# Smartin lock vs KBH SUPI

The clearest difference is update cadence: Smartin lock at monthly against KBH SUPI's every 15 months. KBH SUPI's advantage is iOS requirement (13.0 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.

Smartin lock ships an update monthly, KBH SUPI every 15 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Smartin lock | KBH SUPI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 15 months |
| Size | 49 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MARINOS AIMONIOTIS](https://appshunter.io/developer/1495174045) | [App Studio 35, Inc.](https://appshunter.io/developer/1357403115) |

## What reviewers say

### Smartin lock

[App page](https://appshunter.io/ios/app/smartin-lock/id1495174046)

**Features:** macOS Compatibility

**In-app purchases:** none


### KBH SUPI

[App page](https://appshunter.io/ios/app/kbh-supi/id6458045120)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smartin lock free?

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

### Is KBH SUPI free?

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

### Do Smartin lock or KBH SUPI have ads?

Neither Smartin lock nor KBH SUPI shows ads.

### Which is updated more often, Smartin lock or KBH SUPI?

Smartin lock ships an update monthly, and KBH SUPI every 15 months. Most recently, Smartin lock was updated on November 3, 2026 and KBH SUPI on November 3, 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.*