# N9 vs D230 Mobile

The clearest difference is update cadence: N9 at every 3 weeks against D230 Mobile's every 8 months. N9 also leads on iOS requirement (8.0 vs 12). 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.

N9 ships an update every 3 weeks, D230 Mobile every 8 months. The most recent releases landed on October 16, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | N9 | D230 Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/n9/id1337449449/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free | — |
| Size | 83 MB | 16 MB |
| Requires iOS | **8.0** | 12 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [传林 方](https://appshunter.io/developer/699727053) | [Shuttle Inc.](https://appshunter.io/developer/543929836) |

## What reviewers say

### N9

[App page](https://appshunter.io/ios/app/n9/id1337449449)

This utility app alerts you to vehicle presence using infrared detectors. Customize alarm volume and choose from 16 distinct sounds. It supports up to 12 infrared sensors across six zones.

**Highlights:** Infrared vehicle detection, Adjustable alarm volume, 16 alarm sound options, Supports 12 infrared sensors, Six detection zones

**Features:** macOS Compatibility

**In-app purchases:** none


### D230 Mobile

[App page](https://appshunter.io/ios/app/d230-mobile/id1479007133)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is N9 free?

N9 is free to download, with no in-app purchases.

### Is D230 Mobile free?

D230 Mobile is free to download, with no in-app purchases.

### Do N9 or D230 Mobile have ads?

Neither N9 nor D230 Mobile shows ads.

### Which is updated more often, N9 or D230 Mobile?

N9 ships an update every 3 weeks, and D230 Mobile every 8 months. Most recently, N9 was updated on October 16, 2026 and D230 Mobile on September 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.*