# Course Library vs Circular Segment Calculator

The clearest difference is price: Course Library at Free against Circular Segment Calculator's $2.99. Course Library also leads on update cadence (monthly vs every 23 months) and iOS requirement (9.0 vs 16.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Course Library is free to download; Circular Segment Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Course Library against 5.0 for Circular Segment Calculator. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Course Library ships an update monthly, Circular Segment Calculator every 23 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Course Library | Circular Segment Calculator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/course-library/id1534167172/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/circular-segment-calculator/id1628037532/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 23 months |
| Monetization | **Free** | Paid |
| Size | 41 MB | 1 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [cvilink](https://appshunter.io/developer/519083297) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### Course Library

[App page](https://appshunter.io/ios/app/course-library/id1534167172)

Access a comprehensive digital learning library for K-12, higher education, and corporate training. Browse available courses or request new ones to be developed. Start your learning journey across various educational levels.

**Highlights:** Full-scale learning library, Content for K-12, Higher Ed, Corporate Training, Course browsing and selection, Course request feature, Digital content resources

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

**In-app purchases:** none


### Circular Segment Calculator

[App page](https://appshunter.io/ios/app/circular-segment-calculator/id1628037532)

Instantly calculate all six properties of any circular segment by entering just two values. Ideal for students, engineers, and makers needing quick, reliable geometry solutions on the go.

**Highlights:** Calculate radius, angle, arc length, chord length, height, and area, Two input modes: Angle & Radius or Chord & Height, Real-time results update as you type, Step-by-step formula explanations, Tap to copy results, Supports multiple units and dark mode

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

**In-app purchases:** none


## Frequently asked questions

### Is Course Library free?

Course Library is free to download, with no in-app purchases.

### Is Circular Segment Calculator free?

Circular Segment Calculator costs $2.99, with no in-app purchases.

### Which has better reviews, Course Library or Circular Segment Calculator?

Course Library and Circular Segment Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Course Library or Circular Segment Calculator have ads?

Neither Course Library nor Circular Segment Calculator shows ads.

### Which is updated more often, Course Library or Circular Segment Calculator?

Course Library ships an update monthly, and Circular Segment Calculator every 23 months. Most recently, Course Library was updated on October 1, 2026 and Circular Segment Calculator on October 2, 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.*