Coupler.io vs Windsor.ai pricing and which connector costs less for your stack

Is Windsor.ai cheaper than Coupler.io?

For an agency, almost always. Windsor.ai lets 75 accounts sit inside its $19 Basic plan, so 20 clients each running Google Ads, Meta and GA4, which is 60 accounts across 3 platforms, fit on Basic for Looker Studio reporting or on Standard at $99 if you also run more than five scheduled table syncs. The same 60 accounts on Coupler.io need Pro at $199 plus 10 extra accounts at $4.49, which is $243.90 a month on annual billing.

For an in-house team with a wide stack, usually not. A B2B company on Google Ads, Meta, LinkedIn Ads, Microsoft Ads, GA4, Search Console, HubSpot and Stripe has 8 platforms but only 8 accounts. Coupler.io Active covers that for $99 with unlimited users. Windsor.ai needs Plus at $249 because Standard stops at 7 data sources. Add a ninth or tenth platform and Coupler.io still costs $99 while Windsor.ai is still $249.

If you want either ladder on its own, we priced Coupler.io pricing plans account by account, and the Windsor.ai pricing guide covers every tier, the trial and the free plan in detail.

How much does Coupler.io cost compared to Windsor.ai?

The entry prices are five dollars apart. Coupler.io Starter is $24 a month billed annually or $32 monthly, and Windsor.ai Basic is $19 billed annually or $23 monthly. The mid tiers land on the same $99: Coupler.io Active and Windsor.ai Standard. Above that the ladders split, with Coupler.io Pro at $199 for 50 accounts and Windsor.ai running to Plus at $249 and Professional at $499.

What those prices buy is different. Coupler.io Starter is one user, one destination and 5,000 rows per run, so it suits a single person feeding one Google Sheet. Windsor.ai Basic already includes unlimited users and five active destination tasks, and BI destinations such as Looker Studio and Power BI do not count against that task limit. On the cheapest tier, Windsor.ai gives a team more room.

Coupler.io is also running a switch offer on its pricing page, a 50 percent price cut for new customers who bring a competitor quote, subject to its approval. If you are moving off Windsor.ai, ask for it in writing before you sign.

What counts as an account and a data source?

A data source is a platform: Google Ads, Meta Ads, GA4, Shopify. An account is one connection inside a platform: a single Meta ad account, a single GA4 property, a single store. Ten clients each running Google Ads and Meta is 2 data sources and 20 accounts.

Coupler.io meters the accounts and ignores how many platforms they come from, so one account each on 12 platforms still fits Active. Windsor.ai meters the platforms and gives a large account allowance inside them, so 75 Google Ads accounts on one platform still fit Basic. Windsor.ai also counts every 10 Google Business Profile locations as one account, which matters for multi-location clients.

Which is better for agency reporting, Coupler.io or Windsor.ai?

Windsor.ai, on price, for most agencies. Agency stacks are narrow and deep: the same four or five platforms repeated across every client. That is exactly the shape Windsor.ai prices well, and Professional adds auto-add, which connects every account under a platform login automatically as you win new clients. Unlimited users on every plan means the whole team can work in it.

Coupler.io earns its place in an agency when clients bring platforms outside the usual set, since its catalog runs to about 440 sources including CRMs, accounting tools and databases, or when the deliverable lives in a warehouse. Pro adds team and client workspaces at $199. If what you sell clients is a branded report rather than a data feed, a reporting platform may fit better than either connector, and we compare those on a cost-per-client basis in agency reporting software pricing.

Does Coupler.io or Windsor.ai have a free plan?

Both do, and neither is meant for real reporting. Coupler.io gives 7 days with Pro limits, then drops to a free plan with 1 account, 1 user, 1 source, manual refresh and 100 rows per run. Windsor.ai gives a 30-day trial with 1 user, 10 sources, 15 accounts and 30 days of history, then a forever-free plan with 1 user, 1 source and 1 account.

Use the trials to confirm the connectors return the fields you need from your own accounts. Windsor.ai gives you longer to test. Budget for the paid tier from day one, since scheduled refresh on Coupler.io and more than one platform on Windsor.ai both need a paid plan.

Do Coupler.io or Windsor.ai calculate blended ROAS?

Not on their own. Both move the numbers each ad platform reports about itself into Sheets, Looker Studio or a warehouse, and both let you build formulas on top. The inputs are still platform-claimed conversions. Google Ads and Meta both take credit for the same orders, so adding their revenue overstates the real total, often by 20 to 40 percent.

A number you can move budget on starts from the other end: total ad spend across every channel against the revenue your store and payment processor actually recorded. That gives you blended ROAS, blended CAC, MER and LTV:CAC. MixedMetrics connects read-only to Google Ads, Meta, TikTok, GA4, Shopify and Stripe and keeps those figures live on one board, from $79 a month, or $39 a month billed annually, with the AI leak layer on Growth.

Plenty of teams run a connector and a blended board side by side. The connector feeds ad-hoc analysis and client decks, and the board answers the weekly question of where the next dollar goes. If you are still choosing a connector, Windsor.ai vs Supermetrics and the five-way Coupler.io vs Funnel.io connector pricing comparison price the rest of the field the same way.