World Sounds vs Collection Detection
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Sounds
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.
- AI sound identification
- Over 300 sound types
- Haptic alerts
- Sound alerts
- Push notifications
- 35 language support
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Welcome to WorldSounds, this app works with Artificial Intelligence to identify over 300 different types of sounds. When your iPhone detects any sounds selected it will activate a haptic alert, sound alert and push notifications in background. This includes a variety of noises, ranging from human sounds, musical instruments, animals, and various items. - It supports up to 35 languages. - For the best experience, we suggest to use an iPhone 8 or newer.
Collection Detection
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.
- Bulk upload entire pin boards
- Quick tagging for easy searching
- Visual duplicate detection
- Automatic trade tracking
- Offline access to archive
- Quick editing of detections
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Save time by bulk uploading your ENTIRE collection in seconds! No need to take individual photos of each pin. Instantly upload thousands of pins, quick tag for easy searching, scan for what you need, and update your archive based on your trades automatically, wherever, whenever! Available online and offline, completely free, you never have to worry about the wifi at an event again! No separate app login, no notifications, no cross-app tracking, and no ads. Keep better track of your pins with the Collection Detection App! An archive as unique as your collection. It's like having your collection in your pocket! APP FEATURES: - BULK UPLOAD: Bulk upload photos of your collection in seconds with our proprietary detection feature! Just take or upload photos of ENTIRE boards of pins, rather than one pin at a time, and watch the magic hap-pin! Detect pins on crowded and full boards in seconds, saving you hours. Based on your photos of your collection, you have maximum control over your archive. This app is built with unique collectors in mind. Document parts of your collection you couldn't before, such as fantasy, artist-proof, pre-production, unreleased, pre pin trading, and more! There are no limits to what you can archive! Whether at home or at an event, always know the exact pin, quality, and location on your boards to maximize your pin time! - AVAILABLE OFFLINE: Never worry about whether an event will have wifi or will be in a brick building with no service. Everything in your archive is available offline! Trade with confidence knowing Collection Detection is in your pocket. - BULK TAGGING: Bulk tag an entire board or individual pins by whatever you'd like, or not at all! Tagging pins allows you to search and filter by your tags in the future, but is not necessary for the visual-search aspects of the app. The possibilities are endless! - DUPLICATE DETECTOR: Visually search your collection! No more wasting time trying to determine what you have vs what you need. The most important information about your collection is knowing you're not trading for something you already have, and the visual search helps you with that. The checker will show you the closest-matched pins first, so you can scroll and verify whether you already have a pin you're looking to trade for. - TRADE TRACKER: Log trades quickly by taking a photo of the trade as a whole. Identify what's going out vs what's coming in to have your archive updated automatically! Look back at trades you made and see what has been marked as traded and added to your archive. The quickest way to keep track of your pins in real time! - QUICK EDITING: While Collection detection is great, it isn't perfect. Quickly edit incorrect detections from any section of the Collection page. These fast editing techniques save you time to make sure all of your pins have been correctly detected. WHAT DOESN'T COLLECTION DETECTION DO: - Collection Detection is NOT a database of pins; it's more like a virtual bookshelf than a library. - Collection Detection currently does not have pin valuation, but we're working hard to add it! With no database of documented pins and no identification software, there are no limits to what you can have in your collection! WHAT THIS APP MISSES IN INFORMATION, IT MAKES UP FOR IN EASE OF USE. The ability to take photos of whole pages of pins, rather than take one photo of each pin at a time, saves you time when uploading your full collection. Try Collection Detection today!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | World Sounds | Collection Detection |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.4 (8 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | — | 8 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Carlos Obando | STEVEN MATTHEW FIERSTEIN |
Customer experience
World Sounds
Collection Detection
In-app purchases
World Sounds
No in-app purchases
Collection Detection
No in-app purchases
Questions
Is World Sounds free?
Is Collection Detection free?
Do World Sounds or Collection Detection have ads?
Which is updated more often, World Sounds or Collection Detection?
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