# Zen Book Tracker & Reading Log vs Devour

The clearest difference is ads: Zen Book Tracker & Reading Log at none against Devour's shown. Devour's advantage is update cadence (weekly vs monthly) and iOS requirement (13.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Zen Book Tracker & Reading Log sells 2 in-app purchases, starting at $1.99 per 7 days and Devour sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Zen Book Tracker & Reading Log ships an update monthly, Devour weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Zen Book Tracker & Reading Log | Devour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/devour-read-faster/id6758223988/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 30 MB |
| Requires iOS | 26.0 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Karandeep Singh](https://appshunter.io/developer/1516651531) | [Brett Cassidy](https://appshunter.io/developer/1821458102) |

## What reviewers say

### Zen Book Tracker & Reading Log

[App page](https://appshunter.io/ios/app/zen-book-tracker-and-reading-log/id6736579916)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Plus Weekly | $1.99 | per 7 days |
| Zen Plus Yearly | $29.99 | per year |


### Devour

[App page](https://appshunter.io/ios/app/devour-read-faster/id6758223988)

This app helps you read books and articles significantly faster using a technique that displays words one at a time. Import various file types and web content, then adjust your reading speed. Track progress, set goals, and organize your library with this efficient reading tool.

**Highlights:** RSVP speed reading technology, Import EPUB, PDF, web articles, and more, Adjustable speed control (100-1000+ WPM), Built-in speed test, Progress tracking and automatic saving, Reading statistics and daily goals, Smart library organization, iCloud sync

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is Zen Book Tracker & Reading Log free?

Zen Book Tracker & Reading Log is free to download, with in-app purchases available.

### Is Devour free?

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

### Do Zen Book Tracker & Reading Log or Devour have ads?

Devour shows ads; Zen Book Tracker & Reading Log does not.

### Which is updated more often, Zen Book Tracker & Reading Log or Devour?

Zen Book Tracker & Reading Log ships an update monthly, and Devour weekly. Most recently, Zen Book Tracker & Reading Log was updated on October 30, 2026 and Devour on October 31, 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.*