Windsor.ai vs Coupler.io: accounts, destinations and refresh

Windsor.ai vs Coupler.io: the short answer

Windsor.ai Basic covers 3 data sources (the platforms data comes from) and 75 accounts, with every destination, for $19 a month billed annually. Coupler.io Starter covers 3 accounts and 1 destination for $24 a month on the same billing. Both prices were read on October 24, 2026.

Coupler.io suits a team that adds accounts one at a time. Windsor.ai suits a team with many accounts across a few platforms that wants every destination on one plan.

Coupler.io pricing by accounts and destinations

• Starter: $24 a month billed annually, $32 monthly. 3 accounts, 1 destination, a daily refresh, 1 user and 5,000 rows a run.
• Active: $99 billed annually, $132 monthly. 15 accounts, 3 destinations, a daily refresh and unlimited users.
• Pro: $199 billed annually, $259 monthly. 50 accounts, unlimited destinations and an hourly refresh.

Coupler.io says annual billing saves 25%. Every source and destination is on every plan, and the plan caps how many destinations: 1, 3 or unlimited. It lists 400+ sources on its pricing page. It counts accounts differently by source category, and support sells extra accounts. See Coupler.io alternatives.

The limit is rows. Starter exports at most 5,000 rows a run and the Free plan 100, while Windsor.ai says its paid plans include unlimited rows.

Refresh schedules compared

Coupler.io refreshes daily on Starter and Active, hourly on Pro and every 15 minutes on Custom, according to its pricing page. Its FAQ and its Looker Studio (Google now calls it Data Studio) page say refresh can run up to every 15 minutes, but name no plan.

Windsor.ai runs scheduled syncs daily on Basic and hourly from Standard, $99 a month billed annually or $118 monthly. Professional adds a 15-minute sync, $499 a month billed annually or $598 monthly.

Free plans and trials

Coupler.io gives 7 days of full access, then a Free plan with 1 account, 1 user, manual refresh and 100 rows a run. Windsor.ai's free account gives 30 days of extra capacity, then a Forever Free plan with 1 data source and 1 account, with the Terms saying trial access ends.

No credit card is asked for a free Windsor.ai account, according to its answers page. See Windsor.ai pricing for every paid plan.

Which Windsor.ai and Coupler.io plan fits 12 or 25 clients

Take 12 clients with Meta Ads, Google Ads and GA4 each: 3 data sources and 36 accounts, 12 per source. Windsor.ai Basic covers that, at $19 a month billed annually or $23 monthly. Coupler.io Active includes 15 accounts and Pro 50, so 36 accounts fits Pro, $199 a month billed annually or $259 monthly, or a smaller plan with extra accounts.

Take 25 clients on 4 platforms: 4 data sources and 100 accounts. Standard's 75 accounts are too few, so Windsor.ai Plus fits, with 200 accounts across 10 sources at $249 a month billed annually or $299 monthly. Coupler.io Pro includes 50 accounts; more accounts cost $5.99 each on monthly billing, and Custom is by quote. See Looker Studio connectors pricing for more plans.