How do their growth rates compare?

Effy has a month-over-month growth rate of -26.1%; Windmill (Windy) has +20.6%.

How does pricing compare?

Effy: Freemium, Contact for Pricing. Freemium with paid tiers. The free plan supports up to 5 users with no time limit, and the entry paid price is $3 per seat per month — the company states there are no implementation fees. Larger or more complex needs are priced via contact with sales. Windmill (Windy): Contact for Pricing. Contact for pricing. Windmill books a demo to scope plans for your team size and modules rather than listing public self-serve tiers.

What are alternatives to Effy and Windmill (Windy)?

Other tools in related categories include Skillsoft Percipio, Motion, Leapsome, Careerflow, Nifty.

Effy vs Windmill (Windy) — Traffic (13.99K vs 24.48K), Pricing & Verdict

Open AI Tools

Effy vs Windmill (Windy) — Traffic (13.99K vs 24.48K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Effy	Windmill (Windy)
Official Domain	effy.ai	gowindmill.com
Pricing Model	Freemium, Contact for Pricing	Contact for Pricing
Monthly Visits	13.99K (13,992)	24.48K (24,480)
MoM Traffic Delta	-4.93K (-26.1%)	+4.18K (+20.6%)
Primary Market & Share	🇺🇸 United States (38.5%)	🇺🇸 United States (73.4%)
Direct Visits / mo	5.6K	9.98K
User Rating	4.3	4.4
Supported Platforms	Website	Website

Effy

AI performance reviews and goals that actually get run

AI-generated review summaries

Raw feedback from reviews is distilled into individual and company-wide reports that are ready to present, cutting the administrative work of each cycle.

Every review type in one system

Run 360s, peer reviews, upward reviews, self-assessments, probation check-ins and annual reviews with customizable forms and flexible workflows.

Cascading goals and OKRs

Set company, team and individual goals with auto-calculated progress, then include them automatically in review cycles.

Slack-native workflows

Reminders and review tasks arrive where employees already work, with email automation for those who prefer it.

Strengths & Pros

+Publishes transparent starting pricing at $3 per seat per month with a genuinely usable free tier for up to 5 users
+Fast setup — most teams launch without an implementation call, per the vendor
+AI summaries and reports remove the biggest time sink in review cycles
+Slack and email automation plus goal cascading keep the process running without chasing