Decode vs last30days: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Decode and last30days — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Decode

Entropik Technologies

Freemium

A human insights platform that uses emotion AI, webcam eye tracking, and predictive models to test creative, products, and experiences before launch.

Emotion AI Measurement: Face emotion, voice emotion, and text sentiment analysis reveal how respondents actually feel during a study rather than only what they report in an answer.
Webcam Eye Gaze Tracking: Real eye tracking runs through a participant's own webcam with zero hardware, producing attention heatmaps that show where people look first and what they miss.
AI Creative Insights: Neuro AI predicts attention, emotional resonance, brand recall, and conversion impact for ad creative, packaging, OOH, and web layouts before media spend is committed.
Synthetic Audience: Build reusable synthetic personas and compare how each creative performs persona by persona ahead of fielding a study with real respondents.
AI Moderator: Runs moderated and unmoderated interviews at scale, then extracts themes, emotions, and supporting evidence from raw interview and video feedback automatically.
Shopper and Shelf Simulation: Simulates real-world shelf and pack testing with attention heatmaps, shelf visibility analysis, planogram optimization, and purchase-intent prediction.
UX Research Suite: Prototype testing, unmoderated task studies, usability and wireframe testing, card and tree sorting, and live website and app testing, each enriched with gaze and emotion data.
Global Respondent Panel: Access to more than 103 million respondents worldwide, or bring your own panel free of charge on any plan.

Pre-Flight Ad Testing: Comparing creative variations and messaging options to predict which version earns attention and recall before buying media.
Packaging and Shelf Decisions: Testing pack designs and planograms in a simulated retail environment to forecast visibility and purchase intent.
Product Concept Validation: Screening product concepts, storyboards, and innovation ideas for early-stage market fit before committing development resources.
UX Friction Discovery: Running prototype and usability studies where webcam eye tracking and emotion signals expose confusion users cannot articulate.
Qualitative Research at Scale: Using the AI Moderator to conduct and synthesize many interviews into structured themes instead of manual transcript coding.
Brand Tracking and Price Testing: Running recurring consumer studies on brand perception, pricing, and the customer journey across multiple markets.

mvanhorn

Free

An AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web, then synthesizes a scored, grounded brief.

Multi-Source Search: Searches Reddit, Hacker News, X, YouTube, TikTok, Polymarket, and the web in parallel.
Engagement Scoring: Ranks results by upvotes, likes, transcripts, and real-money Polymarket odds instead of editorial picks.
AI Judge Synthesis: An agent synthesizes all sources into a single grounded brief.
Broad Host Support: Installs in Claude Code, Codex, Cursor, Copilot, Gemini CLI, and 50+ Agent Skills hosts.
Zero-Config Start: Reddit, HN, Polymarket, and GitHub work immediately with no setup.
Setup Wizard: Unlocks X, YouTube, and TikTok sources in about 30 seconds.

Trend Research: Quickly understand what people are saying about a topic across social platforms.
Market Sentiment: Combine social engagement with Polymarket odds to gauge real sentiment.
Content Discovery: Surface the most-engaged posts and videos on a subject.
Competitive Intelligence: Track recent discussion of a product or company across communities.
Briefing Generation: Produce a single grounded summary for a question instead of manual searching.