# Calibre Sync vs Ovue for Seerr

The clearest difference is rating: Calibre Sync at 3.9 against Ovue for Seerr's 3.4. Calibre Sync also leads on in-app purchases (none vs 2) and ratings volume (54 vs 5). Ovue for Seerr's advantage is price ($1.99 vs $4.99). On review sentiment, update cadence and ads there is nothing between them.

Calibre Sync costs $4.99 and Ovue for Seerr $1.99 up front. Ovue for Seerr sells 2 in-app purchases, starting at $0.99 per month. Calibre Sync asks for nothing beyond the download.

Calibre Sync holds the better App Store score, 3.9 against 3.4. That said, the two scores are not equally well evidenced: Calibre Sync has 54 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 62% of Calibre Sync's written reviews are positive against 67% of Ovue for Seerr's, so the app with the better star average is not the one people write more warmly about.

Calibre Sync ships an update weekly, Ovue for Seerr fortnightly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Calibre Sync | Ovue for Seerr |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | **[3.9 (54 ratings)](https://appshunter.io/ios/app/calibre-sync/id1609138078/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/ovue-for-seerr/id6581485306/reviews) |
| Number of ratings | **54** | 5 |
| Positive reviews | 62.4% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 136 MB | 4 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DUONG THUY PHAM](https://appshunter.io/developer/1795008858) | [Sayan Goswami](https://appshunter.io/developer/1724985919) |

## What reviewers say

### Calibre Sync

[App page](https://appshunter.io/ios/app/calibre-sync/id1609138078)

Access and manage your Calibre ebook libraries from various cloud services or wirelessly connect to your desktop. Browse, search, download, and organize your books on your device. Supports multiple libraries and accounts.

**Highlights:** Access Calibre libraries on cloud services, Wireless connection to Calibre, Supports multiple libraries and accounts, Browse, search, and download books, Organize books with filters and sorting, Send books to Kindle

**Features:** macOS Compatibility

**In-app purchases:** none


### Ovue for Seerr

[App page](https://appshunter.io/ios/app/ovue-for-seerr/id6581485306)

Manage your private media server on iOS. Browse, discover, and request new movies and shows. Seamlessly integrates with your Plex ecosystem for streamlined media management.

**Highlights:** Native iOS experience, Browse, request, and manage media, Discover new titles, Integrates with Plex, Intuitive interface

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Big Heart | $0.99 | per month |
| Massive Heart | $1.99 | per month |


## Frequently asked questions

### Is Calibre Sync free?

Calibre Sync costs $4.99, with no in-app purchases.

### Is Ovue for Seerr free?

Ovue for Seerr costs $1.99, and also offers in-app purchases.

### Which has better reviews, Calibre Sync or Ovue for Seerr?

Calibre Sync is rated higher. Calibre Sync averages 3.9 out of 5 from 54 ratings, while Ovue for Seerr averages 3.4 from 5 ratings.

### Do Calibre Sync or Ovue for Seerr have ads?

Neither Calibre Sync nor Ovue for Seerr shows ads.

### Which is updated more often, Calibre Sync or Ovue for Seerr?

Calibre Sync ships an update weekly, and Ovue for Seerr fortnightly. Most recently, Calibre Sync was updated on September 24, 2026 and Ovue for Seerr on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*