Cognitive Physics vs Codex Relay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cognitive Physics
This app transforms your device into a truth-seeking instrument by training a personal AI to research alongside you. It guides you to ask better questions, verify claims, and build a permanent knowledge base from your imported materials. Designed for serious workflows, it focuses on observable learning processes rather than just providing answers.
- Train your own AI from scratch
- Research like a scientist
- Ask questions with citations
- Build a permanent knowledge base
- Multi-agent intelligence
- Automatic paper generation
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Cognitive Physics began as a single, hard-edged question: How do mind and matter belong to the same set of laws? That question led to years of work in Cognitive Physics—and eventually to something tangible. Something you can carry. Something you can use every day. This app runs on Systemic Narrative Integration (SNI), a research technology inspired by how the great minds of physics search for structure inside uncertainty. SNI treats learning as a disciplined process. It measures coherence, tracks uncertainty, and when something is incomplete, it refuses cleanly instead of pretending. The goal is not to sound intelligent—it’s to behave honestly. Cognitive Physics turns your device into a truth-seeking instrument, not a chat toy. Inside the app lives a real AI system designed to grow with you. You don’t just use an assistant—you train your own AI from scratch to research alongside you. It learns from the material you import, adapts based on what you approve or reject, and improves through structured feedback. Rather than dumping answers, it behaves like a teacher—guiding you to ask better questions, build valid requests, verify claims, and develop the habits that lead to real understanding. This is a personal research lab where intelligence isn’t a costume—it’s a process you can observe, shape, and refine. A place where mind and matter meet as measurable structure. A place where your AI doesn’t just talk—it learns the way a serious system should: carefully, transparently, and with you in the loop. What You Can Do with Cognitive Physics Train Your Own AI • Build a personal AI from scratch using your own PDFs, notes, links, and research • Learn through approval/rejection—not blind consumption • Structured feedback improves behavior over time • No forced answers, no hallucinated confidence Research Like a Scientist • Live web, RSS, and paper discovery • Duplicate prevention and source tracking • Date, time, year, and origin preserved for every finding • Automatic evaluation using coherence and entropy signals Ask Questions with Citations • Ask questions directly against your own library • Answers are grounded in retrieved sources • Clickable citations open the exact passage used • If evidence is missing, the app tells you—honestly Build a Permanent Knowledge Base • Import and manage PDFs • Automatic text extraction and semantic search • Quality-based organization (high, medium, low, trash) • Everything stored locally and permanently Multi-Agent Intelligence • Specialized agents for planning, coding, reviewing, testing, and optimizing • Agents coordinate tasks and self-correct • Offline learning from success and failure patterns • Designed for serious workflows, not roleplay Automatic Paper Generation • LaTeX papers generated from accumulated research • Offline diagram and figure creation • Reproducible outputs tied to your source library • Built for real academic and technical use Measure Learning, Not Just Output • Coherence and entropy tracked for every interaction • Structural vs semantic uncertainty separated • Refusal is treated as signal, not failure • Stability and dispersion trends visualized over time Offline-First, Instrument-Grade Design • On-device embeddings and local inference • Works without internet once your library exists • No cloud dependency required • Built with safety, performance, and transparency in mind Cognitive Physics is not about replacing your thinking. It’s about giving you a system that teaches you how to think better, alongside an AI that learns the same way you do.
Codex Relay
Manage your Codex workflow remotely from your phone. Track active threads, send prompts, review output, and respond to requests. Designed for developers to stay connected to their work without being at their desk.
- Follow Codex conversations remotely
- Send prompts and follow-up instructions
- Respond to approval and input requests
- Attach images for context
- Review workspace and thread activity
- Manage relay server state
- Check usage statistics
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Codex Relay brings your Codex workflow to your phone. Connect to your local Codex Relay server and keep track of active threads, responses, approvals, and workspace activity without staying at your desk. Send follow-up prompts, review assistant output, attach images for context, and respond when Codex needs input before it can continue. Built for developers who use Codex as part of real work, Codex Relay keeps the mobile experience focused, fast, and close to the terminal workflow. Key features: - Follow Codex conversations from your phone - Send prompts and follow-up instructions - Respond to approval and input requests - Attach images as context - Review workspace and thread activity - Manage connected relay server state - Check usage - Designed for local developer workflows Codex Relay requires a running Codex Relay server on your computer. Start the server with `npx codex-relay@latest`, then connect your device over your local network. GitHub: https://github.com/gronxb/codex-relay Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Cognitive Physics at 5.0 against Codex Relay's 4.2. Codex Relay's advantage is update cadence (every 9 days vs monthly) and ratings volume (56 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cognitive Physics holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Codex Relay has 56 ratings behind it against 2, so its average is the more settled of the two.
Cognitive Physics ships an update monthly, Codex Relay every 9 days. The most recent releases landed on September 28, 2026 and October 12, 2026 respectively.
| Parameter | Cognitive Physics | Codex Relay |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.2 (56 ratings) |
| Positive reviews | — | 63.2% of reviews |
| Number of ratings | 2 | 56 — better |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #79 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.2 | 16.4 — better |
| Further details — not scored | ||
| Size | 142 MB | 118 MB |
| Age rating | 17+ | 17+ |
| Developer | Joel Pena Munoz | Kang Sungyu |
Customer experience
Cognitive Physics
Codex Relay
In-app purchases
Cognitive Physics
No in-app purchases
Codex Relay
No in-app purchases
Questions
Is Cognitive Physics free?
Is Codex Relay free?
Which has better reviews, Cognitive Physics or Codex Relay?
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