chat4000 vs RTL Fixer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
chat4000
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chat4000 is the iPhone companion for OpenClaw, designed to feel faster, cleaner, and more polished to use every day. Use chat4000 to: • Connect to your OpenClaw setup from iPhone • Send and receive messages across your paired devices • Record and send voice messages • Receive notifications when new messages arrive • Quickly jump back into conversations with shortcuts on supported devices chat4000 gives you a more refined mobile experience for OpenClaw, with secure paired-device communication, responsive chat, and a simpler interface built for iPhone. An existing OpenClaw setup is required for full functionality.
RTL Fixer
This extension ensures right-to-left text displays correctly in AI chat interfaces without altering the overall layout. It intelligently handles mixed-language content and code blocks, offering a seamless experience for users of languages like Persian, Arabic, and Hebrew.
- Correct right-to-left text alignment
- Preserves interface layout
- Handles mixed-language content
- Supports code blocks
- Customizable site support
- Local data processing
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RTL Fixer fixes a small but constant frustration: every Safari extension I tried for right-to-left text in AI chat apps either did nothing, or flipped the entire interface and broke the sidebar, buttons, and input fields. So I built one that doesn't. When you write to Claude or ChatGPT or any site that you add in Persian, Arabic, Hebrew, or another right-to-left language, the reply renders with right-aligned text. When you write in English, the reply stays left-aligned. Code blocks always stay left-aligned. The interface itself never flips. HOW IT WORKS RTL Fixer only touches markdown content: paragraphs, list items, headings, blockquotes, table cells, and similar semantic elements. It never touches the sidebar, the message composer, or any other interface element. There are zero platform-specific selectors, so platform updates do not break it. Direction is detected using the first strong directional character in each paragraph. A paragraph that starts with English and contains Arabic stays left-aligned. A paragraph that starts with Persian and contains an English variable name stays right-aligned. Numbers, punctuation, and emoji are treated as neutral. SUPPORTED SITES - Claude (claude.ai) - ChatGPT (chatgpt.com) You can add any other site from the toolbar popup. Custom sites work the same way: enable the extension, type the hostname, and reload. PRIVACY RTL Fixer does not collect, transmit, or store any data. Everything happens locally in your Safari browser. There are no analytics, no advertising identifiers, no cookies, and no third-party SDKs. Your preferences (which sites you have enabled) are stored locally in Safari and never leave your device. The extension only runs on sites you have explicitly enabled, either from the built-in list or by adding them yourself. REQUIREMENTS - macOS with Safari 17 or later - iOS, iPadOS 17 with Safari LANGUAGES The extension itself is in English. The text it processes can be in any right-to-left language: Persian (Farsi), Arabic, Hebrew, Urdu, Yiddish, and others.
Screenshots
Verdict
The clearest difference is device support: RTL Fixer at 4 against chat4000's 2. RTL Fixer also leads on iOS requirement (15.4 vs 17.0). On price, update cadence, ads and in-app purchases 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.
chat4000 ships an update fortnightly, RTL Fixer every 3 weeks. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.
| Parameter | chat4000 | RTL Fixer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, Mac | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 15.4 — better |
| Further details — not scored | ||
| Size | 59 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | NeonNode | SHAHAB ALAMI |
In-app purchases
chat4000
No in-app purchases
RTL Fixer
No in-app purchases









