KLM-VS Compare

Kalman vs Curve

Curve (Curve Compliance, by Curve Technologies) offers server-side ad tracking for healthcare organizations of every size, from single practices to multi-state networks. Kalman is built specifically for DTC telehealth on Meta: it sends the approvals, orders and refills from your telehealth platform, with a lifetime value, and shows what each approved patient costs.

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Kalman vs Curve at a glance

Kalman compared with Curve
AreaKalmanCurve
Built forDTC telehealth brands that buy patients on Meta, and the agencies that run their adsHealthcare organizations of every size, from single practices to telehealth and online pharmacy brands and multi-state networks
Conversion that optimizes your adsThe real outcome from your telehealth platform: purchase, refill and (with your consent setup) provider approval, each with a valueServer-side conversions from booking, intake and EHR tools such as IntakeQ, Calendly, Jane App and Healthie
Value sent with each conversionOrder value, projected lifetime value per program, or average lifetime value calculated from your refillsNot published
Telehealth platformsSylaris OS native today; Bask Health, Telegra and MDI through a webhook (native coming); Stripe directBask Health, Telegra, MDI and Stripe not listed; CRMs through incoming webhooks
What Meta receivesAn allowlist only: event, time, value, hashed IDs, click IDs and your site root. Every sent event is loggedServer-side conversions through the Conversions API
AnalyticsTraffic, intake funnel and cost per purchase and per approved patient by campaign, inside KalmanAttribution, call tracking, session replay and heatmaps
PricingPublished: $499 or $999 a month; agencies $0 platform fee, then per brandNot published. Usage-based plans (Compliance, Growth, Enterprise); book a call
BAAEvery customer, every plan, before any data flowsSigned BAA on every plan; custom BAA on Enterprise
Free site scanOn the home page, no call neededFree compliance scan of any public URL, plus a pixel scanner
Other ad platformsMeta today; Google Ads beta (Q1 2027); TikTok, Snap and Reddit comingGoogle Ads, TikTok, Microsoft Ads and LinkedIn
Consent bannerWorks with the consent tool you already useRegion-aware consent banners on Enterprise
SetupDone with you: one tag and one webhook per system, with a preview of every event before it goes liveSays Curve's team does setup and most customers are live in about a week

Curve details come from its own public pages, listed under Sources. “Not published” means we couldn’t find it there.

Key takeaways

  • Both send conversions server-side to Meta with a BAA. The difference is which conversions: Curve's integrations center on booking and intake tools; Kalman's on telehealth platforms and the outcomes after checkout.
  • Kalman attaches a lifetime value to each conversion and updates it from real refills. We couldn't find conversion valuation on Curve's public pages.
  • Kalman connects to Sylaris OS, Bask Health, Telegra, MDI and Stripe. Curve lists IntakeQ, Calendly, Jane App and Healthie instead.
  • Kalman publishes its prices; Curve's usage-based plans are quoted on a call.
  • Curve covers more ad platforms today (Google Ads, TikTok, Microsoft Ads, LinkedIn) and practice tools like call tracking and session replay.

What Kalman actually does

Kalman is a signal layer for direct-to-consumer telehealth brands that buy patients on Meta. It does three jobs, and it does them for the funnel telehealth brands actually run: an ad, a landing page, an intake, a checkout, a provider decision and then refills.

1. It tells Meta who actually became a patient

A browser pixel sees page views and form fills. It never sees what happens after checkout, because that happens on the telehealth platform: the provider approves the patient, the pharmacy ships, the refill bills next month. Kalman takes those outcomes straight from the platform (Sylaris OS natively today; Bask Health, Telegra and MDI through a webhook) and from Stripe, and sends them to Meta server-side through the Conversions API: purchases, refills as repeat purchases, and approvals when your consent setup allows it.

Each conversion carries a value you choose: the order value, a projected lifetime value per program, or the average lifetime value Kalman calculates from your real refills. Meta's value optimization then learns to find patients who stay, not just people who fill in a form.

2. It keeps health details out of what Meta receives

Every outbound event is built from an allowlist: the event name, the time, the value, hashed identifiers (email, phone, your patient ID), Meta's click and browser IDs, and your site's root address. Page paths that name a condition or a medication, product names and anything typed into a form never leave. Custom event names are checked against a list of condition and medication terms before they're allowed.

You don't have to take that on trust. Kalman keeps a log of every event it sent, and you can preview any event before a destination goes live. Every customer gets a BAA before any data flows.

3. It shows you what a patient really costs

Kalman's own analytics run inside Kalman, on your first-party data, so you don't need a third-party analytics tag on health pages to see the funnel: traffic by source, step-by-step intake drop-off, and acquisition with your Meta spend imported, so you see cost per purchase and per approved patient by campaign. That's the number a growth lead actually manages to.

Built around the telehealth stack

  • First-party by default. The tag runs on your own subdomain, keeps ad click IDs in a first-party cookie and carries them to your intake, so the approved patient is tied back to the ad that brought them.
  • A free scan before you talk to anyone. The scanner shows what each tracker on your site sends today, page by page, and what to fix first.
  • Published prices. Signal is $499 a month and Signal + Attribution is $999. Agencies pay a $0 platform fee and then per brand.
  • Built by an operator. Kalman's founder built NimbusRX and scaled Sylaris OS, so the product is designed around how telehealth funnels and their webhooks really behave.

What Curve offers

Curve describes server-side ad tracking and attribution for healthcare organizations of every size, including a page for telehealth and online pharmacy brands. Its integrations page lists booking, intake and EHR tools such as IntakeQ, Calendly, Jane App and Healthie, a Keragon connection and incoming webhooks for CRMs. It sends conversions to Meta through the Conversions API and lists Google Ads, TikTok, Microsoft Ads and LinkedIn.

Its plans (Compliance, Growth and Enterprise) are usage-based and quoted on a call, each with a signed BAA. It also offers call tracking, session replay, heatmaps, forms, a free compliance scan and an agency page describing one dashboard across clients and white-label reports. It says its team does setup and most customers are live in about a week.

Where Kalman and Curve really differ

Booking events vs telehealth outcomes

For a practice, the booked appointment is the conversion, and Curve's integrations are built around booking and intake tools. For a DTC telehealth brand, the outcome comes later: the provider's approval, the shipped order and the refill, all on the telehealth platform. Kalman is built to capture exactly those and send them to Meta, so campaigns optimize on patients rather than bookings or form fills.

Lifetime value on every conversion

Kalman sends a projected lifetime value per program and replaces it with the average it calculates from your real refills. For subscription treatments like GLP-1 or TRT, that's what lets Meta find patients who stay. We couldn't find how Curve values conversions on its public pages.

Telehealth platforms and Stripe

Kalman connects natively to Sylaris OS, to Bask Health, Telegra and MDI through a webhook, and to Stripe directly. Those aren't listed on Curve's integrations page, which centers on scheduling and practice tools.

What you can verify

Kalman sends Meta an allowlist (event, time, value, hashed IDs, click IDs, site root) and keeps a log of every event it sent, with a preview before any destination goes live. When a client or their counsel asks what left the building, you can show them the exact events.

Pricing and agencies

Kalman's prices are published, and agencies get a $0 platform fee with per-brand pricing and a 20% referral program. Curve's agency page describes multi-client dashboards and white-label reports; its plans and partner pricing are quoted on a call.

Which one fits your business?

Choose Kalman if you:

  • run a DTC telehealth brand on Sylaris OS, Bask Health, Telegra, MDI or Stripe, or the agency behind one;
  • want Meta optimizing on approvals and refills with lifetime value, not bookings or form fills;
  • want to see cost per approved patient by campaign;
  • prefer published pricing over a quote.

Curve may be the better fit if you:

  • run practices where the conversion is a booked appointment in tools like Calendly, Jane App or IntakeQ;
  • need Google Ads, TikTok, Microsoft Ads or LinkedIn conversions today;
  • want call tracking, session replay or heatmaps from the same vendor.

FAQ

Is Kalman a Curve alternative for telehealth?

Yes, for DTC telehealth brands running Meta. Kalman is built around telehealth platforms and the outcomes after checkout, with lifetime value on every conversion. Practices whose conversion is a booking may find Curve's scheduling integrations a closer fit.

How much does Curve cost?

Curve's plans are usage-based and quoted on a call; its prices aren't published. Kalman's are on the pricing page.

Does Kalman support Google Ads, TikTok or LinkedIn?

Meta is live today. Google Ads conversions are in beta (Q1 2027), and TikTok, Snap and Reddit are coming.

Can I switch from Curve to Kalman?

Yes. Install Kalman's tag and connect your telehealth platform's webhook, preview the events, then switch Meta over so only one tool sends conversions.

Do I get a BAA?

Yes. Every Kalman customer signs a BAA before any data flows, on every plan.

The bottom line

Curve is a broad server-side tracking tool for healthcare practices and organizations across many ad platforms. Kalman is the focused choice for DTC telehealth on Meta: it sends the approvals, orders and refills from your telehealth platform with a lifetime value, shows cost per approved patient, and publishes its prices.

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Sources

Something out of date? Email [email protected] and we'll correct it.

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