Codex Relay vs HTML Runner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
HTML Runner
Instantly edit and run HTML, CSS, and JavaScript projects directly on your mobile device. Generate code with AI tools, paste it in, and preview your webpages in real-time without needing a desktop or server setup. Ideal for testing, demos, and learning web development.
- Live HTML Preview
- Project Workspace
- HTML, CSS & JavaScript Support
- Code Formatting
- Import Local Files
- Offline Ready
- AI Code Integration
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HTML Runner lets you instantly open, edit and run HTML projects directly on your iPhone and iPad. Built for the new AI coding workflow. Generate webpages with AI tools, paste the code into a project, and preview it instantly inside the app. No server setup. No desktop required. No complicated IDE. Just paste your code and run. Perfect for: • AI-generated websites • HTML/CSS/JS testing • Webpage preview • Frontend demos • Learning web development • Offline HTML viewing Key Features Live HTML Preview Run webpages instantly with the built-in browser. Project Workspace Organize files with folders and multi-file project support. HTML, CSS & JavaScript Support Create and edit complete web projects directly on mobile. Code Formatting Automatically format and clean up your code. Import Local Files Open and manage HTML-related files easily. Offline Ready Preview local webpages without deployment or internet access. Made for Beginners Simple and lightweight workflow for users who want to run AI-generated code. Whether you're previewing AI-generated websites, testing frontend ideas, or learning web development, HTML Runner gives you the fastest way to run web projects on mobile. Subscription Info: Subscriptions auto-renew unless turned off at least 24 hours before the end of the period. Renewal fees will be charged within 24 hours before the period ends. Manage or cancel subscriptions in your App Store account settings. Support & Feedback: Email: longlong13578@icloud.com User Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://outgoing-cheese-e3b.notion.site/Keyword-Highlighter-2b2b209c98f980e7b250c3bc0e6b6546Subscription Info: Subscriptions auto-renew unless turned off at least 24 hours before the end of the period. Renewal fees will be charged within 24 hours before the period ends. Manage or cancel subscriptions in your App Store account settings. Support & Feedback: Email: longlong13578@icloud.com User Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://outgoing-cheese-e3b.notion.site/Html-Studio-36cb209c98f9808aad51db25979e06da
Screenshots
Verdict
The clearest difference is rating: HTML Runner at 4.8 against Codex Relay's 4.2. HTML Runner also leads on review sentiment (100% vs 71%). Codex Relay's advantage is in-app purchases (none vs 3) and ratings volume (54 vs 5). On price, update cadence, ads and chart position 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. HTML Runner sells 3 in-app purchases, starting at $0.99 per month. Codex Relay asks for nothing beyond the download.
HTML Runner holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Codex Relay has 54 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 71% of Codex Relay's written reviews are positive against 100% of HTML Runner's.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | Codex Relay | HTML Runner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (54 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 70.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 54 — better | 5 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #75 — better | #80 |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 111 MB | 13 MB |
| Age rating | 17+ | 4+ |
| Developer | Kang Sungyu | 家贺 万 |
Customer experience
Codex Relay
HTML Runner
In-app purchases
Codex Relay
No in-app purchases
HTML Runner
- Premium Monthly$0.991 Month
- Premium Yearly$3.991 Year
- Premium Lifetime$5.99









