SaaS Monitoring

Stop finding out about SaaS problems from your users

NotiLens monitors your signups, feature usage, payment events, and churn signals — alerting your team the instant something breaks or goes unexpectedly quiet.

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Works with your SaaS stack

Stripe

Mixpanel

Segment

Intercom

HubSpot

GitHub

Webhook

Silence Alert — acquisition

"No new signup in 4 hours."

Your funnel broke at 2am. Ad spend kept running. Nobody knew until standup. No error fired, no exception was logged — just silence where 12 signups an hour should have been.

signup-funnel · No signups for 4h · Last: 3:47 AM

Broken Flow — onboarding

"User registered. Never activated."

user.registered fired. user.activated never followed. 14 new users stuck at step 1 — silently churning before they ever saw your product's value.

user.registered → user.activated · 14 stuck · 6h window

Silence Alert — feature adoption

"Export hasn't fired in 6 hours."

Your export feature runs 40 times a day. After your last deploy — silence. It still loads, still renders, but it silently stopped working. No crash, no error, no Sentry event.

feature.export_csv · 0 fires · normally 40/day · since last deploy

Rate Anomaly — auth events

"Password resets 3× above normal."

Reset requests tripled in two hours. Possible auth degradation, possible credential stuffing — definitely worth knowing right now rather than discovering it in your support queue tomorrow.

auth.password_reset · 3× baseline · investigate immediately

Silent Failure — background job

"Cron job ran. Processed 0 records."

The job completed without errors. Logs show success. But it processed nothing — and that nothing cost you hours of missing data before anyone noticed anything was wrong.

daily-sync-job · status: completed · 0 of 500+ records processed

Loop Detected — AI workflow

"AI agent looped 14× with no progress."

Your autonomous agent is running — but cycling with no advancement. Without NotiLens, it burns through your API budget entirely undetected. You find out when the invoice arrives.

sales-agent · 14 loops · no output · API budget: 91% consumed

Silence Alert — payments

"No Stripe webhook in 3 hours."

Stripe is up. Your server is up. But webhook deliveries stopped arriving — and silent payment failures are compounding right now. Your revenue report will show the damage tomorrow.

stripe.payment_intent.succeeded · 0 received · normally 8/hr

Rate Anomaly — support queue

"Support tickets up 4× in 90 minutes."

Users are filing tickets faster than normal. This is a reliable early signal of a product issue — it shows up in your support queue before it shows in error logs or your analytics dashboard.

intercom.conversation.created · 4× baseline · possible product issue

The Problem

SaaS teams miss the signals that matter most

Your analytics tools show you trends. Your uptime monitor watches servers. But nobody is watching for the silence — and silence is what kills SaaS businesses quietly.

Signups dropped silently

Your acquisition funnel broke at 2am. No one knew until Monday standup. Four hours of zero signups — and your ad budget kept burning the entire time.

Onboarding flow broke silently

Users registered but never reached activation. user.registered fired. user.activated never followed. You saw the churn three weeks later and couldn't explain why.

Feature adoption cliff

A key feature quietly stopped firing after a deploy. No error. No Sentry alert. You found out during a customer interview three weeks later when someone said "that button doesn't work."

How NotiLens Helps

Built for SaaS teams who can't afford blind spots

NotiLens goes beyond uptime checks — it understands your business rhythms and alerts you the moment they break.

Signup funnel monitoring

Set expected signup rates per hour or day. Get alerted the moment traffic falls silent — before your support inbox fills up and before ad budget burns unnoticed.

MRR & churn anomaly detection

NotiLens tracks your Stripe events and flags sudden MRR drops, same-day churn spikes, or subscription pauses the moment they occur — not in next week's report.

Feature event tracking

Send feature usage events from your app, Mixpanel, or Segment. NotiLens detects when adoption drops below your baseline and fires an immediate real-time alert.

Broken flow detection

Define multi-step flows like trial.started → payment.completed. If step 2 never fires within your window, NotiLens alerts you before the revenue disappears silently.

Team alerting & on-call

Route signup alerts to growth, churn alerts to CS, and infra alerts to engineering. Everyone gets paged on what they own — with acknowledgement so nothing gets missed.

Acknowledgement (ACK)

Critical alerts repeat every 5 minutes until someone on your team acknowledges them. A signup drought at 3am won't go unnoticed until it's a crisis.

Real Alerts

What NotiLens sends your team

Precise, contextual, and actionable — pushed to your phone the moment it happens.

NotiLens Live Feed — SaaS

No new signups in 4 hours — normally 12/hr

Topic: signup-funnel • Silence threshold exceeded • 2 min ago

Critical

Onboarding broken — 9 users registered, 0 activated

Topic: onboarding-flow • Broken flow • user.registered → user.activated • 11 min ago

Critical

feature.export_csv silent for 6h — normally 40/day

Topic: feature-adoption • Silence alert • 34 min ago

Warning

Stripe webhook silent for 2h — 0 events received

Topic: stripe-webhooks • Silence threshold exceeded • normally 8/hr • 4 min ago

Critical

Silence is the most dangerous SaaS signal.

When signups stop, nothing fires in Mixpanel, Amplitude, or your uptime monitor. No error, no exception, no alert — because zero events means no data. NotiLens is built specifically to detect when expected events stop arriving and tell you immediately.

FAQ

My analytics look fine — how can something still be broken? +

Analytics tools only show you data that arrives. When your signup flow breaks silently, events stop firing — and a flat dashboard looks identical to a quiet afternoon. NotiLens watches for the absence of expected activity. ....?

How long does it take to set up signup funnel monitoring? +

Under 5 minutes. Connect Stripe via webhook for payment and subscription events — no code needed. For signup rates or feature usage, send events from your app using any of the 7 official SDKs (Python, Node.js, Go, Rust, Ruby, PHP, Java) or call the webhook endpoint directly. No infrastructure to manage, no YAML to write. The 7-day free trial starts the moment you connect your first integration — no credit card required.

Isn't this just an uptime monitor? +

No — uptime monitors check if your server responds with a 200. NotiLens watches business events: signups stopping, features going quiet, Stripe webhooks going silent, cron jobs completing with zero results. Your server can be 100% up, all green on every status page, while your signup funnel is completely broken and your ad budget is burning. That gap is exactly what NotiLens is built to catch.

Does NotiLens replace our analytics tool? +

No — and it's not trying to. Mixpanel, Amplitude, and Segment show you what happened after the fact. NotiLens tells you what just stopped happening and pushes you immediately. They solve different problems: analytics is for understanding trends, NotiLens is for catching failures the moment they occur. Most teams run both side by side.

Stop finding out from users. Start knowing first.

Set up in under 5 minutes. No credit card required — 7-day free trial.

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