# Quillow vs iResources

The clearest difference is update cadence: iResources at fortnightly against Quillow's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quillow ships an update every 13 months, iResources fortnightly. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Quillow | iResources |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/quillow-book-list-tracker/id1602885135/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 17 MB | 37 MB |
| Requires iOS | **15.2** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pilot Ventures](https://appshunter.io/developer/1602885137) | [LDTS Ltd. Liability Company](https://appshunter.io/developer/1112505411) |

## What reviewers say

### Quillow

[App page](https://appshunter.io/ios/app/quillow-book-list-tracker/id1602885135)

Easily catalog your book collection with a beautiful, ad-free interface. Search an extensive database to add book details automatically, mark favorites, and organize your library. Access your list across multiple devices with user authentication.

**Highlights:** Elegant and simple UI, Ad-free and no in-app purchases, User authenticated login, Cross-device access, Extensive book database search, Mark and sort favorites, Customizable book sorting and deletion

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

**In-app purchases:** none


### iResources

[App page](https://appshunter.io/ios/app/iresources/id6468934565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quillow free?

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

### Is iResources free?

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

### Do Quillow or iResources have ads?

Neither Quillow nor iResources shows ads.

### Which is updated more often, Quillow or iResources?

Quillow ships an update every 13 months, and iResources fortnightly. Most recently, Quillow was updated on October 30, 2026 and iResources on October 27, 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.*