# Hooloovoo vs LibrarySorter

The clearest difference is rating: Hooloovoo at 5.0 against LibrarySorter's 1.0. Hooloovoo also leads on in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.5). LibrarySorter's advantage is update cadence (every 4 days vs every 21 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. LibrarySorter sells 1 one-off in-app purchase. Hooloovoo asks for nothing beyond the download.

Hooloovoo holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Hooloovoo ships an update every 21 months, LibrarySorter every 4 days. The most recent releases landed on October 5, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Hooloovoo | LibrarySorter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hooloovoo/id903655999/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/librarysorter/id6458593068/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 2 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pascal Harris](https://appshunter.io/developer/558268582) | [Philippe Weidmann](https://appshunter.io/developer/1367503223) |

## What reviewers say

### Hooloovoo

[App page](https://appshunter.io/ios/app/hooloovoo/id903655999)

This utility app converts colors between various formats like RGB, CMYK, and XYZ. It can identify the closest CSS or Crayola color, import custom palettes, and even capture colors using your device's camera. It's a comprehensive tool for all your color conversion needs.

**Highlights:** Multiple color format conversion (RGB, CMYK, XYZ, etc.), Find closest CSS/Crayola colors, Import custom color palettes, Capture colors with device camera, Supports iOS 7 and newer devices

**Features:** macOS Compatibility

**In-app purchases:** none


### LibrarySorter

[App page](https://appshunter.io/ios/app/librarysorter/id6458593068)

Organize your photo library with intuitive swipe gestures and smart albums. This app uses on-device machine learning to identify and keep the best versions of similar pictures, helping you declutter and free up space. Comparison mode allows for side-by-side viewing to make decisions easier.

**Highlights:** Intuitive swipe gestures for sorting, On-device ML for best photo selection, Automatic Smart Albums, Side-by-side comparison mode, Effortless memory organization, Streamlined user interface

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Library Sorter - Unlimited | $1.99 | one-time |


## Frequently asked questions

### Is Hooloovoo free?

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

### Is LibrarySorter free?

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

### Which has better reviews, Hooloovoo or LibrarySorter?

Hooloovoo is rated higher. Hooloovoo averages 5.0 out of 5 from 1 ratings, while LibrarySorter averages 1.0 from 1 ratings.

### Do Hooloovoo or LibrarySorter have ads?

Neither Hooloovoo nor LibrarySorter shows ads.

### Which is updated more often, Hooloovoo or LibrarySorter?

Hooloovoo ships an update every 21 months, and LibrarySorter every 4 days. Most recently, Hooloovoo was updated on October 5, 2026 and LibrarySorter on September 12, 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.*