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

A side-by-side comparison of Decode and Proofly — 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.

onderceylan (Proofly)

Free

Lightweight Chrome extension for on-device, privacy-first AI grammar, proofreading and writing assistance that works offline.

On-device Proofreading: Performs grammar, punctuation and style checks locally on the user's machine so text never leaves the device.
Offline Functionality: Full proofreading and suggestion capabilities work without an internet connection, enabling use in restricted or disconnected environments.
Privacy-first Design: Architected to avoid server-side text processing, minimizing data exposure and complying with high privacy expectations and sensitive workflows.
Lightweight Browser Extension: Small footprint extension for Chrome designed to be non-invasive in the page UI and to avoid heavy resource usage.
Real-time Writing Assistance: Provides instantaneous suggestions and corrections within browser text fields and editors while typing.
Open-source Repository: Source code is published on GitHub, allowing inspection, auditing, and self-hosted or unpacked-install options for advanced users.
On-device grammar correction and proofreading (no network calls)
Runs offline for total privacy
Lightweight, non-invasive browser extension UI
Distributed via Chrome Web Store and source on GitHub
Can be installed as an unpacked extension from source
Maintained releases (versioned GitHub releases)

Composing and proofreading sensitive emails or legal drafts directly in Chrome while ensuring no text leaves the device.
Editing documents and essays offline (e.g., on airplanes or in secure environments) with full grammar and style suggestions.
Privacy-conscious professionals who require local-only language checks for proprietary or confidential content.
Students and writers who want instant, lightweight grammar corrections in browser-based editors without subscribing to cloud services.
Teams or enterprises that prefer to audit and deploy browser extensions from source (unpacked or internal store) for tighter control.
Real-time grammar and spelling checks while composing emails or social posts in the browser
Proofreading sensitive or private documents without sending text to external servers
Offline writing assistance in environments without internet connectivity
Deploying in privacy-conscious workflows or on shared devices