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Surveys · head to head

Formstack vs WebEngage

Formstack logo

Formstack

Surveys

Form builder with document generation and e-signature

From
On request
Free plan
No
Full reviewWebsite
WebEngage logo

WebEngage

Marketing

Customer engagement and retention automation for consumer businesses in India and Southeast Asia

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Formstack more expensive than form builders that only collect, which is the fair comparison for simple use; WebEngage nothing about pricing is published, and since the entire commercial argument for WebEngage is that it undercuts Braze and CleverTap, you cannot evaluate the one thing that makes it interesting without entering a sales process.
  • They diverge on capability: Formstack covers Form builder, WebEngage covers Journey designer.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Formstack and WebEngage actually diverge.

Attributes where Formstack and WebEngage differ
AttributeFormstackWebEngage
Pricing modelTiered monthly subscription published on the vendor site; HIPAA-capable plans priced separatelyquote
PlatformsWeb, CloudWeb, iOS SDK, Android SDK, React Native, Flutter, API
CategorySurveysMarketing

Identical on both: starting price (On request), free tier (No), 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 WebEngage

  • Journey designer
  • Behavioural segmentation
  • Push and in-app
  • WhatsApp
  • Analytics
  • Personalisation
  • On-site surveys
  • Customer data platform

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 WebEngage
  • Regulated intake needing HIPAA-capable handlingnot WebEngage
  • Salesforce shops wanting forms and documents inside the CRMnot WebEngage

WebEngage

  • A consumer app in India or Southeast Asia with several million monthly users needs Braze-class journey automation at a price its marketing budget can absorb.not Formstack
  • A fintech or edtech business needs WhatsApp as a primary retention channel rather than a secondary one, in a market where email open rates are low and WhatsApp is universal.not Formstack
  • A media or ecommerce company wants behavioural segmentation and lifecycle journeys without building a customer data platform separately first.not Formstack
  • A team wants funnels, cohorts and retention analysis in the same tool that sends the messages, so the analyst and the campaign manager are not reconciling two systems.not 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

WebEngage

  • Nothing about pricing is published, and since the entire commercial argument for WebEngage is that it undercuts Braze and CleverTap, you cannot evaluate the one thing that makes it interesting without entering a sales process.
  • Message volumes across email, SMS and WhatsApp are metered separately from the platform fee, so a campaign that succeeds increases the bill in ways the monthly tracked user figure does not capture.
  • It requires genuine engineering investment to instrument events and user attributes correctly, and a poorly instrumented deployment produces segments that are wrong rather than merely incomplete, which is expensive to discover after launch.
  • Enterprise assurance is lighter than the American incumbents: procurement teams expecting extensive compliance documentation, regional data residency guarantees and 24 hour follow-the-sun support may find gaps.
  • Its centre of gravity is India, Southeast Asia and the Middle East, so partner availability, agency expertise and support hours all favour those regions and a European or North American buyer is a peripheral customer.

Pricing, plan by plan

Formstack

On request

No published plan breakdown. See the Formstack review.

WebEngage

On request
  • WebEngage$undefined/year
    • Priced by monthly tracked users and channels enabled
    • Journeys, segmentation and analytics included
    • Email, SMS and WhatsApp volumes charged separately

Which should you pick?

Choose Formstack if

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

Choose WebEngage if

  • You need journey designer.
  • You work on Web, iOS SDK, Android SDK, React Native, Flutter, API.
  • You also want behavioural segmentation.
WebEngage review

Questions people ask

Is Formstack or WebEngage better?
Neither clearly leads. Formstack starts at On request and WebEngage at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formstack or WebEngage?
Formstack starts at On request and WebEngage at On request.
Does Formstack or WebEngage run on more platforms?
Formstack runs on Web, Cloud. WebEngage runs on Web, iOS SDK, Android SDK, React Native, Flutter, API.
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 WebEngage is typically brought in for.
What can Formstack do that WebEngage cannot?
Formstack covers Form builder, Document generation, E-signature, Workflow routing. WebEngage covers Journey designer, Behavioural segmentation, Push and in-app, WhatsApp.

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.

WebEngage: How much does WebEngage cost?

It does not publish pricing. It is quoted by monthly tracked users with message volumes charged separately, and it typically comes in below Braze and CleverTap for equivalent volumes.

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.

WebEngage: Is it a CDP or a marketing automation tool?

Both, in practice. It assembles unified user profiles from event streams and then acts on them, though it is lighter than a dedicated CDP on data warehousing and identity resolution.

Formstack: Is it HIPAA compliant?

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

WebEngage: Is WebEngage owned by anyone else?

No. It remains an independent Mumbai-based company.

WebEngage: Which channels does it support?

Mobile push, in-app, web push, email, SMS and WhatsApp, with WhatsApp treated as a first-class channel rather than an add-on.

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