Dataslayer review

Dataslayer pulls ad, analytics, CRM and ecommerce data into Google Sheets, Looker Studio, Excel, Power BI or a warehouse destination, the same job as Supermetrics or Windsor.ai. The Madrid company built its pitch around two things: a connector price that undercuts the category’s two biggest names, and AI Insights, a natural-language query layer over your connected data that ships starting on the second paid tier instead of staying locked to an enterprise plan.

What you get on each plan

The Free plan is permanent, not a trial: one connector, one user, one manual daily refresh into a single core destination. A separate 15-day trial, no card required, opens up more connectors and destinations before the account drops back to Free. Starter runs €29/mo for 3 connectors, 1 user, daily refresh and unlimited rows into Sheets, Excel or Power BI, plus a 30-minute onboarding call and 24/5 live chat. Advanced is €99/mo for 7 connectors, 10 users, hourly refresh, data blending across sources, and AI Insights with 100 MCP messages a day. Pro is €299/mo for 10 connectors, unlimited users, the same hourly refresh ceiling and the full AI Insights allowance with a dedicated account manager. Business is a custom quote for teams past 10 connectors. Every paid tier also carries a 10% discount for a second destination and 15% for three or more, stacking on top of the roughly 20% Dataslayer knocks off for annual billing.

Where the bill grows

Two things push the real cost up. The first is connector count: 60-plus native sources sounds broad until you set it next to Supermetrics or Windsor.ai, which both clear 300. If the stack includes a less common platform, check the connector list before signing up, not after. The second is refresh speed: hourly is the ceiling at every paid tier, including the €299 Pro plan, so a team that needs 15-minute or near-real-time numbers won’t find them here at any price. Starter excludes both data blending and AI Insights, so the cheapest paid tier buys connector plumbing and nothing past it.

What users say in reviews

G2 reviewers rate Dataslayer 4.8 out of 5 across roughly 310 reviews, with ease of use scoring 9.1 and quality of support scoring 9.5, both ahead of the category average. Several reviewers name specific support staff and credit fast ticket responses. Capterra puts it at 4.7 out of 5 across 82 reviews, where the recurring praise is price: multiple reviewers call it cheaper than Supermetrics-class tools, with support that stays responsive. The complaints cluster in two places. On G2, reviewers on the Free and Starter tiers push back on how much sits behind the Advanced upgrade, including data blending and the account access needed for larger automated setups. On Capterra, a repeated complaint is that individual connectors occasionally stop refreshing and that performance drags on very large queries, though several reviewers trace the issue to the data source itself rather than Dataslayer’s side of the pipe.

Who should skip it

Skip Dataslayer if the reporting stack already leans on a platform outside its 60-plus connector list, or if near-real-time refresh matters more than price. Supermetrics and Windsor.ai both go deeper on connectors, and neither caps refresh at hourly on its top tier. An agency juggling a long, varied client roster is better served starting from our marketing reporting connectors guide or our Looker Studio connectors guide, which line up several tools side by side on price and connector depth. Dataslayer fits better for a small or mid-size team whose sources are mostly mainstream ad and analytics platforms, and who wants AI-assisted queries without paying Supermetrics-level per-source pricing to get them.