# Calibre View vs DNF

The clearest difference is update cadence: DNF at every 5 days against Calibre View's every 6 weeks. DNF also leads on iOS requirement (16.4 vs 26.1). Calibre View's advantage is monetization model (free vs freemium) and ratings volume (6 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Calibre View sells 3 one-off in-app purchases and DNF sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Calibre View against 5.0 for DNF. That said, the two scores are not equally well evidenced: Calibre View has 6 ratings behind it against 1, so its average is the more settled of the two.

Calibre View ships an update every 6 weeks, DNF every 5 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calibre View | DNF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/calibre-view/id6756579355/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dnf-social-book-tracker/id6804393182/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 38 MB | 68 MB |
| Requires iOS | 26.1 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [DANIEL EDWARD LAMSON](https://appshunter.io/developer/1861529617) | [Moimaere OU](https://appshunter.io/developer/1665377006) |

## What reviewers say

### Calibre View

[App page](https://appshunter.io/ios/app/calibre-view/id6756579355)

Browse and manage your Calibre ebook library on iOS devices. Connect to cloud storage or local files for fast searching, sorting, and filtering. Optimized for large collections and works offline once downloaded.

**Highlights:** Connect to cloud storage (Dropbox, Google Drive, OneDrive, iCloud, WebDAV), Browse library with metadata only, Optimized for large libraries (15,000+ books), Customizable book list columns and sorting, Fast search and filtering by tags, authors, series, Download books locally for offline reading, Supports multiple libraries and quick switching

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### DNF

[App page](https://appshunter.io/ios/app/dnf-social-book-tracker/id6804393182)

This app allows users to track their reading, share thoughts on books in real-time, and connect with other readers. It also offers a library of public domain books to read within the app and tools for organizing personal book lists and setting reading goals.

**Highlights:** Track reading progress, Share real-time book thoughts, Discover like-minded readers, Create custom book lists, Read public domain books in-app, Set reading goals and track stats, Import and export book library

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dnf Pro Monthly | $6.99 | per month |
| dnf Pro Yearly | $39.99 | per year |
| dnf Founding Reader | $99.99 | one-time |


## Frequently asked questions

### Is Calibre View free?

Calibre View is free to download, with in-app purchases available.

### Is DNF free?

DNF is free to download, with in-app purchases available.

### Which has better reviews, Calibre View or DNF?

Calibre View and DNF are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do Calibre View or DNF have ads?

Neither Calibre View nor DNF shows ads.

### Which is updated more often, Calibre View or DNF?

Calibre View ships an update every 6 weeks, and DNF every 5 days. Most recently, Calibre View was updated on October 30, 2026 and DNF on November 6, 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.*