# Lockin Security vs Unstack

The clearest difference is in-app purchases: Lockin Security at none against Unstack's 2. Unstack's advantage is update cadence (every 11 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Unstack sells 2 in-app purchases, starting at $8.99 per month. Lockin Security asks for nothing beyond the download.

Lockin Security ships an update every 5 weeks, Unstack every 11 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Lockin Security | Unstack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Size | 178 MB | 79 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LOCKIN INTERNATIONAL PTE. LTD.](https://appshunter.io/developer/1512075715) | [Chukwuemeka John Okparaeke](https://appshunter.io/developer/1873573027) |

## What reviewers say

### Lockin Security

[App page](https://appshunter.io/ios/app/lockin-security/id6557074484)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unstack

[App page](https://appshunter.io/ios/app/unstack-ai-scanner-and-vault/id6759369565)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnstackMonthly | $8.99 | per month |
| UnstackYearly | $79.99 | per year |


## Frequently asked questions

### Is Lockin Security free?

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

### Is Unstack free?

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

### Do Lockin Security or Unstack have ads?

Neither Lockin Security nor Unstack shows ads.

### Which is updated more often, Lockin Security or Unstack?

Lockin Security ships an update every 5 weeks, and Unstack every 11 days. Most recently, Lockin Security was updated on October 5, 2026 and Unstack on October 7, 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.*