# Leather Inventory vs Unlocka

The clearest difference is in-app purchases: Unlocka at none against Leather Inventory's 1. Unlocka also leads on iOS requirement (16.4 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Leather Inventory sells 1 one-off in-app purchase. Unlocka asks for nothing beyond the download.

Leather Inventory ships an update every 6 days, Unlocka weekly. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Leather Inventory | Unlocka |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Size | 17 MB | 69 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Brett Gneiting](https://appshunter.io/developer/969850873) | [ito tsubasa](https://appshunter.io/developer/1640855532) |

## What reviewers say

### Leather Inventory

[App page](https://appshunter.io/ios/app/leather-inventory/id6745101557)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $5.99 | one-time |


### Unlocka

[App page](https://appshunter.io/ios/app/unlocka-achievement-tracker/id6811425548)

**In-app purchases:** none


## Frequently asked questions

### Is Leather Inventory free?

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

### Is Unlocka free?

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

### Do Leather Inventory or Unlocka have ads?

Neither Leather Inventory nor Unlocka shows ads.

### Which is updated more often, Leather Inventory or Unlocka?

Leather Inventory ships an update every 6 days, and Unlocka weekly. Most recently, Leather Inventory was updated on October 16, 2026 and Unlocka on October 13, 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.*