StareWatch vs ReadGrow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StareWatch
Upload your EPUB ebooks to your iPhone and read them on your Apple Watch using a unique RSVP format optimized for the smaller screen. This app allows for efficient reading directly from your wrist.
- EPUB ebook support
- iPhone to Apple Watch syncing
- RSVP reading format
- Watch-optimized viewing
- Direct wrist reading
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If you own ebooks in EPUB format, upload them to the app on your iPhone, and send them to the companion app on your Apple Watch. Click the book and read in "RSVP" format, specifically designed for watch viewing!
ReadGrow
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ReadGrow is a book-centered reading companion designed for readers who want to retain more from every book they read. Whether you're reading fiction, nonfiction, books in your native language, or books in English, ReadGrow helps you track your reading journey, capture your thoughts, and keep your books, reading progress, and notes together in one place. For readers enjoying books in English, ReadGrow also includes built-in vocabulary collection with automatic IPA pronunciation and definitions, making it easy to expand your vocabulary naturally through reading while preserving the journey of every book you read.
Screenshots
Verdict
The clearest difference is in-app purchases: StareWatch at none against ReadGrow's 1. ReadGrow's advantage is update cadence (every 4 days vs every 6 months). On price, ads, device support and iOS requirement 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. ReadGrow sells 1 one-off in-app purchase. StareWatch asks for nothing beyond the download.
StareWatch ships an update every 6 months, ReadGrow every 4 days. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.
| Parameter | StareWatch | ReadGrow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | awabi | Chih-Yen Kuo |
In-app purchases
StareWatch
No in-app purchases
ReadGrow
- Aged Pu-erh$5.99
