RTL Fixer vs WordByWord
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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.
WordByWord
This app helps you read faster by displaying text one word at a time in a fixed position. It supports various text formats like PDFs, EPUBs, and web articles, allowing you to adjust reading speed up to 1200 WPM. All processing is done locally on your device for privacy.
- Reads text one word at a time (RSVP)
- Supports PDFs, EPUBs, web articles, and copied text
- Adjustable reading speed from 100 to 1200 WPM
- Punctuation and sentence endings are respected
- Progress is saved for each document
- Includes three classic books
Read full descriptionHide full description
Read faster without moving your eyes. WordByWord uses RSVP to display text one word at a time in a fixed position, helping you move through books, PDFs and articles at up to 1,200 WPM. Completely free. No subscriptions, purchases, ads, accounts, analytics or tracking. BRING YOUR OWN TEXT • PDF and EPUB from Files, chapters kept intact • A printed page, photographed and recognised on the device • Anything you have copied • An article from the web, by address • Share text, a link or a document into the app from anywhere in iOS • Send the page you are reading in Safari straight to your library READING • 100 to 1200 words per minute, in steps of 25 • Long words and sentence ends hold a little longer, so punctuation is still felt rather than flattened • Each start eases in over the first sixteen words instead of beginning at full speed • Your place is kept in every document • Chapter list, rewind, and pause at any moment Nothing leaves your iPhone. No analytics, no tracking, no server. The only network request the app ever makes is fetching an article from an address you typed yourself. Three books are included to begin with: Alice's Adventures in Wonderland, Frankenstein, and Moby-Dick.
Screenshots
Verdict
The clearest difference is rating: WordByWord at 5.0 against RTL Fixer's 4.7. WordByWord also leads on update cadence (every 9 days vs every 3 weeks). RTL Fixer's advantage is device support (4 vs 1) and ratings volume (3 vs 1). 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.
WordByWord holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
RTL Fixer ships an update every 3 weeks, WordByWord every 9 days. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.
| Parameter | RTL Fixer | WordByWord |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | SHAHAB ALAMI | Tehran Hamidzada |
Customer experience
RTL Fixer
WordByWord
In-app purchases
RTL Fixer
No in-app purchases
WordByWord
No in-app purchases
Questions
Is RTL Fixer free?
Is WordByWord free?
Which has better reviews, RTL Fixer or WordByWord?
Do RTL Fixer or WordByWord have ads?
Which is updated more often, RTL Fixer or WordByWord?
Other comparisons















