# MTF Smart Security vs Caliber

The clearest difference is update cadence: Caliber at every 5 days against MTF Smart Security's every 4 weeks. 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.

MTF Smart Security ships an update every 4 weeks, Caliber every 5 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MTF Smart Security | Caliber |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Size | 108 MB | 74 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Enigma Sense LTD](https://appshunter.io/developer/1852486984) | [Gilad Opher](https://appshunter.io/developer/6801741033) |

## What reviewers say

### MTF Smart Security

[App page](https://appshunter.io/ios/app/mtf-smart-security/id6755186769)

**In-app purchases:** none


### Caliber

[App page](https://appshunter.io/ios/app/caliber/id6801741031)

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

**In-app purchases:** none


## Frequently asked questions

### Is MTF Smart Security free?

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

### Is Caliber free?

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

### Do MTF Smart Security or Caliber have ads?

Neither MTF Smart Security nor Caliber shows ads.

### Which is updated more often, MTF Smart Security or Caliber?

MTF Smart Security ships an update every 4 weeks, and Caliber every 5 days. Most recently, MTF Smart Security was updated on October 15, 2026 and Caliber on October 25, 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.*