Trusted Advisor says “consider rightsizing.”
CostPatrol gives you the exact command.
AWS Trusted Advisor is the starting point. CostPatrol is what comes after — 100+ expert-encoded rules, exact CLI commands, and Slack delivery.
| Feature | CostPatrol | AWS Trusted Advisor |
|---|---|---|
| Recommendations | Exact CLI commands with dollar amounts | "Consider rightsizing" (vague) |
| Delivery | Daily Slack digest | AWS Console (you go to it) |
| Coverage | 111 rules across 30+ services | ~20 checks (Basic), more with Business/Enterprise Support |
| Anomaly detection | Statistical baselines, catches spikes in hours | Basic threshold alerts |
| Cost | From $99/mo (free under $5K) | Free (Basic) / requires $100+/mo Business Support for full checks |
| Setup | 2-min CloudFormation | Already enabled (but limited) |
| Actionability | Copy-paste fix commands | Manual investigation required |
What Trusted Advisor misses
GP2 → GP3 EBS volume migration
GP3 volumes are 20% cheaper than GP2 with the same or better performance. Trusted Advisor does not check for this. CostPatrol flags every GP2 volume with the exact aws ec2 modify-volume command and the monthly savings.
Lambda ARM64 / Graviton optimization
AWS Graviton-based Lambda functions are 20% cheaper and often faster than x86. Trusted Advisor does not check Lambda architecture. CostPatrol identifies x86 functions eligible for ARM64 migration.
Orphaned EBS snapshots
Snapshots from deleted volumes that continue accumulating charges. Trusted Advisor checks for unattached volumes, but not for orphaned snapshots that reference volumes which no longer exist.
CloudWatch Logs retention waste
Log groups set to "Never expire" accumulating storage charges indefinitely. CostPatrol flags log groups with excessive retention and provides the exact aws logs put-retention-policy command.
NAT Gateway cross-AZ data transfer
Data transfer is the most underestimated cost driver on AWS. NAT Gateways processing traffic across availability zones add $0.01/GB in cross-AZ charges on top of the standard $0.045/GB processing fee. VPC Endpoints eliminate the NAT Gateway charge entirely for supported services. At scale, this is thousands of dollars in avoidable spend. Trusted Advisor does not analyze NAT Gateway traffic patterns or recommend VPC Endpoints as a replacement.
Over-provisioned Lambda memory
Lambda functions allocated 4x the memory they actually use. CostPatrol analyzes actual memory usage and recommends the right-sized configuration with the exact update command.
Zombie infrastructure
Unattached EBS volumes, orphaned load balancers, and idle dev/staging environments that were never torn down are one of the biggest sources of invisible waste in 2026. These "zombie assets" run indefinitely because no alert fires — the resource exists and looks healthy. Trusted Advisor checks for a handful of idle resources but misses the long tail of forgotten infrastructure. CostPatrol systematically surfaces zombie assets across all scanned services.
Dev/staging environment noise
Trusted Advisor scans your entire AWS account indiscriminately — production, staging, QA, and dev alike. This inflates finding counts with low-priority noise from non-production environments and makes it harder to act on what actually matters. (PeerSpot 2026 user reviews)
Security Hub integration gaps
The integration between Trusted Advisor and AWS Security Hub is unreliable for some users — findings don't always surface where expected, forcing manual cross-checking between services. (PeerSpot 2026 user reviews)
Memory metrics require a separate agent
Trusted Advisor cannot surface EC2 memory utilization without the CloudWatch agent installed on each instance. This is a non-trivial operational requirement that most teams don't have uniformly in place, leaving memory oversizing invisible to the tool. (PeerSpot 2026 user reviews)
AWS-only coverage
Trusted Advisor has no multi-cloud support. If your infrastructure spans AWS and Azure or GCP — even partially — Trusted Advisor gives you zero visibility into non-AWS waste. (PeerSpot 2026 user reviews)
The real cost of “free”
Time cost of vague recommendations
Trusted Advisor says "consider rightsizing." Your engineer opens the console, investigates the instance, checks CloudWatch metrics, determines the right size, writes the CLI command, tests it. That's 15-30 minutes per recommendation. CostPatrol gives you the exact command and dollar amount — copy, paste, save. If your team spends 4+ hours/month investigating Trusted Advisor recommendations, the time cost at $100/hr already exceeds $99/mo.
Blind spots cost more than tools
Industry research puts wasted cloud spend at 30–40% of total cloud budget. (SquareOps 2026) Compute — which accounts for 50–70% of AWS spend — sees 60–70% of instances oversized. Storage tells the same story: 20–30% of storage costs come from stale or unattached resources. Only 39% of organizations have real-time visibility into orphaned resources using native tools alone. (Harness FinOps in Focus 2025) One missed idle RDS instance at $500/mo costs $6,000/year. That is more than 6 years of CostPatrol Pro.
Console vs. Slack
Trusted Advisor requires logging into the AWS Console. Nobody checks the console daily for cost recommendations. CostPatrol delivers ranked findings to your team's Slack channel every morning — where engineers already work. Findings you don't see are findings you don't fix.
Frequently asked questions
Is AWS Trusted Advisor free?
AWS Trusted Advisor Basic is free and includes a limited set of checks. Full Trusted Advisor checks require AWS Business Support ($100+/mo) or Enterprise Support. Even with full checks, Trusted Advisor provides vague recommendations like "consider rightsizing" without specific CLI commands or dollar amounts per resource.
What are the limitations of AWS Trusted Advisor?
Trusted Advisor has limited service coverage (~20 checks on Basic), provides vague recommendations without actionable fix commands, requires logging into the AWS Console (no Slack delivery), has basic threshold alerts instead of statistical anomaly detection, and does not check for GP2-to-GP3 migration, Lambda ARM64 optimization, orphaned snapshots, CloudWatch log retention waste, NAT Gateway cross-AZ charges, or zombie assets. It also scans dev/staging environments alongside production (adding noise), requires the CloudWatch agent for EC2 memory metrics, has unreliable Security Hub integration, and has no multi-cloud coverage.
Do I need a third-party AWS cost tool if I have Trusted Advisor?
Trusted Advisor is a starting point, not a solution. Only 39% of organizations have visibility into orphaned resources using native tools alone (Harness 2025). CostPatrol's 100+ expert-encoded rules catch waste that Trusted Advisor misses — and deliver exact CLI fix commands to Slack instead of vague console recommendations. If your team spends 4+ hours/month investigating Trusted Advisor's vague recommendations, the time cost already exceeds $99/mo.
What does CostPatrol find that Trusted Advisor misses?
CostPatrol catches GP2-to-GP3 EBS volume migration (20% savings), Lambda ARM64/Graviton optimization, orphaned EBS snapshots, CloudWatch Logs retention waste, NAT Gateway cross-AZ data transfer (and recommends VPC Endpoints at $0.045/GB savings), over-provisioned Lambda memory, previous-generation instance types, idle Aurora clusters, S3 buckets without lifecycle policies, and zombie assets like unattached EBS volumes, orphaned load balancers, and idle dev environments. Every finding includes the exact CLI command, resource ARN, and dollar amount.
See what Trusted Advisor misses
100+ expert-encoded rules. Exact CLI commands. Slack delivery. Free under $5K/mo spend.