Model your architecture as a graph. Change one input and watch money propagate through every connected service — all the way to your monthly AWS bill.
Traffic flows through your architecture like a real system. A CloudFront cache hit means fewer ALB requests, fewer EC2 cycles, fewer database queries. We model the cascade.
Double your traffic and see exactly where costs spike. Change your cache hit ratio from 80% to 95% and watch downstream costs plummet. One slider, full impact.
Know exactly what each API call costs you — broken down by variable vs fixed components. See how per-request cost drops as you scale.
Interactive topology diagram showing every service, connection, and traffic flow. Click any node to configure it. Click any edge to adjust the flow.
EC2 auto-scaling groups calculate instance count from your traffic. Set a threshold, define min/max, and the engine figures out how many instances you'll actually run.
The hidden killer. Cross-AZ, cross-region, internet egress — we calculate the real data transfer costs between every service pair in your architecture.
Every other tool prices services in isolation. We model how they connect.
Add services — ALB, EC2, RDS, CloudFront, Lambda, and more. Configure each with real parameters (instance types, storage, cache ratios).
Define how traffic moves: CloudFront → ALB → EC2 → RDS. Set metrics ratios and network contexts (same-AZ, cross-AZ, internet).
Costs calculate instantly. Per-service, per-request, at different scales. Change anything and watch costs cascade through the entire graph.
Start free. Upgrade when you need to save, share, and go beyond 5 services.
No account required
or $149/year (save 35%)
Contact us for pricing