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Technology · head to head

Heap vs Whalesync

Heap logo

Heap

Technology

Product analytics for the modern product team

From
Free
Rated
-
Full reviewWebsite
Whalesync logo

Whalesync

No-Code

Two-way real-time sync between no-code databases and SaaS tools

From
$40/month
Rated
-
Full reviewWebsite

The short version

  • Only Heap has a free tier, so it costs nothing to try first.
  • Each has a real cost: Heap no built-in A/B testing or feature flags; requires integration with separate tools for experimentation; Whalesync pricing counts records held in sync rather than changes made, so a large but rarely edited catalogue costs the same as a highly active one and the economics punish exactly the datasets that need the least work.
  • They diverge on capability: Heap covers Autocapture, Whalesync covers Two-way sync.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Heap and Whalesync actually diverge.

Attributes where Heap and Whalesync differ
AttributeHeapWhalesync
Starting priceFree$40/month
Pricing modelUnknownPer month by records in sync
Free tierYesNo
PlatformsWeb, iOS, AndroidWeb
CategoryTechnologyNo-Code
Founded2013Unknown

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 Heap

  • Autocapture
  • Retroactive analytics
  • Session replay
  • Funnel analysis
  • User segmentation
  • Path analysis
  • Data science
  • Virtual events

Only in Whalesync

  • Two-way sync
  • Live updates
  • Field mapping
  • Unlimited mappings
  • Backfill
  • Monitoring
  • Database connectors
  • Relational field support

What people use each for

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

Heap

  • User behavior analysisnot Whalesync
  • Conversion optimizationnot Whalesync
  • Product adoptionnot Whalesync
  • Customer journey mappingnot Whalesync
  • A/B testing analysisnot Whalesync

Whalesync

  • A team that plans work in Notion but reports from Airtable and needs one edit to appear in both without anyone copying it acrossnot Heap
  • A marketing site built in Webflow whose content is authored and managed in Airtable, kept in step continuously rather than republished on a schedulenot Heap
  • A startup keeping a Postgres application database and an internal Airtable operations view aligned without building a sync servicenot Heap
  • An agency keeping a client CRM and a project tracker consistent so account managers and delivery staff work from the same recordsnot Heap

Where each one falls short

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

Heap

  • No built-in A/B testing or feature flags; requires integration with separate tools for experimentation
  • Group analytics and advanced features require a sales conversation, not self-serve
  • Cloud-only deployment; no self-hosted option for data security or compliance requirements
  • Session replay lacks developer debugging tools compared to PostHog
  • Pricing for Growth and Pro plans requires direct sales contact; no transparency on how pricing scales

Whalesync

  • Pricing counts records held in sync rather than changes made, so a large but rarely edited catalogue costs the same as a highly active one and the economics punish exactly the datasets that need the least work.
  • The gap between the 1,000 record starter tier and the million record higher tiers is very wide with no published intermediate price, so a business at ten thousand records cannot tell what it will pay without contacting the vendor.
  • Bidirectional sync has conflict semantics, and when two people edit the same field in two tools within a sync interval one edit is lost, which is silent and only discovered when someone notices their change reverted.
  • It is a small company holding a live connection in the middle of operational data, so continuity risk is real and any team relying on it should keep an export routine and know how it would rebuild the mapping.
  • It syncs records between tools but does not transform or model data, so anything requiring aggregation, deduplication or business logic between the two ends still needs a separate tool or a warehouse.

Pricing, plan by plan

Heap

Free
  • FreeFree
    • Up to 10,000 monthly sessions
    • Basic charts
    • 6 months data history
  • Growth$undefined/custom
    • Custom session pricing
    • Sense AI assistant
    • 12 months data history
  • Pro$undefined/custom
    • Custom session pricing
    • Account analytics
    • Engagement matrix
  • Premier$undefined/custom
    • Custom session pricing
    • Data warehouse integration
    • Unlimited projects

Whalesync

$40/month
  • Starter$40/month
    • 1,000 records in sync
    • Live two-way sync
    • Unlimited mappings and row changes
  • Plus$undefined/month
    • Up to 1,000,000 records in sync
    • Live two-way sync
    • Unlimited mappings and row changes
  • Pro$undefined/month
    • Up to 1,000,000 records in sync
    • Priority support
    • Advanced field handling

Which should you pick?

Choose Heap if

  • You need autocapture.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want retroactive analytics.
Heap review

Choose Whalesync if

  • You need two-way sync.
  • You also want live updates.
Whalesync review

Questions people ask

Is Heap or Whalesync better?
Neither clearly leads. Heap starts at Free and Whalesync at $40/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Heap or Whalesync?
Heap has a free tier; the other does not. Paid plans start at Free for Heap and $40/month for Whalesync.
Does Heap or Whalesync run on more platforms?
Heap runs on Web, iOS, Android. Whalesync runs on Web.
Can I use Heap for free?
Yes. Heap has a free tier, so you can try it without paying. Whalesync starts at $40/month.
What is Heap best used for?
Heap is most often used for user behavior analysis, conversion optimization, product adoption, customer journey mapping. Of those, user behavior analysis and conversion optimization are not what Whalesync is typically brought in for.
What can Heap do that Whalesync cannot?
Heap covers Autocapture, Retroactive analytics, Session replay, Funnel analysis. Whalesync covers Two-way sync, Live updates, Field mapping, Unlimited mappings.

Answered from the vendors’ own pages

Heap: What does Heap's autocapture feature do?

Heap's autocapture is a single code snippet that automatically captures every click, swipe, tap, pageview, and form fill on your website and apps without requiring manual event setup. Once installed, Heap captures the entire digital experience of every user on every platform with no ongoing engineering maintenance needed.

Source
Whalesync: How is this different from Zapier?

Zapier triggers one-way actions. Whalesync maintains a persistent mapping between two copies of a record so edits flow both ways without loops or duplicates, which two zaps cannot achieve reliably.

Heap: What are Heap's pricing plans and how much do they cost?

Heap offers a Free plan for up to 10,000 monthly sessions. Growth, Pro, and Premier plans use custom session-based pricing that requires contacting sales for a quote. Free includes basic charts and 6 months data history. Growth adds the Sense AI assistant. Pro adds account analytics. Premier adds data warehouse integration and dedicated customer success management.

Source
Whalesync: What counts as a record in sync?

A record becomes counted the first time it syncs, and records are not double counted across the two applications, so a thousand paired rows count once rather than twice.

Heap: Does Heap include session replay and A/B testing?

Heap includes integrated session replay showing exactly what users did on your site. However, Heap does not include built-in A/B testing or feature flags. Teams requiring these capabilities must use separate tools or integrate with third-party platforms.

Source
Whalesync: Is there a free plan?

No, only a seven day trial. Paid plans start around 40 US dollars a month for a thousand records.

Heap: What integrations does Heap support?

Heap supports over 100 integrations connecting to business tools including marketing platforms, CRMs, and data warehouses. This allows insights to reach relevant teams and ensures data flows to other business systems automatically.

Source
Whalesync: What happens on a sync conflict?

One side wins and the other edit is discarded. Teams that expect simultaneous editing of the same fields in two tools should establish an owning system per field rather than relying on the sync to arbitrate.

Heap: Does Heap offer self-hosting or is it cloud-only?

Heap is cloud-only and does not offer self-hosted options. Organizations requiring on-premises deployment should consider alternatives like PostHog which supports self-hosting alongside its cloud product.

Source
Heap: What is Sense and how does it help with analytics?

Sense Chat is Heap's AI assistant that enables users to access analytics without extensive technical knowledge. It allows teams to ask questions about user behavior and get answers directly without lengthy onboarding or technical expertise, making insights more accessible to non-technical stakeholders.

Source
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