Sync vs WordByWord
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sync
Securely store, access, and share your files with end-to-end encryption. This cloud storage solution allows you to sync data across all your devices and collaborate with others through shared folders. Protect your sensitive information with robust privacy features.
- 5 GB free secure cloud storage
- Access files from any device
- Secure file sharing via links
- Collaborate with shared folders
- End-to-end encryption
- Access controls
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Sync’s encrypted cloud storage keeps your files safe, secure and private. Access your files from all of your computers and devices easily, and share your files securely with anyone. Features: * Get 5 GB of secure cloud storage free * Access files stored on any computer or device, from your phone or tablet * Upload your photos and videos to Sync * Send large files easily with links * Collaborate and share with teams through shared folders * Protect your files with built-in encryption and access controls How Sync protects your privacy: Sync's end-to-end encrypted cloud storage ensures that only you can access your data. We can't read your files - nor would we want to - ensuring that your documents, photos and videos are safeguarded from unauthorized access. We'd love your feedback! Contact us using the support link below.
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
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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 Sync's 4.2. WordByWord also leads on update cadence (every 9 days vs monthly). Sync's advantage is ratings volume (821 vs 1) and device support (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 4.2. That said, the two scores are not equally well evidenced: Sync has 821 ratings behind it against 1, so its average is the more settled of the two.
Sync ships an update monthly, WordByWord every 9 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | Sync | WordByWord |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (821 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 51.1% of reviews | — |
| Number of ratings | 821 — better | 1 |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Sync.com Inc. | Tehran Hamidzada |
Customer experience
Sync
WordByWord
Bugs and requests
Sync
Reported bugs
5 issues- Unreliable camera roll backup
- Inconsistent file sync across devices
- Frequent app crashes and freezes
- Inability to access offline files
- Sync issues when switching devices
Requested features
5 requests- Improved iOS app integration with Files app
- Video playback and streaming support
- Bulk file management (rename, move, delete)
- Advanced sharing options and controls
- Better background sync for photos/videos
WordByWord
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sync
No in-app purchases
WordByWord
No in-app purchases
