Whalesyncvs
Zapier


Zapier: If the requirement is one-way triggered automations across many apps rather than continuous two-way record parity

Two-way real-time sync between no-code databases and SaaS tools
As of 31 August 2026, Whalesync starts at $40/month. Whalesync keeps records identical in two places continuously and in both directions, which is a different and harder problem than the one-way pipelines Zapier and Fivetran solve. Softwr lists it under No-Code. Whalesync is available on Web.
Overview
Whalesync synchronises records between applications in both directions and in near real time. Connect an Airtable base to a Notion database, a Postgres table to a Webflow collection or a HubSpot object to a spreadsheet, map the fields once, and an edit in either place appears in the other without anyone triggering an automation. Unlike a workflow tool it maintains a persistent mapping between the two copies of a record, which is what makes bidirectional sync possible rather than producing duplicates. The distinction matters commercially because most teams reach for Zapier, discover that a two-way sync built from two one-way zaps creates an update loop, and then discover that reconciling which side won a conflict is not a problem you can solve with more zaps. Whalesync exists for exactly that gap, and it is why its customers are usually small teams running a business on no-code tools rather than data engineering functions who would use a warehouse and reverse ETL. The buyer is a founder, operations lead or agency. The trade offs are scale and dependence. Pricing counts records in sync, starting around 40 US dollars a month for a thousand records and rising to a million on higher tiers, so a large catalogue is expensive even if it barely changes. It is a small company, which is a genuine risk for something sitting in the middle of your operational data. And any bidirectional sync has conflict semantics that only become visible when two people edit the same field in different tools on the same afternoon.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Whalesync.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.


Zapier: If the requirement is one-way triggered automations across many apps rather than continuous two-way record parity


Airbyte: If the destination is a warehouse and you need extraction at volume rather than bidirectional operational sync


Fivetran: If this is a managed data pipeline into analytics rather than keeping two operational tools identical
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Starter
$40 /mo
Plus
On request
Pro
On request
Capabilities
Two-way sync
Changes propagate in both directions with a persistent record mapping rather than duplicate creation
Live updates
Syncs continuously rather than on a schedule you have to configure
Field mapping
Maps and transforms fields between differently shaped schemas in each tool
Unlimited mappings
No cap on the number of table pairs or row changes on any plan
Backfill
Brings existing records into sync when a connection is first created
Monitoring
Flags failed or stalled syncs rather than failing quietly
Database connectors
Connects Postgres, Supabase and similar alongside no-code tools
Relational field support
Preserves links between records rather than flattening relationships
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
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.
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.
No, only a seven day trial. Paid plans start around 40 US dollars a month for a thousand records.
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.
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Softwr does not host reviews and shows no star rating for Whalesync, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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Every tier, and where the cost actually lands
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