Postman vs Whalesync: Pricing Comparison (2026)
Postman starts at $19/mo. Whalesync starts at $40/mo. Postman is $21/mo cheaper on the entry tier than Whalesync.
The API development platform that defined the category, used by 30M+ developers at 500K+ companies. Positioned as the shared workspace for API design, testing, monitoring, and documentation. Distinctive for its collection-based workflow that made API testing collaborative before Insomnia and Bruno existed. Priced $14-$29/user/mo across Free/Basic/Professional plus custom Enterprise. Also offers Postman AI Agent Builder (2024 launch) for AI-powered API workflows. Founded 2014 in Bangalore, $5.6B valuation (2021 Series D). Public API network hosts 200K+ published APIs.
Two-way database sync between no-code tools (Airtable ↔ Webflow ↔ Supabase ↔ Notion ↔ HubSpot). Positioned as the alternative to running one-way Zapier automations for keeping two data sources in lockstep. Distinctive for solving the specific pain of 'CMS collection needs to match Airtable base but also flow back'. Restructured 2026: retired the $5 Personal tier, now starts at Starter $40/mo (1,000 records in sync). Higher tiers (Plus, Pro) use a records-based slider with prices scaling to $200+/mo. Enterprise custom. YC-backed. Popular with no-code agencies building client sites and startups syncing CMS to Webflow/WordPress.
All plans compared
| # | Plan | Postman monthly | Postman annual | Whalesync monthly | Whalesync annual |
|---|---|---|---|---|---|
| 1 | Free / Starter | 0 | 0 | 40 | 32 |
| 2 | Basic / Plus | 19 | 14 | 80+ | 64+ |
| 3 | Professional / Pro | 39 | 29 | 200+ | 160+ |
| 4 | Enterprise | custom | custom | custom | custom |
What each is best for
The API development platform that defined the category, used by 30M+ developers at 500K+ companies. Positioned as the shared workspace for API design, testing, monitoring, and documentation. Distinctive for its collection-based workflow that made API testing collaborative before Insomnia and Bruno existed. Priced $14-$29/user/mo across Free/Basic/Professional plus custom Enterprise. Also offers Postman AI Agent Builder (2024 launch) for AI-powered API workflows. Founded 2014 in Bangalore, $5.6B valuation (2021 Series D). Public API network hosts 200K+ published APIs.
Two-way database sync between no-code tools (Airtable ↔ Webflow ↔ Supabase ↔ Notion ↔ HubSpot). Positioned as the alternative to running one-way Zapier automations for keeping two data sources in lockstep. Distinctive for solving the specific pain of 'CMS collection needs to match Airtable base but also flow back'. Restructured 2026: retired the $5 Personal tier, now starts at Starter $40/mo (1,000 records in sync). Higher tiers (Plus, Pro) use a records-based slider with prices scaling to $200+/mo. Enterprise custom. YC-backed. Popular with no-code agencies building client sites and startups syncing CMS to Webflow/WordPress.
At a glance
| Postman | Whalesync | |
|---|---|---|
| Free plan | Yes | — |
| Entry price | $19/mo | $40/mo |
| Enterprise available | Yes | Yes |
| Pricing model | — | Per Usage |
| Last verified | August 30, 2026 | August 28, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified August 30, 2026. Tracked daily.