# one more layer vs Calibre Connector

The clearest difference is update cadence: Calibre Connector at every 4 days against one more layer's every 9 days. one more layer's advantage is iOS requirement (13.0 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

one more layer ships an update every 9 days, Calibre Connector every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | one more layer | Calibre Connector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (13 ratings)](https://appshunter.io/ios/app/calibre-connector/id6477761553/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 23.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | — | Free |
| Size | 474 MB | 3 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [sbp GmbH](https://appshunter.io/developer/1483627301) | [Phillip Walker](https://appshunter.io/developer/1723891603) |

## What reviewers say

### one more layer

[App page](https://appshunter.io/ios/app/one-more-layer/id1483627302)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calibre Connector

[App page](https://appshunter.io/ios/app/calibre-connector/id6477761553)

This application facilitates the transfer of book information from the Calibre software to your Apple device. It enables easy access to your digital library on the go.

**Highlights:** Download Calibre information, Sync to iDevice, Access digital library, Supports iPhone and iPad

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

**In-app purchases:** none


## Frequently asked questions

### Is one more layer free?

one more layer is free to download, with no in-app purchases.

### Is Calibre Connector free?

Calibre Connector is free to download, with no in-app purchases.

### Do one more layer or Calibre Connector have ads?

Neither one more layer nor Calibre Connector shows ads.

### Which is updated more often, one more layer or Calibre Connector?

one more layer ships an update every 9 days, and Calibre Connector every 4 days. Most recently, one more layer was updated on November 3, 2026 and Calibre Connector on October 30, 2026.

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