# Klacci Smartlink vs O2Lock

The clearest difference is update cadence: O2Lock at every 3 weeks against Klacci Smartlink's every 2 months. O2Lock also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Klacci Smartlink ships an update every 2 months, O2Lock every 3 weeks. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Klacci Smartlink | O2Lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 104 MB | 30 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [I-TEK METAL MANUFACTURING CO., LTD.](https://appshunter.io/developer/1253734680) | [One2Touch AS](https://appshunter.io/developer/1678046395) |

## What reviewers say

### Klacci Smartlink

[App page](https://appshunter.io/ios/app/klacci-smartlink/id1266523456)

**Features:** macOS Compatibility

**In-app purchases:** none


### O2Lock

[App page](https://appshunter.io/ios/app/o2lock/id6478984927)

**In-app purchases:** none


## Frequently asked questions

### Is Klacci Smartlink free?

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

### Is O2Lock free?

O2Lock is free to download, with no in-app purchases.

### Do Klacci Smartlink or O2Lock have ads?

Neither Klacci Smartlink nor O2Lock shows ads.

### Which is updated more often, Klacci Smartlink or O2Lock?

Klacci Smartlink ships an update every 2 months, and O2Lock every 3 weeks. Most recently, Klacci Smartlink was updated on September 18, 2026 and O2Lock on September 16, 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.*