Side by side
IIS Application Request Routing (ARR) vs Loadbalancer.org Enterprise
Both stand on load balancing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
Visit IIS Application Request Routing (ARR) 
Free trial APILinuxSelf-hosted+1
Choose Loadbalancer.org Enterprise if your organization needs an ADC with regional traffic distribution, multiple deployment types, and integrated security controls. Look elsewhere if you need a free plan or if the VA Basic throughput and SSL TPS limits do not fit your workload.
Visit Loadbalancer.org EnterpriseThe facts
| IIS Application Request Routing (ARR) | Loadbalancer.org Enterprise | |
|---|---|---|
| Free plan | Yes | A free trial |
| Open source | Not published | No |
| Runs on | Windows | API, Linux, Self-hosted, Web |
| Lowest paid plan | Not published | Enterprise VA Basic subscription: $150 a month |
| Plans published | None | 12 |
| Maker | Not published | Not published |
| Website | iis.net | loadbalancer.org |
| On load balancing software | #13 of 32 | #9 of 32 |
IIS Application Request Routing (ARR): what it does well
Loadbalancer.org Enterprise: what it does well
- Routes application traffic at Layers 4 and 7 with health checks.
- Supports active-active and active-passive global failover.
- Offers hardware, virtual appliance, and cloud appliance deployments.
- Includes WAF protections and customizable rules.
- Integrates with Prometheus, Grafana, and infrastructure automation tools.
What to know first
- No free plan is offered.
- VA Basic lists 400Mbps throughput and 400 SSL TPS.
- The listed trial lasts 30 days.
Alternatives to IIS Application Request Routing (ARR) Alternatives to Loadbalancer.org Enterprise The whole list