15Five and Effy AI represent opposite ends of the performance management spectrum. 15Five is a comprehensive platform ideal for medium to large organizations needing a full-featured performance management solution with extensive customization, integration capabilities, and automated workflows. It particularly excels in OKR management, 360-degree reviews, and analytics. Effy AI, conversely, is best suited to small businesses or startups seeking a simple, AI-powered review tool without the complexity of a full performance management suite. While Effy AI's natural language processing for review generation is impressive, its limited functionality makes it suitable only for organizations focused solely on streamlining their review process.
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Effy AI vs 15Five - Comparison 2025
Effy AI vs. 15Five
Last updated on
Reviewed by Paddy Stobbs
Stackfix Co-Founder & CEO
Advantages of Effy AI
Effy AI has superior AI-powered review question generation compared to 15Five
Effy AI offers a simpler, more focused user experience than 15Five
Advantages of 15Five
15Five is significantly more comprehensive in functionality than Effy AI
15Five offers superior integration capabilities compared to Effy AI
15Five provides much better customization options than Effy AI
15Five excels at automated review scheduling compared to Effy AI
Effy AI is best for
- Businesses with lean to no HR teams seeking AI-powered 360 reviews and feedback collection
- Businesses with minimal HR resources and limited performance management needs
- Who need AI assistance in creating and customizing review questionnaires
- And/or who need a streamlined, single-purpose 360 review tool integrated with Slack
15Five is best for
- Businesses with comprehensive performance management needs seeking an intuitive, automation-rich platform
- Businesses with a strong focus on continuous feedback and development through 1:1s and reviews
- Who need to automate and schedule sophisticated review cycles
- And/or who need to align individual performance with organizational goals through OKRs
Effy AI is less good for
- Businesses needing comprehensive performance management beyond basic AI-powered reviews
- Businesses with complex performance management needs requiring goals tracking, OKRs, or detailed analytics
- Who need to schedule and manage recurring reviews or 1:1s automatically
- And/or who need extensive integrations beyond Slack for their HR tech stack
15Five is less good for
- Businesses needing external stakeholder feedback and advanced performance improvement planning
- Businesses with complex external stakeholder feedback requirements, such as client-facing teams needing input from customers in their review cycles
- Who need advanced performance improvement planning capabilities integrated directly within employee profiles
- And/or who need AI-powered review question generation for customized feedback templates
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15Five
Pricing, features & ratings
 Effy AI Starting at $0Billed monthly |
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| Stackfix Verdict | ||
|---|---|---|
| Functionality | 4 <p>Effy AI specializes exclusively in the review cycle of Performance Management. It creates a seamless, easy feedback system where you can add employees, write reviews (or let AI generate them using natural language), and collect completed reviews. The review builder includes standard options like self-reviews and external reviewers for 360 feedback.</p><p>While Effy's natural language AI review template generation is innovative, the platform lacks all other performance management features - no 1:1s, goals, surveys, analytics, or anything else.</p> | 9 <p>15Five provides a robust performance management solution with nearly all essential features needed in this category. Our testing revealed well-implemented functionality across the platform. The few noteworthy gaps include the inability to create or edit performance improvement plans within employee profiles, no AI assistance for question generation, lack of compensation review and benchmarking tools, and limited options for incorporating external sources in reviews.</p> |
| Ease of Use | 8 <p>Effy excels at simplicity for its single feature: performance reviews and feedback. Testing showed the process is straightforward—queue a review once, let the cycle run, close it, review data, and you're done. While its minimalist approach makes daily use effortless, the tool would be even more valuable if it included basic features like advance scheduling or recurring cycles. These additions would make it a truly low-effort solution for SMBs that could run automatically in the background.</p> | 8 <p>We thoroughly enjoyed using this product. Between the engaging and intuitive interface as well as the easy to set up automations, we found a compellingly powerful software suite relative to its ease of use.</p><p>Using 1-2 modules should be sufficient for a user to feel confident with the platform. With the automations and templates available, we can see limited need to access the configurations of the platform. Instead, users can focus on the actual content of the site such as reviews, feedback, and acting on insights from the data suite.</p> |
| Look and feel | 8 <p>Effy features a slick, modern interface with clear navigation, consistent design, and efficient workflows. While the site has limited functionality, its contemporary design is appealing, even if it feels somewhat template-based throughout.</p> | 9 <p>15Five is fantastic at consistently executing a modern and engaging user interface across all its modules and pages. This looks and feels like a platform that has been meticulously bult as a cohesive whole.</p><p>In our own usage, we particularly liked the warm feeling imparted by the UI, and the only thing holding this back from a perfect score could be occasional pops of colour or visual variance to make this comfortable to use for days on end.</p> |
| Customisability | 2 <p>Other than the questions portion which offers Google Forms level customisability, nothing else on the platform can be changed. This omits branding changes, form layout changes, visualisation dashboard changes, and more.</p> | 7 <p>15Five offers solid customization options with data sources, appearances, and text inputs, placing it ahead of many competitors though not at the segment's leading edge.</p><p>During testing, we found essential features like company logo uploads and custom question templates.</p><p>However, the platform lacks more granular controls for certain elements including form customization, comprehensive interface branding, and custom data visualisations.</p> |
| Ease of Setup | 9 <p>Effy's setup process is straightforward, mainly due to its limited connectivity and minimal feature set. Testing showed you only need to add team members (via email invites or Slack integration) and create a review by either prompting a question, specifying a use case, or using an existing template. We missed the ability to bulk import data via CSV—currently only available by contacting their team directly. Most users can master the platform in under 30 minutes and begin sending reviews within 2 hours of implementation.</p> | 7 <p>15Five provides a straightforward setup process, offering immediate sandbox access to begin implementation. The platform features a category leading HRIS integration list to efficiently populate your data. During actual operation, navigating the goals framework required a brief learning period (approximately half a day), but overall configuration and deployment should require no more than 2 days to complete.</p> |
| Customer Support | 7 <p>Effy AI has a relatively responsive chatbot, and we got a response within 20 minutes of our first contact with them. Effy claims personalised support from their founders, and we found a personalised contact point from their CEO himself offering a tour and to reach out with any questions regarding the platform.</p> | 5 <p>Support access requires navigating through menus to reach an external support page. The support team operates Monday-Friday from 8 AM to 8 PM EST, with a response time target of within 2 business days for all tickets.</p> |
| Integratability | 2 <p>Other than their native integration with Slack, there are no integrations available. The useful connection with Slack is the only saving grace in a segment that typically has HRIS, Communications, and some calendar functionality.</p> | 9 <p>15Five features an extensive integration library for HRIS software and connects with management tools like Jira. While custom API integration remains necessary for unlisted software, the platform's robust integration options increase the likelihood of seamlessly importing your employee data.</p> |
| Ease of Migration | 4 <p>You can export results via CSV and that's it, missing the option often available at full suite products like PDF, XML, and more.</p> | 5 <p>We found the typical export functionalities of CSV and PDF within the reports, and some level of integrations with Slack amongst others to bring 15Five's data beyond the software. This is largely in line with the average exportability in the segment.</p> |
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