# O3 Ozone vs Inventory Tracker Itemlist

The clearest difference is in-app purchases: O3 Ozone at none against Inventory Tracker Itemlist's 10. O3 Ozone also leads on update cadence (every 9 days vs monthly) and iOS requirement (12.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Inventory Tracker Itemlist sells 10 in-app purchases, starting at $2.99 per month. O3 Ozone asks for nothing beyond the download.

O3 Ozone ships an update every 9 days, Inventory Tracker Itemlist monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | O3 Ozone | Inventory Tracker Itemlist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (215 ratings)](https://appshunter.io/ios/app/inventory-tracker-itemlist/id1548649551/reviews)** |
| Number of ratings | — | **215** |
| Positive reviews | — | 52.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 89 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SOFTTECH NETWORK COMPANY LIMITED](https://appshunter.io/developer/1095604731) | [Dabotech Studio d.o.o.](https://appshunter.io/developer/1879780683) |

## What reviewers say

### O3 Ozone

[App page](https://appshunter.io/ios/app/o3-ozone/id1513863222)

**Features:** macOS Compatibility

**In-app purchases:** none


### Inventory Tracker Itemlist

[App page](https://appshunter.io/ios/app/inventory-tracker-itemlist/id1548649551)

Organize and track your belongings with a user-friendly inventory management system. Share locations, categorize items, and find them quickly with advanced search and barcode scanning. Access your data securely in the cloud, even offline, and export for record-keeping.

**Highlights:** Share locations with collaborators, Customizable item categorization, Advanced search functionality, Barcode scanner for quick lookup, Cloud-based syncing and offline access, Export data to CSV

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Itemlist PRO (Monthly) | $2.99 | per month |
| Itemlist PRO (Monthly) | $4.99 | per month |
| Itemlist PRO (Yearly) | $19.99 | per year |
| Itemlist PRO | $19.99 | per year |
| Unlimited Access | $29.99 | per year |
| Press Access (Not for Sale) | Free | one-time |
| Itemlist PRO (Lifetime) | $29.99 | one-time |
| Itemlist PRO (Lifetime) | $49.99 | one-time |
| Itemlist PRO (Lifetime) | $59.99 | one-time |
| Itemlist PRO (Lifetime) | $89.99 | one-time |

**What reviewers like**

- 👍 Excellent for organizing home inventory and tracking items
- 📸 Built-in camera integration for easy photo capture
- 🔄 Seamless cloud syncing across multiple devices
- 💡 Innovative hierarchical container system
- 🎯 Perfect for users with ADHD and organization challenges

**What reviewers complain about**

- 🐛 Email verification system frequently fails
- 📱 No Mac app despite premium pricing
- ⏱️ Excessive clicking required for basic operations
- 🔐 Pro/lifetime membership sharing issues
- 📸 Photo requirement mandatory for all items

**Reported bugs**

- Email verification link not sending or not working
- Pro membership not visible to shared account users
- Barcode scanner inconsistent detection and submission
- Email verification code delivery failures
- Password character restrictions limiting security

**Requested features**

- Manual drag-and-drop reordering of containers and items
- Optional photo uploads instead of mandatory
- Mac application
- Move button in list view for faster item relocation
- Persistent bottom menu to reduce navigation clicks


## Frequently asked questions

### Is O3 Ozone free?

O3 Ozone is free to download, with no in-app purchases.

### Is Inventory Tracker Itemlist free?

Inventory Tracker Itemlist is free to download, with in-app purchases available.

### Do O3 Ozone or Inventory Tracker Itemlist have ads?

Neither O3 Ozone nor Inventory Tracker Itemlist shows ads.

### Which is updated more often, O3 Ozone or Inventory Tracker Itemlist?

O3 Ozone ships an update every 9 days, and Inventory Tracker Itemlist monthly. Most recently, O3 Ozone was updated on November 3, 2026 and Inventory Tracker Itemlist on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*