Reliably vs AWS Fault Injection Service

Reliably8.7Visit AWS Fault Injection Service8.4Visit

Higher score Reliably #6 in Chaos Engineering Platforms 8.7/10 Free plan Free plan✓ 5 of 5 features Visit Reliably

vs

AWS Fault Injection Service #9 in Chaos Engineering Platforms 8.4/10 Paid ✓ 5 of 5 features Visit AWS FIS

• Reliably fits best

  Teams wanting a guided chaos management layer

• AWS Fault Injection Service fits best

  AWS-native controlled fault injection

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Side by side

Feature	Reliably 8.7/10 Visit ↗	AWS Fault Injection Service 8.4/10 Visit ↗
At a glance
Editor score	8.7	8.4
Ranking	#6 in Chaos Engineering Platforms	#9 in Chaos Engineering Platforms
Best for	Teams wanting a guided chaos management layer	AWS-native controlled fault injection
Pricing model	Free plan + paid	Paid
Starting price	£40/mo	$0.10/unit usage-based
Free plan	✓ (best)	Not checked yet
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web, Windows, Linux	Web, Windows, macOS, Linux
Support	Email, Docs	Docs
Built for	Small business, Mid-market, Enterprise	Mid-market, Enterprise
Features Reliably 5/5 · AWS Fault Injection Service 5/5
Kubernetes support	✓	✓
Cloud fault injection	✓	✓
Network fault injection	✓	✓
Experiment scheduling	✓	✓
Blast-radius controls	✓	✓
Specs
Deployment model	Hybrid	Cloud
Our review
Pros	More than 300 actions and probes for experiment design Runs through cloud, GitHub Actions, CLI, Docker, and Kubernetes Free plan includes unlimited custom and GitHub executions	Preconfigured faults across AWS services, networking, storage, and databases EKS pod injection plus one-time and recurring experiment scheduling Safety levers, alarm stop conditions, and multi-account experiments
Cons	Free plan is limited to one team member Free plan includes only five custom experiments Start limits cloud execution to 300 minutes per month	Usage costs vary with action minutes, accounts, and reports Experiment reports require a customer-provided CloudWatch Dashboard Experiment Scheduler is unavailable in AWS GovCloud regions
Our verdict	Reliably is a resilience engineering platform for software and operations teams that need to plan, run, schedule, and review Chaos Toolkit experiments. Its experiment builder, reusable templates, JSON import, execution journals, timelines,… Read the review →	AWS Fault Injection Service is a managed chaos engineering service for teams running workloads on AWS. It lets teams define experiment templates with actions, targets, and stop conditions, then run or schedule controlled fault-injection… Read the review →

Strengths and trade-offs

• Reliably — where it wins

  • More than 300 actions and probes for experiment design
  • Runs through cloud, GitHub Actions, CLI, Docker, and Kubernetes
  • Free plan includes unlimited custom and GitHub executions

  Where it doesn't

  • Free plan is limited to one team member
  • Free plan includes only five custom experiments
  • Start limits cloud execution to 300 minutes per month

• AWS Fault Injection Service — where it wins

  • Preconfigured faults across AWS services, networking, storage, and databases
  • EKS pod injection plus one-time and recurring experiment scheduling
  • Safety levers, alarm stop conditions, and multi-account experiments

  Where it doesn't

  • Usage costs vary with action minutes, accounts, and reports
  • Experiment reports require a customer-provided CloudWatch Dashboard
  • Experiment Scheduler is unavailable in AWS GovCloud regions

• Reliably8.7/10 · Free plan

  A guided chaos management layer with broad execution options and a free entry tier.

  Visit ReliablyFull verdict →
• AWS Fault Injection Service8.4/10 · Paid

  A focused AWS service for controlled resilience experiments with usage-based pricing.

  Visit AWS FISFull verdict →