# World Sounds vs Collection Detection

The clearest difference is price: Collection Detection at Free against World Sounds's $2.99. World Sounds's advantage is iOS requirement (15.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Collection Detection is free to download; World Sounds costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

World Sounds ships an update monthly, Collection Detection every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | World Sounds | Collection Detection |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.4 (8 ratings)](https://appshunter.io/ios/app/collection-detection/id6762622279/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 102 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Obando](https://appshunter.io/developer/818523453) | [STEVEN MATTHEW FIERSTEIN](https://appshunter.io/developer/1894864911) |

## What reviewers say

### World Sounds

[App page](https://appshunter.io/ios/app/world-sounds-detector/id6444348730)

This AI-powered application detects and alerts you to over 300 different sounds, including human noises, animals, and various items. It offers customizable haptic, sound, and push notifications for immediate awareness. Supports 35 languages and is optimized for newer iPhone models.

**Highlights:** AI sound identification, Over 300 sound types, Haptic alerts, Sound alerts, Push notifications, 35 language support

**Features:** Vision Pro support

**In-app purchases:** none


### Collection Detection

[App page](https://appshunter.io/ios/app/collection-detection/id6762622279)

Effortlessly manage your pin collection with bulk uploads, quick tagging, and visual search. Track trades, edit entries, and access your entire archive offline. This tool helps collectors identify duplicates and keep detailed records.

**Highlights:** Bulk upload entire pin boards, Quick tagging for easy searching, Visual duplicate detection, Automatic trade tracking, Offline access to archive, Quick editing of detections

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

**In-app purchases:** none


## Frequently asked questions

### Is World Sounds free?

World Sounds costs $2.99, with no in-app purchases.

### Is Collection Detection free?

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

### Do World Sounds or Collection Detection have ads?

Neither World Sounds nor Collection Detection shows ads.

### Which is updated more often, World Sounds or Collection Detection?

World Sounds ships an update monthly, and Collection Detection every 3 weeks. Most recently, World Sounds was updated on November 3, 2026 and Collection Detection on October 31, 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.*