# smartctr vs Z3 AIR

The clearest difference is update cadence: Z3 AIR at every 2 weeks against smartctr's every 2 months. Z3 AIR also leads on iOS requirement (11.0 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.

smartctr ships an update every 2 months, Z3 AIR every 2 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | smartctr | Z3 AIR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (12 ratings)](https://appshunter.io/ios/app/smartctr/id1535913329/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 109 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [爽 余](https://appshunter.io/developer/1534844232) | [Jhenell Meneses](https://appshunter.io/developer/1734074202) |

## What reviewers say

### smartctr

[App page](https://appshunter.io/ios/app/smartctr/id1535913329)

This app provides intelligent remote control for pickup truck roller shutters and carriage LED lights. It enables automatic switching of these features for convenient operation.

**Highlights:** Remote control for roller shutters, Automatic roller shutter switch, Control carriage LED lights, Automatic LED light switch

**Features:** macOS Compatibility

**In-app purchases:** none


### Z3 AIR

[App page](https://appshunter.io/ios/app/z3-air/id6737435928)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is smartctr free?

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

### Is Z3 AIR free?

Z3 AIR is free to download, with no in-app purchases.

### Do smartctr or Z3 AIR have ads?

Neither smartctr nor Z3 AIR shows ads.

### Which is updated more often, smartctr or Z3 AIR?

smartctr ships an update every 2 months, and Z3 AIR every 2 weeks. Most recently, smartctr was updated on October 20, 2026 and Z3 AIR 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.*