Decode vs HeyMarvin
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Decode
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"Entropik.io Decode : Emotion AI Insights Platform Entropik.io Decode is an advanced Emotion AI-powered research application designed to help brands, marketers, and product teams understand human emotions, attention, and engagement in response to digital content. The app enables data-driven decision-making by decoding subconscious emotional reactions to ads, videos, concepts, and user experiences. Using cutting-edge AI models, Decode captures and analyzes facial expressions, eye movement, attention metrics, and engagement signals to deliver deep insights into how users truly feel, not just what they say. Key Features Emotion Detection & Analysis Measures emotions such as happiness, surprise, confusion, and frustration through facial coding technology. Attention & Engagement Tracking Tracks user attention, focus duration, and engagement levels to identify high- and low-impact content moments. Content & Ad Testing Evaluate ads, videos, images, and digital experiences to understand emotional effectiveness and performance. Real-Time Insights Dashboard Visualize emotion trends, attention heatmaps, and engagement scores through intuitive dashboards. Secure Data Handling Ensures enterprise-grade security with encrypted data storage and compliance with global data protection standards. Seamless Study Participation Participants can easily join studies using secure links and follow guided instructions within the app. Benefits Improve Campaign Performance by identifying emotionally impactful moments Optimize User Experience (UX) using attention and engagement insights Reduce Research Bias by capturing subconscious responses Make Faster Decisions with AI-powered, real-time analytics Enhance ROI by validating content before launch"
HeyMarvin
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Marvin is the mobile companion for research and customer-facing teams who use Marvin to run, record, and understand conversations with users, customers, and prospects. Take Marvin into the field: record face-to-face interviews, capture notes in the moment, and let your workspace do the rest. WHAT YOU CAN DO โข Record audio or video interviews directly from your phone, wherever the conversation happens โข Follow a discussion guide during the interview so you can remember the questions to ask. โข Capture AI notes and tag key moments while you talk โ no need to remember it all afterward. โข Tag questions from the discussion guide to a particular moment in time and have AI summarize the answers to these questions. โข Recordings are saved securely to your team's Marvin workspace, even if the connection drops โ uploads resume automatically โข Transcription and AI-assisted notes are generated automatically once your recording finishes uploading โข Keep recording in the background if your phone locks or you switch apps mid-interview โข Review past recordings, notes, and processed files from your project list WHO IT'S FOR Marvin is built for Researchers, Designers, Product Managers, and anyone on a customer-facing team who runs structured interviews and wants those conversations turned into transcripts, notes, and insights without manual busywork. HOW IT WORKS WITH YOUR WORKSPACE Marvin mobile is a companion to your existing Marvin account โ sign in with your organization's credentials (including SSO) and your recordings sync straight into the same projects and files your team already uses on the web. Everything you capture is private to your workspace.
Screenshots
Verdict
Decode and HeyMarvin are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Decode | HeyMarvin |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPod โ better |
| Requires iOS | 16.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 194 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Bharat Shekhawat | Equafin Corp |
In-app purchases
Decode
No in-app purchases
HeyMarvin
No in-app purchases








