Free pre-client audit

Your app works on your laptop. Do not discover breakage on the client call.

The spinner never resolves. The screen goes empty. An error gets swallowed and Sentry stays quiet. Leaptr finds those breaks in a real session and hands you a graded report you can paste into Cursor before the next meeting.

No card required. One script tag. For Lovable, Bolt, and Cursor builders with a demo this week. Pre-client audit

Other tools answer different questions.

PostHog shows what users did. Sentry shows what threw. Leaptr shows what silently failed before your client sees it, and what to change next.

PostHog

What did users click, scroll, and drop off on?

Sentry

What exception was thrown, and where?

Leaptr

What silently broke with no exception, and how do I fix it before the call?

You lose sight the moment a paying client arrives.

It works on your laptop: fast wifi, fresh data, a short session. On the demo, none of that holds. The failures stay silent. Existing tools do not close that gap.

01

It is no longer one user. Many people hit the app at once. Race conditions and duplicate submissions show up that solo testing never can.

02

Slow is not forgiven. A client will not wait through a hang. They refresh, get nothing, and leave, often without saying why.

03

Failures are silent. Spinners that never resolve. Empty screens. Swallowed errors. You never see them on your machine.

Tests catch what you predict. Clients do not.

Synthetic suites run in sandboxes with clean data. Real clients hit edge cases under conditions you cannot stage on a laptop.

Synthetic testsLeaptr (real sessions)
EnvironmentSandbox, clean dataProduction, real data
NetworkSimulated or fastActual mobile networks
User behaviorPre-scripted pathsUnpredictable real flows
DurationSeconds per testHours of real sessions
CatchesRegressions you anticipateSilent failures you never knew existed

What your client would hit, and what to fix before the meeting.

Not more charts. Not hundreds of replays to scrub by hand. A clear diagnosis with a path to the fix.

Silent failures named

Spinner never resolves. Empty 200. Swallowed error with no UI change. Dead click that never fires a request.

Graded report

A to F grade for the session. Prioritized findings. Evidence tied to the route your client would hit.

Agent fix before the call

Every report ends with a prioritized prompt you paste into Cursor or Claude Code and ship before the next demo.

How it works: Leaptr correlates loading state, network outcome, and whether the screen settles. No request or response bodies. Emails, tokens, and keys are redacted before data leaves the browser.

From snippet to fix prompt before the next call.

Self-serve. No sales call. From account to graded report in one sitting.

Create a free account

Sign up at /app. Free to start. No card.

Create a project

Get a copy-paste snippet with your ingest key.

Install the collector

One script tag. Works in Lovable, Bolt, and Cursor-built apps.

Use the app for about 15 seconds

A real session streams in. Or run a synthetic test if traffic is not live yet.

Open report, copy fix

A to F grade, prioritized findings, and an agent-ready prompt. Re-run after you ship.

Install in under two minutes.

Sign up, create a project, and drop the collector into your authenticated app. Use your host and ingest key from the dashboard.

Script tag
API config
<script src="https://YOUR-HOST/collector.js"
        data-endpoint="https://YOUR-HOST/api/ingest"
        data-key="YOUR_INGEST_KEY"
        data-domain="app.example.com"></script>

Self-hosting? Set YOUR-HOST to your Leaptr origin (e.g. ).

No live traffic yet?

Run a headless synthetic test from the API. Leaptr logs in, navigates, and returns a graded report.

POST /api/test
Authorization: Bearer <token>
{ "url": "https://app.example.com/dashboard",
  "auth": { "username": "u", "password": "p" } }

Real difference: Synthetic tests help you validate fixes. Real user sessions reveal problems you did not know existed. See the test gap

Full agent loop in API and agents

Built for builders with a demo this week, not dashboard analysts.

Analytics toolsSession replayLeaptr
Question they answer"What did users do?""What did one user do?""What silently broke, and how do I fix it before the call?"
PostureAnalystWatcherPre-client audit
Who it's forTeams with analystsTeams with time to watch replaysFounders and agencies shipping client apps
What you do with outputRead charts, guessWatch recordings, guessPaste fix into your agent and ship

Why not build it from scratch?

You could wire Playwright, ingest pipelines, silent-failure rules, and agent prompts yourself. Here is what that actually costs.

Build yourselfLeaptr
Time to first auditMonths wiring infra, auth, storageMinutes with one snippet
Silent failure detectionCustom rules per failure typeNamed silent failures shipped
Reports and agent outputHand-rolled grading and promptsA to F report + agent fix prompt
Ongoing maintenanceBrowser APIs, collectors, analyzersMaintained as a product

Spend your time on the product your client will see, not rebuilding another monitoring stack.

Start free. Upgrade when the report is saving demos.

Every plan includes graded reports and silent failure detection. Free shows your top 3 findings so you can prove Leaptr catches what tests missed. Pro adds the full report and agent fix prompts for every handoff.

Free
$0
Prove it before the next client call
  • 1 project
  • 50 sessions / month
  • Top 3 findings (see if tests missed them)
Start free audit
Popular
Pro
$29/ month
Full reports before every handoff
  • 10 projects
  • 2,000 sessions / month
  • Full reports + agent prompts
Start Pro
Business
$99/ month
High volume across many client apps
  • Unlimited projects
  • 20,000 sessions / month
  • Everything in Pro
Start Business

Integrate and deploy without a sales call.

Quick reference, API details, agent workflows, and deployment guides.

The sentence every builder knows

My app works for me. I have no idea what it will do on the client call. I only find out when they freeze or leave.

No card to start. Cancel anytime on paid plans. Free audit before your next meeting.

  • Never collects request or response bodies
  • Redacts emails, tokens, and API keys client-side
  • Server re-applies redaction as a backstop
  • Built for founders with a demo this week

Walk into the next demo without discovering breakage live.

One script tag. Graded report. Fix prompt for your coding agent. No card required.

Start free audit