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Surveys · head to head

Formstack vs Kissmetrics

Formstack logo

Formstack

Surveys

Form builder with document generation and e-signature

From
On request
Free plan
No
Full reviewWebsite
Kissmetrics logo

Kissmetrics

Marketing

Customer analytics and behavioral data

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Kissmetrics has a free tier, so it costs nothing to try first.
  • Each has a real cost: Formstack more expensive than form builders that only collect, which is the fair comparison for simple use; Kissmetrics overages are added automatically to the next invoice rather than blocked, so exceeding an event allowance bills without a decision point
  • They diverge on capability: Formstack covers Form builder, Kissmetrics covers Customer analytics.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Formstack and Kissmetrics actually diverge.

Attributes where Formstack and Kissmetrics differ
AttributeFormstackKissmetrics
Starting priceOn requestFree
Pricing modelTiered monthly subscription published on the vendor site; HIPAA-capable plans priced separatelyfreemium
Free tierNoYes
PlatformsWeb, CloudWeb
CategorySurveysMarketing
FoundedUnknown2009

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Formstack

  • Form builder
  • Document generation
  • E-signature
  • Workflow routing
  • Salesforce integration
  • Compliance features

Only in Kissmetrics

  • Customer analytics
  • Behavioral tracking
  • Cohort analysis
  • Funnel analysis
  • Salesforce
  • GDPR
  • Cloud deployment
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Formstack

  • Processes where a submitted form must become a signed documentnot Kissmetrics
  • Regulated intake needing HIPAA-capable handlingnot Kissmetrics
  • Salesforce shops wanting forms and documents inside the CRMnot Kissmetrics

Kissmetrics

  • Product analytics and user behavior trackingnot Formstack
  • Event-based analyticsnot Formstack
  • Data integration and reportingnot Formstack

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Formstack

  • More expensive than form builders that only collect, which is the fair comparison for simple use
  • Document generation and signature sit in higher tiers, so the headline price is not the working price
  • The interface has accumulated features over a long life and shows it
  • Overkill where a form only needs to collect an answer

Kissmetrics

  • Overages are added automatically to the next invoice rather than blocked, so exceeding an event allowance bills without a decision point
  • The free plan allows 100,000 events a month
  • Per event rates fall with volume, from $0.20 per 1,000 events on Growth to $0.10 on Gold, so smaller customers pay double per event
  • The vendor states Growth, Silver and Gold are the identical product, so the paid tiers differ only in unit price and volume
  • Anything above 5 million events is custom priced

Pricing, plan by plan

Formstack

On request

No published plan breakdown. See the Formstack review.

Kissmetrics

Free
  • FreeFree
    • 100,000 events/month
    • Autocapture tracking
    • AI chat
  • Growth$99/month
    • Starting at 500k events
    • $0.20 per 1k events
    • Populations
  • Silver$null/month
    • $0.15 per 1k events
    • All Growth features
  • Gold$null/month
    • $0.10 per 1k events (at 5M+ events)
    • All Growth features

Which should you pick?

Choose Formstack if

  • You need form builder.
  • You work on Web, Cloud.
  • You also want document generation.
Formstack review

Choose Kissmetrics if

  • You need customer analytics.
  • You want to start without paying.
  • You also want behavioral tracking.
Kissmetrics review

Questions people ask

Is Formstack or Kissmetrics better?
Neither clearly leads. Formstack starts at On request and Kissmetrics at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formstack or Kissmetrics?
Kissmetrics has a free tier; the other does not. Paid plans start at On request for Formstack and Free for Kissmetrics.
Does Formstack or Kissmetrics run on more platforms?
Formstack runs on Web, Cloud. Kissmetrics runs on Web.
Can I use Kissmetrics for free?
Yes. Kissmetrics has a free tier, so you can try it without paying. Formstack starts at On request.
What is Formstack best used for?
Formstack is most often used for processes where a submitted form must become a signed document, regulated intake needing hipaa-capable handling, salesforce shops wanting forms and documents inside the crm. Of those, processes where a submitted form must become a signed document and regulated intake needing hipaa-capable handling are not what Kissmetrics is typically brought in for.
What can Formstack do that Kissmetrics cannot?
Formstack covers Form builder, Document generation, E-signature, Workflow routing. Kissmetrics covers Customer analytics, Behavioral tracking, Cohort analysis, Funnel analysis.

Answered from the vendors’ own pages

Formstack: What does Formstack cost?

It publishes tiered monthly pricing; document generation and e-signature sit in higher tiers, and HIPAA-capable plans are priced separately.

Kissmetrics: Does KISSmetrics have a free plan?

Yes, KISSmetrics offers a free plan with 100,000 events/month including autocapture tracking, dashboards, and core reports. No card required.

Source
Formstack: What makes it different from a plain form builder?

It generates documents from submissions and collects signatures on them, which is the step that otherwise involves retyping form data into a template.

Kissmetrics: What does KISSmetrics charge for paid plans?

Growth plan starts at $99/month for 500k events, charging $0.20 per additional 1k events. Silver and Gold tiers offer lower per-event rates at higher volumes.

Source
Formstack: Is it HIPAA compliant?

It offers HIPAA-capable plans for regulated data. That is a plan-level feature, not the default.

Kissmetrics: Does KISSmetrics offer annual discounts?

Yes, annual plans receive 20% off monthly rates. Overage charges are automatically added to the next invoice.

Source
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