Early access — first 100 users get 50% off forever

Your AWS bill just spiked.
Did you notice?

StackAlert sends your team a Slack message the moment AWS costs spike — before the bill arrives. For teams spending $1k–$20k/month on AWS.

StackAlert
App · just now
#aws-costs
⚠️ Cost Spike Detected — EC2 (eu-west-1)

Your EC2 spend jumped +312% in the last 6 hours compared to your 7-day average.

7-day avg
$18.40/d
Today
$75.20
Culprit
i3.2xlarge

Real Slack notification · Sent within 6 hours of the spike

GDPR · EU data residency Read-only IAM · open-source Lambda 60-second setup · no YAML
The problem

AWS billing tools were built for enterprise.
Not for your team.

Small teams get the same tools as Fortune 500 companies — dashboards with 200 settings, email alerts that arrive too late, and a $500/month minimum.

"

A few years ago my startup was killed by an AWS mistake that ran overnight. We had no idea until the bill arrived.

Hacker News · 2023 · 847 upvotes
"

AWS billed me 700% more than expected after an RDS version upgrade. I only found out at the end of the month.

Hacker News · Dec 2025

The tooling gap is huge:

😤
AWS Native
Free but clunky. Email-only. No Slack. No context. Alerts arrive too late.
StackAlert
✨
€4–39/month
Slack alerts with context. No dashboards. 60-second setup.
🏢
CloudZero / nOps
$500–$2,000/month. Built for 100+ engineer orgs.
Why StackAlert

AWS cost control that lives in Slack.

Instant spike alerts with context.

The moment any service spends 50%+ more than its 7-day average, your team gets a Slack message — with the culprit service, the extra cost, and a link to investigate. Not just "something happened."

Daily digest.

Every morning: yesterday's spend, top 5 services, vs. last week. 30 seconds to read, zero dashboards to open.

Read-only & auditable.

One CloudFormation template deploys a read-only IAM role. The Lambda is open-source on GitHub — audit exactly what we access.

EU data residency. GDPR compliant.

All data processed and stored in AWS Frankfurt (eu-central-1). No US data transfer. German-language support available. CloudZero, Spot.io, and nOps are US-only — StackAlert is built for European teams.

Setup

Up and running in 60 seconds.

No YAML. No dashboards. No agents to install.

1

Connect your AWS account

Click the CloudFormation link. A read-only IAM role is created in your account in under 30 seconds. No credentials to manage — just an ARN to paste.

aws cloudformation deploy --template-url stackalert-role.yaml
2

Add StackAlert to Slack

One OAuth click. Choose which channel gets alerts. Done. Your team is now connected — no Slack app deployment required.

3

Get alerted when it matters

Every 6 hours, StackAlert checks your spend against your baseline. If anything spikes, your team gets a Slack message — with context, not just a number.

"I've spent 10 years managing AWS infrastructure. I've seen teams lose thousands to runaway Lambda functions, forgotten NAT gateways, and dev environments left running over a long weekend. I built StackAlert because AWS Budgets doesn't cut it — and no one should pay $500/month for basic cost awareness."
Alex Z.
AWS DevOps Engineer · Hamburg, Germany
Pricing

Simple, transparent pricing.

Early access: 50% off for first 100 users. Locked in forever.

Alle Preise inkl. MwSt. · All prices include VAT

Solo
1 AWS account, 1 user
€9 €4 /month
Early access price
  • 1 AWS account
  • Spike alerts in Slack
  • Daily digest
  • 6-hour check interval
Join waitlist
Most popular
Team
3 AWS accounts, 5 users
€29 €14 /month
Early access price
  • 3 AWS accounts
  • Up to 5 Slack users
  • Per-tag & per-service alerts
  • 1-hour check interval
  • Monthly report PDF
Join waitlist
Studio
10 accounts, unlimited users
€79 €39 /month
Early access price
  • 10 AWS accounts
  • Unlimited Slack users
  • Custom alert thresholds
  • 15-min check interval
  • Priority support (DE/EN)
Join waitlist
Early access

Be the first to know when we launch.

Join the waitlist and get 50% off forever as a founding member. Targeting Q2 2026.

Or email: hello@stackalert.app

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FAQ

Frequently asked questions.

Is it safe to give StackAlert access to my AWS account?
Yes. StackAlert uses a read-only IAM role — it can only read Cost Explorer data, never make changes. The exact Lambda function is open-source on GitHub. We follow least privilege: the role is scoped to only the Cost Explorer API calls we need.
What AWS services does StackAlert monitor?
All AWS services by default — EC2, RDS, Lambda, S3, CloudFront, Data Transfer, and everything else. You can configure alerts per service, per region, or per resource tag. The daily digest always shows your top 5 cost drivers.
I already have AWS Budgets set up. Why do I need this?
AWS Budgets sends emails when you cross a monthly threshold — that's too late. StackAlert checks every 6 hours, detects unusual patterns early, and delivers context (which service, which region, what changed) directly in Slack where your team already works.
Is my billing data stored in the EU? (GDPR)
Yes. All data is processed and stored in AWS Frankfurt (eu-central-1). We are GDPR compliant and do not transfer data outside the EU. A Data Processing Agreement (DPA / AVV) is available on request.
When will StackAlert launch?
We're targeting Q2 2026. Waitlist members get access first and lock in the 50% early access pricing. We'll send one email when it's ready — no spam in between.

Stop finding out about AWS spikes
from your invoice.

Join the waitlist — 50% off forever as a founding member.

Get early access — free
Get early access — free