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TL;DR: GWork and Humu (now part of Perceptyx) both use behavioral science to change employee behavior. The key difference: GWork is a standalone behavioral change platform with habit formation, micro-certifications, and behavioral analytics. Humu is now a nudge engine embedded within Perceptyx’s employee listening platform — you can’t buy nudging without buying the full survey suite. Choose Humu/Perceptyx if you want survey-driven nudges integrated with employee listening. Choose GWork if you want a dedicated behavioral change platform focused on building lasting habits at scale.
Background: What Happened to Humu
Humu was founded in 2017 by Laszlo Bock, former Senior VP of People Operations at Google. The company built an AI-driven nudge engine that analyzed employee data and delivered personalized behavioral nudges — small, timely prompts designed to change specific behaviors.
In August 2023, Perceptyx acquired Humu. The nudge technology was integrated into Perceptyx’s employee listening and people analytics platform. Humu’s standalone product no longer exists. To access Humu’s nudging capabilities, organizations now purchase the Perceptyx platform.
This acquisition changed Humu’s positioning. What was once a standalone behavioral nudge platform became a feature within a survey and analytics company. The implications matter for buyers.
At-a-Glance Comparison
| Dimension | GWork | Humu (Perceptyx) | |———–|——-|——————-| | Status | Standalone platform | Feature within Perceptyx listening platform | | Core approach | Behavioral change through nudges, habits, and certifications | Nudges triggered by survey and analytics data | | Purchase model | Buy behavioral change directly | Must buy full Perceptyx suite to access nudging | | Nudge library | Science-backed behavioral nudges | 2,000+ nudges targeting 90+ behaviors | | Habit formation | Structured programs with reinforcement cycles | Nudge delivery (lighter-touch) | | Certification | Micro-certification system for demonstrated behavior | Not available | | Measurement | Behavioral adoption rates and leading indicators | Survey-based measurement + nudge engagement | | Integration | Slack, Teams, email, HRIS | Perceptyx platform, email | | Manager tools | Behavioral reinforcement and modeling tools | Manager-specific nudges | | Data source | Behavioral data + integrations | Survey data + HRIS data |
Detailed Comparison
Behavioral Science Approach
Humu/Perceptyx pioneered the workplace nudge concept. Its AI analyzes survey data, HRIS data, and other inputs to identify which behaviors matter most, then delivers personalized nudges via email. The nudge library covers 2,000+ nudges across 90+ behaviors — everything from “give more specific feedback” to “recognize a team member’s contribution today.”
The strength of Humu’s approach is its breadth (90+ behaviors) and its data-driven targeting (the AI identifies which nudge to send to whom based on survey responses and organizational context).
GWork also uses behavioral nudging but embeds it within a broader behavioral change methodology. Beyond nudges, GWork includes structured habit formation programs (following the 66-day research on habit development), micro-certifications that validate demonstrated behavioral competency, and behavioral analytics that track adoption at the individual, team, and organizational level.
The difference: Humu’s nudges prompt behavior. GWork’s programs build lasting habits. A nudge says “give feedback today.” A habit formation program builds the neural pathway so feedback becomes automatic.
Standalone vs. Bundled
This is the most significant practical difference.
GWork is a standalone behavioral change platform. You buy it specifically because you want to change employee behavior. The implementation focuses entirely on behavioral programs, nudge delivery, habit formation, and behavioral measurement.
Humu is now bundled within Perceptyx’s employee listening platform. Perceptyx’s core business is surveys — engagement surveys, pulse surveys, 360 assessments, lifecycle surveys. The nudge engine is an add-on to close the “listen-to-act” gap.
What this means for buyers:
- If you already use Perceptyx for employee listening: Humu’s nudging is a natural extension. You’re already paying for the platform and the nudge capability adds action to your survey data.
- If you don’t use Perceptyx: You would need to buy the full listening platform to access the nudge engine. That means adopting a new survey tool, migrating from your current engagement platform, and paying for survey capabilities you may already have elsewhere.
Measurement Philosophy
Humu/Perceptyx measures nudge effectiveness primarily through survey data. Did survey scores improve after nudges were deployed? Did specific areas flagged by the survey show improvement in the next pulse? The measurement loop is survey → nudge → survey.
The advantage: it ties directly to the engagement metrics that HR leaders report to the C-suite. The limitation: survey responses are perceptual. They measure how people feel about behavior, not whether behavior actually changed.
GWork measures behavioral change through adoption data. What percentage of managers are giving weekly feedback? How many teams are documenting decisions? What’s the behavioral frequency trend over 30, 60, 90 days? The measurement loop is behavioral baseline → intervention → behavioral tracking.
The advantage: direct behavioral measurement, not perception-based surveys. The limitation: requires integration with the tools where behaviors happen (Slack, Teams, HRIS) to track adoption.
Depth of Behavioral Change
Humu/Perceptyx delivers nudges — short prompts designed to trigger a specific behavior in the moment. Think of it as a tap on the shoulder: “hey, when you finish this meeting, take 2 minutes to recognize someone who contributed.”
Nudges are effective for awareness and short-term behavior prompting. Research on nudge effectiveness in workplace settings shows they can increase target behaviors by 10-20% in the short term. Whether those behaviors persist after nudging stops is less clear.
GWork goes beyond nudging to include habit formation programs. These are structured sequences that build behaviors through repetition, reinforcement, and environmental design over weeks and months. The goal isn’t just to prompt a behavior once but to make it automatic — a habit that persists without ongoing external prompting.
GWork also includes micro-certifications — employees earn credentials for demonstrated behavioral competency. This adds social accountability (certifications are visible) and intrinsic motivation (earning credentials for growth).
Who Should Choose Humu (Perceptyx)
Humu/Perceptyx is the right choice when:
- You already use Perceptyx for employee listening and want to add action to your survey insights
- Survey-driven improvement is your mental model — you want nudges that specifically address what surveys reveal
- You want a proven nudge library with 2,000+ nudges across 90+ behaviors, curated by Laszlo Bock’s team
- Engagement scores are your primary KPI — you measure success through survey improvements
Ideal Humu/Perceptyx customer: An HR analytics leader at a large enterprise already using Perceptyx surveys, who wants to close the gap between survey insights and employee action through targeted nudges.
Who Should Choose GWork
GWork is the right choice when:
- Behavioral change is the primary goal, not a feature within a survey platform
- You need habit formation, not just nudge prompting — behaviors that persist long-term
- Micro-certifications and visible behavioral credentials matter for your program (culture transformation, compliance behaviors, manager effectiveness)
- Behavioral adoption data matters more than survey score improvements — you want to know if behavior actually changed, not just if perceptions shifted
- You don’t want to change your survey platform just to get nudging capabilities
Ideal GWork customer: A Chief People Officer launching an enterprise behavioral change program (feedback culture, strategy execution behaviors, manager effectiveness) who needs measurable adoption data and lasting habit formation across the workforce.
Frequently Asked Questions
Is Humu still available as a standalone product?
No. Humu was acquired by Perceptyx in August 2023 and integrated into the Perceptyx People Insights Platform. To access Humu’s nudge capabilities, you need to purchase the Perceptyx platform.
What’s the difference between nudging and habit formation?
Nudging delivers a prompt to trigger a behavior in the moment (“give feedback today”). Habit formation builds the behavior into a lasting pattern through repetition and reinforcement over time (typically 66+ days based on UCL research). Nudges can be part of habit formation, but habit formation requires a structured program beyond individual nudges.
Can GWork and Perceptyx work together?
Potentially. An organization could use Perceptyx for employee listening and survey analytics while using GWork for dedicated behavioral change programs. The survey data informs which behaviors to target, and GWork’s platform builds those behaviors into lasting habits.
How many behaviors does each platform target?
Humu’s library includes 2,000+ nudges targeting 90+ behaviors. GWork focuses on building deep behavioral change programs around specific organizational priorities rather than covering a broad library of prompts. The approaches differ: breadth of behaviors nudged vs. depth of habit formation per behavior.
Which platform has better behavioral science credentials?
Both platforms are grounded in behavioral science. Humu was founded by Google’s former CHRO and draws on Google’s people analytics research. GWork is built on established behavioral science frameworks including Nudge Theory (Thaler and Sunstein), the Fogg Behavior Model, and habit formation research (Phillippa Lally at UCL). Both have legitimate behavioral science foundations with different emphases.
