Pricing

Free is plenty. Pro is for when one project becomes a hundred.

Free gives you a customized task manager with a 5-session history. Pro adds regression, drift, baseline-health and a session deep-dive.

Free

Live monitoring with a rolling 5-session history.

$0 forever
Download now
  • Live CPU / RAM / disk / network / GPU charts
  • Gaming overlay with FPS + System Information
  • Floating mini monitor & pop-out terminal
  • Hard CPU & RAM caps (Job Object throttling)
  • Stack auto-detection, Git overview & ambih CLI
  • Rolling 5-session history + compare 2 runs
  • Baseline from your last 3 sessions
  • Peak alerts (CPU 80%+ sustained)
Most popular

Pro

Everything in Free, plus the performance-analysis layer.

$8.00 /mo

Billed monthly

$20.00 /3 mo

$6.67/mo · billed every 3 months

$65.00 /yr

$5.42/mo · billed yearly

Payments are coming soon

We’re still wiring up checkout. In the meantime, Pro is available free: request it from your account.

Get Pro free
  • Unlimited session history per project
  • Unlimited session comparison with trend verdict
  • Deeper baseline: last 10 sessions + Health verdict
  • Spike & drift detection with severity badges
  • Cross-session regression verdict (robust z-score)
  • Gate CI on performance: ambih verify fails the build on regression
  • GPU & VRAM folded into the regression verdict
  • Session deep-dive: Compared to last 9
  • Project history trend charts with annotated anomalies
  • Launch-phase segmentation & analysis
  • Custom alerts: spike, drift & regression

Enterprise

For teams: volume licensing, invoicing and priority support.

Custom per-seat · billed annually
Contact us
  • Per-seat licensing with volume pricing
  • Invoice or PO billing, not just card
  • Priority support with a direct contact
  • Shared regression context for the team (on the roadmap)
Buy once

Or buy it once

Lifetime

Pay once. This version is yours to keep. No subscription.

$199.00 one-time

A future major version is a separate purchase. No renewal, no subscription.

  • Every Pro feature, in this version
  • Yours forever. No renewal, no expiry
  • Works offline, on every machine you own
  • Bug-fix updates for this version included

The math behind Pro

Real statistical methods. Not vibes, not "AI-powered."

The same family of tools sysadmins have trusted for decades. No black boxes, no proprietary scoring.

Spike detection

score = MAD × 1.4826   (scaled MAD-z)

Catches sudden departures from steady-state. The 1.4826 scale makes MAD comparable to stddev, the same 3σ convention every analyst already uses.

3σ threshold · rolling 60 samples

Memory drift

Shigh(i) = max(0, Shigh(i-1) + (xi − μ − k))

One-sided CUSUM. Wakes up on slow leaks no single sample ever reveals. Welford warm-up estimates the target + sigma before the alarm arms.

Welford warm-up · 60 samples

Cross-session regression

Theil–Sen line + robust z-score

Fits a robust trend through prior runs (handles natural project growth), scores the latest against the residuals. Sign-aware, Bonferroni-capped: only the worst-deviating metric fires.

≥ 5 sessions required

Baseline

median + scaled MAD   (not mean + stddev)

Per-metric weighted score: RAM 1.5× · CPU 1.0× · Disk 0.7× · Net 0.5×. Improvements never count toward a regression.

outlier-robust by design

Full comparison

Free vs Pro, side by side.

Every feature, no surprises in the small print.

Capability Free Pro
Live CPU / RAM / disk / network charts
GPU & VRAM monitoring (per project)
Gaming overlay: CPU / RAM / GPU / FPS
System Information page
Floating mini monitor
Hard CPU & RAM caps
Stack auto-detection & Git overview
ambih CLI (launch, monitor, diff, verify)
Session history per project 5 sessions Unlimited
Session comparison 2 runs · averages Unlimited · trends & charts
Baseline analysis Last 3 sessions Last 10 + Health verdict
Project History trend charts
Spike detection (scaled MAD-z)
Memory drift detection (CUSUM)
Cross-session regression verdict
GPU & VRAM in the regression verdict
Session deep-dive (Compared to last 9)
Launch-phase segmentation & analysis
Bell notifications Peak alerts (CPU 80%+ sustained) Custom alerts (spike, drift, regression)
Anonymized industry benchmarks Coming soon
Cloud sync across machines Coming soon

Pricing questions

Anything else?

Can I cancel any time?
Yes. Cancel from your Account → Billing page. Your Pro features stay on until the end of the period you already paid for, then quietly revert to Free.
Do you offer refunds?
Yes. 14-day refund, no questions asked, on your first payment. Contact us from the same address you registered with.
What happens to my data if I downgrade?
Nothing is deleted. Once you’re back on Free, only the most recent 5 sessions per project stay visible in the UI; older sessions are retained and become visible again the moment you re-upgrade.
Can I buy Pro outright instead of subscribing?
Yes. The Lifetime license is a one-time payment for the current version. You get every Pro feature, kept forever, with no renewal. Bug-fix updates for that version are included; a future major version is a separate purchase.
Do you offer team or enterprise plans?
Yes. For per-seat volume pricing, invoicing and priority support, use the Teams & enterprise option above to get in touch. Per-developer Pro stays the default for individuals.
What payment methods are accepted?
Card payments via Stripe (Visa, Mastercard, American Express). Integration is being finalised: check back when you see the Subscribe button go live, or sign up now and we’ll email you when payment is wired in.