--- title: Istio Reviews meta\_title: 'Istio Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 19 reviews by the users' company size, role or industry to find out how Istio works for a business like yours. aggregate\_rating: rating\_value: 4.2 review\_count: 19 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Cloud Security url: https://www.g2.com/categories/cloud-security --- # Istio Reviews & Product Details Istio‚Äôs traffic routing rules let you easily control the flow of traffic and API calls between services. Istio simplifies configuration of service-level properties like circuit breakers, timeouts, and retries, and makes it easy to set up important tasks like A/B testing, canary rollouts, and staged rollouts with percentage-based traffic splits. It also provides out-of-box failure recovery features that help make your application more robust against failures of dependent services or the network. * * * Seller [Banzai Cloud](https://www.g2.com/sellers/banzai-cloud) Discussions [Istio Community](https://www.g2.com/products/istio/discuss) Overview by Scicom Icta Show More ## Top-Rated Alternatives [ ![HAProxy](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "HAProxy") HAProxy 4.7/5(912) ](https://www.g2.com/products/haproxy/reviews) [ ![Traefik](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Traefik") Traefik 4.6/5(35) ](https://www.g2.com/products/traefik/reviews) [ ![HashiCorp Consul](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "HashiCorp Consul") HashiCorp Consul 4.3/5(23) ](https://www.g2.com/products/hashicorp-consul/reviews) [ View All Alternatives ](https://www.g2.com/products/istio/competitors/alternatives) ## User Insights Average based on 19 real user reviews. [Log in to unlock pricing and user insights](/login) ![Santhosh B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Santhosh B.") SB Santhosh B. Cloud Engineer Small-Business (50 or fewer emp.) 6/24/2021 "Secure Microservice Communication with Room for Simplification" 4.5/5 What do you like best about Istio? I use Istio to secure east-west traffic between my microservices, ensuring that only legitimate traffic flows between them and blocking unwanted traffic. I appreciate that it enables mutual TLS, providing additional security. I like the way Istio allows connectivity between microservices, especially as we transition from traditional three-tier web architecture to microservices architecture. It also offers both security and tracing capabilities, which are crucial. Also, while Kiali was helpful before, now I find Jaeger does a great job. Review collected by and hosted on G2.com. What do you dislike about Istio? Initially, Istio was not easy to set up. Also, the way Istio injected the Envoy proxy into every microservice was hogging the microservices and caused high resource utilization. They could also work on simplifying the complexity, similar to how Linkerd is. Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? I use Istio to secure microservices by ensuring only legitimate traffic flows between them. It enables mutual TLS for added security and helps with traffic tracing, which is crucial when transitioning to microservice architecture. Review collected by and hosted on G2.com. Show More 3/31/2026 Validated ReviewerIncentivizedSource: Thank You page ![Pasquale M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Pasquale M.") PM Pasquale M. Devops Manager Enterprise (\> 1000 emp.) 3/18/2026 "Istio Makes Zero-Trust Security and Observability Effortless" 4/5 What do you like best about Istio? What engineers love about Istio in 2026 is how it moves complex networking logic out of the application code and into the infrastructure layer transparently. Zero-Trust Security & Observability: It provides automatic mTLS encryption and deep "Golden Signal" metrics (latency, errors, traffic) for every service-to-service interaction without touching a single line of your code. Ambient Mode Efficiency: The shift to sidecar-less "Ambient Mode" significantly reduces resource overhead and operational friction, finally making enterprise-grade traffic management lightweight and easy to maintain. Review collected by and hosted on G2.com. What do you dislike about Istio? Its primary drawback is the crushing operational complexity and steep learning curve required to manage its vast array of Custom Resource Definitions (CRDs) and troubleshooting layers. The significant resource overhead of sidecar proxies—injecting extra CPU/RAM usage and millisecond latency—can become a "service mesh tax" that outweighs benefits for smaller architectures. Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? Istio solves the "microservices sprawl" problem by offloading complex networking, mTLS security, and real-time observability from your application code into a unified infrastructure layer. It benefits you by providing a standardized control plane that replaces fragmented Nginx sidecars, eliminating the "EOL" manual configuration burden of legacy ingress controllers for modern traffic. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Verified User in Information Technology and Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Information Technology and Services") UI Verified User in Information Technology and Services Mid-Market (51-1000 emp.) 7/26/2026 "Istio: A Powerful Service Mesh for Kubernetes and Distributed Systems" 4.5/5 What do you like best about Istio? The best about Istio is it is a service mesh application used for kubernetes and other systems with distributed ecosystem Review collected by and hosted on G2.com. What do you dislike about Istio? The dislike about Istio is it adds more operational complexity and it also consumes heavy resources Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? The problem that Istio solves for me is centralized traffic management in my distributed system where my application is hosted. Review collected by and hosted on G2.com. Show More Our network of Icons are G2 members who are recognized for their outstanding contributions and commitment to helping others through their expertise.G2 IconCurrent UserValidated ReviewerSource: G2 invite ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications") UT Verified User in Telecommunications Mid-Market (51-1000 emp.) 5/31/2024 "Istio - Observability Simplified" 5/5 What do you like best about Istio? With Istio kubernetes oprtator it is easy to deploy in any kubernetes cluster and it provides end to end traffic visibility and it has core features like traffic amangement and security. Istio sidecar proxy container will be injected to the pod without any modification in the application we run. Review collected by and hosted on G2.com. What do you dislike about Istio? Due to istio installation addition overload to the cluster in terms of resource availablity but that justifies the performance and use case Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? it decouples the observabilty and security from the application code make developer to focus on qulaity of code Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![rafayel j.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "rafayel j.") RJ rafayel j. Research Assistant (Machine /Deep Learning and Data Science) Mid-Market (51-1000 emp.) 7/12/2021 "Rafayel's G2 review on Istio product" 4.5/5 What do you like best about Istio? Managing microservices Traffic Forwarding Service Discovery Review collected by and hosted on G2.com. What do you dislike about Istio? The complexity of kube-proxy route forwarding function in each pod increasing response latency — due to more hops when the sidecar intercepts the traffic and consuming more resources Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? Microservice Segmentation Security Access control Traffic Segmentation Kubernetes Policy Review collected by and hosted on G2.com. Show More 7/14/2021 Current UserValidated ReviewerSource: Organic ![Prabakaran A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Prabakaran A.") PA Prabakaran A. Senior Engineer Enterprise (\> 1000 emp.) 9/3/2021 "Open source micro-service service discovery for Enterprise ready" 4/5 What do you like best about Istio? Istio with Kubernetes sidecar will make the micro-service service discovery go to the next level. It comes with the following logging tools pre-configured with, 1. Prometheus 2. Jaegar 3. Kiali 4. Grafana It supports advance newtwork traffing control, 1. dns routing with conditions 2. traffic limiting for micro-service 3. mutal tls between micro service to micro service Review collected by and hosted on G2.com. What do you dislike about Istio? Istio is not a light service discovery; the learning curve is steep. Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? Solved Micro-service service discovery, we have used istio-ingress over Kubernetes-ingress. For security concerns, we even needed mutual transport layer security for micro-service to micro-service communication For security concerns, we even bear tokens [jwt token] for micro-service to micro-service communication. For scalability concerns, we need an auto-scaled Kubernetes cluster, istio done a great job finding micro-service in clusters Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Arindam B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Arindam B.") AB Arindam B. Lead Cloud and AI Consultant Enterprise (\> 1000 emp.) 7/9/2021 "best service mesh in the market today" 5/5 What do you like best about Istio? I like traffic managment, rate limiting via envot proxy ,fault injection,cicuit breaking,request routing etc. Review collected by and hosted on G2.com. What do you dislike about Istio? Istio should be compatiable with other ingress controllers , right now its only Istio gateway. Adoption is also very slow. Moreover istio should come as add on to kubernetes cluster . More over managing istio is an overhead, app mesh from aws is better maanged solution. Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? We are getting multiple benifits Zero code for logging and monitoring Great Service Mesh Great flexibility custom Ingress controller Resiliency Easy integration with Kubernetes and Docker Full Security Powerful authorization mechanisms Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Banking](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Banking") AB Verified User in Banking Enterprise (\> 1000 emp.) 9/21/2021 "Istio : The Service Mesh Kubernetes Needs!!!" 4.5/5 What do you like best about Istio? Traffic Management and security would be the top two features out of the many available. Review collected by and hosted on G2.com. What do you dislike about Istio? A little complicated to set up if you are not well versed with the specific terminology used by the tool. Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? Canary releases and traffic management are the two most important problems we have solved with Istio. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Saiteja O.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Saiteja O.") SO Saiteja O. Software Engineer-II Devops (Platform-Engineer) Enterprise (\> 1000 emp.) 6/19/2021 "Out of the box support for your microservices" 4.5/5 What do you like best about Istio? Gives insight into network performance . Manages traffic with ease Simplifies load balancing. Easily deploy applications using kubernetes Review collected by and hosted on G2.com. What do you dislike about Istio? Setting up is difficult. Time consuming to setup the complete process Requires a high level understanding of micro service architecture Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? Production level performance has been highly imporved. Easy setting up the traffic. Canary deployment Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Internet](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Internet") AI Verified User in Internet Small-Business (50 or fewer emp.) 7/31/2021 "I'm very happy to use Istio to manage my cluster" 4/5 What do you like best about Istio? tracing, traffic management, and fault injection Review collected by and hosted on G2.com. What do you dislike about Istio? The deployment is a bit tricky on a private GKE cluster with NAT gateway Review collected by and hosted on G2.com. Recommendations to others considering Istio: do plenty of research before you use istio. But once you start, it is very helpful Review collected by and hosted on G2.com. What problems is Istio solving and how is that benefiting you? I use Istio to get more insights into the traffic flows within my cluster. And I can use Istio to practice Chaos Engineering within the cluster Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ## Questions about Istio? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Istio ](https://www.g2.com/products/istio/discussions/new) GU Guest User What is Istio used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-istio-used-for) [ View all Discussions ](https://www.g2.com/products/istio/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. 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