# PowerUp by COUP vs ARC Library

The clearest difference is in-app purchases: ARC Library at none against PowerUp by COUP's 1. ARC Library also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. PowerUp by COUP sells 1 in-app purchase, starting at $5.99 per month. ARC Library asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 4, 2026.

## The numbers

| Metric | PowerUp by COUP | ARC Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arc-library/id6737032389/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 80 MB | 28 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HALCYON DAY PRODUCTIONS PTY LTD](https://appshunter.io/developer/1747434298) | [MBRGI](https://appshunter.io/developer/1335516125) |

## What reviewers say

### PowerUp by COUP

[App page](https://appshunter.io/ios/app/powerup-by-coup/id6502927073)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PowerUp Player | $5.99 | per month |


### ARC Library

[App page](https://appshunter.io/ios/app/arc-library/id6737032389)

Access a wide range of books and track your reading progress for a literacy initiative. Summarize both digital and physical books with intuitive tools. Earn achievements as you work towards your reading goals.

**Highlights:** Extensive book collection, Interactive summaries, Progress tracking, Achievement earning, Summarize physical books

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerUp by COUP free?

PowerUp by COUP is free to download, with in-app purchases available.

### Is ARC Library free?

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

### Do PowerUp by COUP or ARC Library have ads?

PowerUp by COUP shows ads; ARC Library does not.

### Which is updated more often, PowerUp by COUP or ARC Library?

PowerUp by COUP ships an update every 3 weeks, and ARC Library every 3 weeks. Most recently, PowerUp by COUP was updated on October 4, 2026 and ARC Library on October 4, 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.*