# Library Calculator vs Reading Timer

The clearest difference is ads: Library Calculator at none against Reading Timer's shown. Reading Timer's advantage is ratings volume (21 vs 1) and update cadence (every 2 weeks vs monthly). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Library Calculator sells 1 one-off in-app purchase and Reading Timer sells 1 in-app purchase, starting at $1.99 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 Library Calculator against 4.9 for Reading Timer. That said, the two scores are not equally well evidenced: Reading Timer has 21 ratings behind it against 1, so its average is the more settled of the two.

Library Calculator ships an update monthly, Reading Timer every 2 weeks. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Library Calculator | Reading Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/library-calculator/id6746132040/reviews)** | [4.9 (21 ratings)](https://appshunter.io/ios/app/reading-timer-time-and-pages/id6751752917/reviews) |
| Number of ratings | 1 | **21** |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 3 MB | 81 MB |
| Requires iOS | 18.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Logan Voss](https://appshunter.io/developer/1813258380) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### Library Calculator

[App page](https://appshunter.io/ios/app/library-calculator/id6746132040)

This app helps you manage your reading goals by calculating the daily pages needed to finish a book by its due date. Easily input your current progress and the book's total pages to get a clear reading schedule.

**Highlights:** Daily page calculation for due dates, Update current page number, Recalculate daily reading count, Simple and quick interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reading Notifications | $0.99 | one-time |


### Reading Timer

[App page](https://appshunter.io/ios/app/reading-timer-time-and-pages/id6751752917)

Track your reading time and pages with a quick timer. Organize your personal library, view detailed reading statistics, and stay motivated with a visual reading heatmap.

**Highlights:** Quick reading timer, Page tracking, Personal library management, Reading statistics and reports, Reading heatmap for streaks, Track reading pace

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reading Timer Pro | $1.99 | per month |


## Frequently asked questions

### Is Library Calculator free?

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

### Is Reading Timer free?

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

### Which has better reviews, Library Calculator or Reading Timer?

Library Calculator is rated higher. Library Calculator averages 5.0 out of 5 from 1 ratings, while Reading Timer averages 4.9 from 21 ratings.

### Do Library Calculator or Reading Timer have ads?

Reading Timer shows ads; Library Calculator does not.

### Which is updated more often, Library Calculator or Reading Timer?

Library Calculator ships an update monthly, and Reading Timer every 2 weeks. Most recently, Library Calculator was updated on October 28, 2026 and Reading Timer 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.*