

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
OpenWrt logo

OpenWrt

Operating Systems

Linux firmware replacement for routers and embedded network devices, with a package manager and writable filesystem

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only OpenWrt 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; OpenWrt support is per device and per hardware revision, so a model number that worked last year may point at a different chipset this year and be unsupported.
  • They diverge on capability: Kentik covers Flow-based traffic analysis, OpenWrt covers Package manager.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Kentik and OpenWrt actually diverge.

Attributes where Kentik and OpenWrt differ
AttributeKentikOpenWrt
Starting priceOn requestFree
Pricing modelAnnual contract only, per tierOpen source, no licence fee
Free tierNoYes
PlatformsWeb, APIRouters, Access points, x86-64, ARM, MIPS, Embedded gateways
CategoryNetworkingOperating Systems

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

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 OpenWrt

  • Package manager
  • LuCI web interface
  • Traffic shaping
  • VPN and DNS
  • VLAN and multi-network
  • OpenWrt One

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 OpenWrt
  • A cloud-heavy organisation wanting visibility into cloud provider network cost and performance across multiple providersnot OpenWrt
  • A security or network operations team wanting DDoS detection layered on top of standard traffic monitoringnot OpenWrt
  • A team needing synthetic testing alongside passive flow analysis in one platform rather than two separate toolsnot OpenWrt

OpenWrt

  • Extending the useful life of an ISP-supplied router that has stopped receiving security updatesnot Kentik
  • Separating guest, IoT and work devices onto VLANs on hardware that does not offer it nativelynot Kentik
  • Running WireGuard, ad blocking or DNS over TLS at the edge rather than configuring every clientnot Kentik
  • Building small industrial or retail gateways where a full Linux distribution is too heavynot 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

OpenWrt

  • Support is per device and per hardware revision, so a model number that worked last year may point at a different chipset this year and be unsupported.
  • Flashing can brick a device permanently, and on hardware without a serial console or a recovery bootloader there is no way back.
  • Devices with 4MB or 8MB of flash have been dropped from recent releases, so a lot of older hardware is stuck on unsupported versions with known vulnerabilities.
  • Hardware acceleration for NAT and routing depends on vendor drivers, and enabling traffic shaping frequently cuts a gigabit connection to a fraction of its rated throughput.
  • A sysupgrade keeps your configuration but not your installed packages, so every release upgrade is followed by reinstalling and reconfiguring add-ons by hand.

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

OpenWrt

Free
  • OpenWrtFree
    • No licence fee for any device count
    • All packages from the official feeds
    • Community support via forum and wiki

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 OpenWrt if

  • You need package manager.
  • You want to start without paying.
  • You work on Routers, Access points, x86-64, ARM, MIPS, Embedded gateways.
  • You also want luci web interface.
OpenWrt review

Questions people ask

Is Kentik or OpenWrt better?
Neither clearly leads. Kentik starts at On request and OpenWrt at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kentik or OpenWrt?
OpenWrt has a free tier; the other does not. Paid plans start at On request for Kentik and Free for OpenWrt.
Does Kentik or OpenWrt run on more platforms?
Kentik runs on Web, API. OpenWrt runs on Routers, Access points, x86-64, ARM, MIPS, Embedded gateways.
Can I use OpenWrt for free?
Yes. OpenWrt 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 OpenWrt is typically brought in for.
What can Kentik do that OpenWrt cannot?
Kentik covers Flow-based traffic analysis, Synthetic testing, Cloud network monitoring, DDoS detection. OpenWrt covers Package manager, LuCI web interface, Traffic shaping, VPN and DNS.

Answered from the vendors’ own pages

Kentik: Is there a monthly billing option?

No, Kentik states contracts are annual only.

OpenWrt: How do I know my router is supported?

Check the Table of Hardware for your exact model and revision before buying or flashing. Do not assume that a supported model number means a supported unit; manufacturers change chipsets within a model.

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.

OpenWrt: Is the OpenWrt One worth buying over a used router?

If you are evaluating OpenWrt rather than rescuing hardware you own, yes. It is supported by definition, has an unbrickable boot arrangement, and part of the price funds the project.

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.

OpenWrt: Will flashing void my warranty?

Almost always, and it may also break the ISP remote management your provider relies on for support. Keep the stock firmware image before you start.

OpenWrt: Is opkg still the package manager?

It is in the current stable releases, but development has moved towards apk, so expect package tooling and command syntax to change at the next major release.

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