Trusted by 50+ early-access founders

Stop losing money to forgotten subscriptions

See exactly what you're spending. Get warned 7 days before every renewal. Cancel what you don't need.

Built for bootstrapped founders and small teams tracking $1K–$10K/month in SaaS.

14 days free · No credit card required

Built for founders
Not finance teams
Set up in 3 minutes
Just forward invoices
No bank connection
Invoices are enough

You're bleeding $300/month on tools nobody uses

The average startup wastes $4,200/year on forgotten SaaS. Don't be average.

Without Costrail
  • Renewals auto-charge without review
  • Seat counts grow quietly with the team
  • Trials convert to paid plans unnoticed
  • Price increases buried in invoices
  • Nobody knows who owns which tool
With Costrail
  • Alerts before every renewal
  • Spend updates automatically each month
  • Trial endings flagged in advance
  • Price changes detected and surfaced
  • Every subscription has a clear owner

You review and decide. Nothing changes without your approval.

Everything you need to stay on top of SaaS spend

Monthly Overview
$2,847
across 12 subscriptions
Figma$45
AWS$892
Slack$340
Notion$96
Linear$80
Spend Trend
+12%vs last month
JanDec
Upcoming Renewals
Figma
Jan 15
$45/mo
in 7 days
Notion
Jan 22
$96/mo
in 14 days
Slack
Feb 1
$340/mo
in 24 days
Linear
Feb 15
$80/mo
in 38 days
Recent Alerts
Slack price increased
$12.50 → $15.00 per seat
2 days ago
New subscription detected
Loom - $12.50/mo
5 days ago
AWS usage spike
+$127 from last month
1 week ago
Subscription Owners
Figma
SC
Sarah Chen
Design Lead
AWS
MR
Mike Rodriguez
CTO
Slack
You
You
Admin
Notion
AK
Alex Kim
Product

How it works

Set up in minutes. Stay informed automatically.

invoices@yourcompany.costrail.com
Figma Invoice - $45.00
Notion Invoice - $96.00
Slack Invoice - $150.00
Extracted details
Figma$45.00
MonthlyRenews Jan 15
Notion$96.00
MonthlyRenews Jan 22
Slack$150.00
MonthlyRenews Feb 1
Recent alerts
Monthly summary: $291.00 (+$25 from last month)
Figma renews in 7 days
Slack increased by $25/month
New subscription detected: Linear

A founder hygiene tool, not enterprise software

Simple visibility into recurring costs. Nothing more, nothing less.

What you see

  • Total monthly SaaS spend
  • Cost trends over time
  • Upcoming renewals and trial endings
  • Fixed vs usage-based costs
  • Owner assigned per subscription

What this is not

  • Not accounting software
  • Not FinOps or cloud optimization
  • Not a bank or card integration
  • Not expense management
  • No complex setup or onboarding

Costrail shows you what you're paying — and warns you before things slip.

Pricing

Costs less than the subscription you forgot to cancel.

MonthlyAnnualSave 20%

Solo Founder

$5/mo
  • Up to 20 subscriptions
  • Invoice forwarding
  • Renewal alerts
  • Monthly summary
Most popular

Small Team

$9/mo
  • Up to 50 subscriptions
  • Everything in Solo
  • Assign owners
  • Team access (3 seats)
  • Price change alerts

Unlimited

$15/mo
  • Unlimited subscriptions
  • Everything in Team
  • Unlimited team members
  • CSV export
  • Priority support

All plans include 14-day free trial. No credit card required. Cancel anytime.

Frequently Asked Questions

Everything you need to know about how Costrail tracks your subscriptions.

Costrail learns renewal dates from your invoices.

When you forward an invoice, we capture the billing period (monthly, annual, etc.). From that, we know when the next charge is expected and can warn you ahead of time.

Once a subscription pattern is confirmed, renewal alerts are automatic.

No.

Costrail does not require bank access, credit card access, or payment permissions.

Invoices are enough.

That's exactly why Costrail exists.

Renewal warnings are based on previous billing periods, not new emails. You're warned before the expected charge date, even if the vendor stays silent.

Yes. Always.

You can mark something as one-off, adjust renewal dates, change billing frequency, or disable alerts for a tool.

Manual input always wins — and you don't need to maintain it afterward.

No.

Costrail never cancels anything, never changes plans, and never touches your accounts.

It shows you what's happening before money is wasted. You decide what to do.

Costrail is built for bootstrapped founders, micro-SaaS businesses, and small teams (1–15 people).

If you want control without overhead, Costrail fits.

Costrail is not accounting software, cloud optimization, expense management, or procurement tooling.

It's a founder hygiene tool for recurring costs.

A few minutes.

Forward invoices once, and Costrail starts working in the background.

Stop the next surprise renewal

Forward your first invoice. See your spend in 5 minutes.

14 days free · No credit card required