# Unit Converter ( Calculator ) vs dormakaba Smart Lock

The clearest difference is ads: dormakaba Smart Lock at none against Unit Converter ( Calculator )'s shown. dormakaba Smart Lock also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.0). Unit Converter ( Calculator )'s advantage is review sentiment (35% vs 7%). On price, update cadence, 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.

Unit Converter ( Calculator ) ships an update monthly, dormakaba Smart Lock every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Unit Converter ( Calculator ) | dormakaba Smart Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (130 ratings)](https://appshunter.io/ios/app/unit-converter-calculator/id904830056/reviews)** | — |
| Number of ratings | **130** | — |
| Positive reviews | **34.6% of reviews** | 6.8% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 6 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [dormakaba (China) Technologies Ltd.](https://appshunter.io/developer/598880562) |

## What reviewers say

### Unit Converter ( Calculator )

[App page](https://appshunter.io/ios/app/unit-converter-calculator/id904830056)

Easily convert between various units for length, weight, volume, temperature, and more. This tool offers a straightforward interface for quick and accurate conversions across multiple categories.

**Highlights:** Length conversion, Weight conversion, Width conversion, Volume conversion, Temperature conversion, Pressure conversion, Velocity conversion

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### dormakaba Smart Lock

[App page](https://appshunter.io/ios/app/dormakaba-smart-lock/id1280878248)

Control your smart lock remotely with your phone. Unlock doors with a click or shake, view activity logs, and manage user access. Generate temporary visitor PINs for convenient access.

**Highlights:** Unlock with click or shake, Activity timeline history, Lock status and user management, Generate visitor PINs, Remote access control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter ( Calculator ) free?

Unit Converter ( Calculator ) is free to download, with no in-app purchases.

### Is dormakaba Smart Lock free?

dormakaba Smart Lock is free to download, with no in-app purchases.

### Do Unit Converter ( Calculator ) or dormakaba Smart Lock have ads?

Unit Converter ( Calculator ) shows ads; dormakaba Smart Lock does not.

### Which is updated more often, Unit Converter ( Calculator ) or dormakaba Smart Lock?

Unit Converter ( Calculator ) ships an update monthly, and dormakaba Smart Lock every 2 months. Most recently, Unit Converter ( Calculator ) was updated on November 6, 2026 and dormakaba Smart Lock on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*