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HashiCorp Consul vs Istio comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 9, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

HashiCorp Consul
Ranking in Service Mesh
8th
Average Rating
7.6
Reviews Sentiment
6.9
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Istio
Ranking in Service Mesh
1st
Average Rating
8.2
Reviews Sentiment
7.6
Number of Reviews
11
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2025, in the Service Mesh category, the mindshare of HashiCorp Consul is 5.5%, down from 6.1% compared to the previous year. The mindshare of Istio is 22.9%, up from 22.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Service Mesh
 

Featured Reviews

Phanindra Sangers - PeerSpot reviewer
Has an efficient key vault feature, but its integration capabilities need enhancement
I recommend HashiCorp Consul for beginners. It is a stable tool. The key-vault storage feature has significantly enhanced our configuration management process. We have maintained the secret software applications in the vault and retrieved the information from Kv. I rate the product a seven out of ten. It is good open-source software to be managed within the production.
JETTI DINESH REDDY - PeerSpot reviewer
Enhanced microservice security and advanced traffic management and good authentification
When our developers are building the microservices, instead of imposing additional burdens or additional thinking on them, especially as part of network features such as traffic management, security, or observability, we deploy something from the infrastructure side, so developers need only focus…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"HashiCorp Consul's most valuable feature is the automation of many processes, which limits the errors from user interaction."
"The product's most valuable features are support for Service Mesh TLS and canary deployment."
"The documentation is good."
"Istio provides tremendous value, particularly in offering TLS and authentication over microservice-to-microservice communication."
"We use Istio for Service Discovery and routing traffic."
"The tool's mutual TLS stands out. It provides secure communication between services within the cluster. Additionally, Istio offers built-in telemetry and tracing with tools like Jaeger, which aids monitoring and troubleshooting."
"Istio can save you time in terms of network troubleshooting."
"The load balancing, service application, and monitoring of the life of the service are valuable features. We use it for authentication of call services, load balancing the calls among the service providers on service instances, and monitoring the health of the services."
"The security feature with mutual TLS authentication, which is identity-based, and the traffic management using cloud load balancers are very valuable."
"What I find particularly valuable about Istio is that it is free of cost."
"Istio makes all that much easier - traffic splits, percentage traffic splits, doing some sort of chaos testing to see how it works."
 

Cons

"The command line of HashiCorp Consul could be more intuitive to make it easier to use."
"They could improve issues related to triggering generic deployments for the platform."
"Health check outputs are delayed sometimes."
"If you're a beginner in infrastructure management and networking, learning Istio might pose some challenges. However, if you have some knowledge of networking or service meshes, you should find it manageable. Istio's website offers documentation to guide you through learning."
"Istio's documentation is basic and would benefit from more examples."
"It would be good if the solution had more community forums."
"I've seen applications where they had such strict time constraints, they couldn't use Istio because it was too much overhead."
"If someone doesn't understand Kubernetes, they'll have issues working with Istio."
"Istio has issues with performance."
"For our use case that we applied it to, there were graph queues and the calls that were coming in. There were the things that we couldn't apply at the time, but it kind of worked."
"Reducing the latency between the control plane and the data plane would be beneficial."
 

Pricing and Cost Advice

"In case of budget constraints, we opt for the product's business support licenses and use an open-source version"
"We use the tool's open-source version, so there are no hidden fees or additional costs associated with it."
"You can deploy Istio free of cost and don't need to pay for it."
"It is on the less expensive side. It provides a significant saving for us in terms of cost and other things. It is open-source. We just download it from the open-source framework and use it."
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Top Industries

By visitors reading reviews
Financial Services Firm
30%
Computer Software Company
13%
Manufacturing Company
13%
Government
6%
Computer Software Company
19%
Financial Services Firm
18%
Manufacturing Company
9%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about HashiCorp Consul?
The product's most valuable features are support for Service Mesh TLS and canary deployment.
What needs improvement with HashiCorp Consul?
They could improve issues related to triggering generic deployments for the platform. We have raised multiple support cases. They could enhance the integration approach with Service Mesh tools. Add...
What advice do you have for others considering HashiCorp Consul?
I recommend HashiCorp Consul for beginners. It is a stable tool. The key-vault storage feature has significantly enhanced our configuration management process. We have maintained the secret softwar...
What is your experience regarding pricing and costs for Istio?
Istio provides a significant saving for us in terms of costs since it is open source. However, Istio can still come at a price. It has a steep learning curve and might require more manpower hours ...
What do you like most about Istio?
We use Istio for Service Discovery and routing traffic.
What needs improvement with Istio?
I do not see much room for improvement in Istio for my project as it currently fits my needs perfectly. It would be beneficial if Istio offered paid support options, similar to AWS's enterprise sup...
 

Comparisons

 

Overview

Find out what your peers are saying about HashiCorp Consul vs. Istio and other solutions. Updated: March 2025.
842,296 professionals have used our research since 2012.