# I vs DOWN噹

The clearest difference is rating: DOWN噹 at 5.0 against I's 2.4. I's advantage is update cadence (monthly vs every 7 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DOWN噹 holds the better App Store score, 5.0 against 2.4. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

I ships an update monthly, DOWN噹 every 7 months. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | I | DOWN噹 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (7 ratings)](https://appshunter.io/ios/app/i-at-lamp/id1547243763/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/down/id1563626875/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free | Free |
| Size | 20 MB | 52 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [秀平 王](https://appshunter.io/developer/1545529555) | [Shenzhen DEPCON Auto Electronic Technology Co.,Ltd.](https://appshunter.io/developer/1563626877) |

## What reviewers say

### I

[App page](https://appshunter.io/ios/app/i-at-lamp/id1547243763)

Control smart lights and play music via Bluetooth. Customize light colors, modes, speed, and brightness to sync with your music. Offers multiple lighting effects like gradient and stroboscopic modes.

**Highlights:** Bluetooth music playback, Customizable light colors, Music-synced lighting, Multiple lighting modes, Adjustable speed and brightness, Multi-module synchronization

**Features:** macOS Compatibility

**In-app purchases:** none


### DOWN噹

[App page](https://appshunter.io/ios/app/down/id1563626875)

Control your vehicle's air suspension system directly from your smartphone. Monitor air spring and tank pressure in real-time. Features a simplified interface for easy operation and supports multiple languages.

**Highlights:** Remote suspension control, Real-time air pressure monitoring, Independent display of four air springs, Air tank pressure display, Simplified user interface, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is I free?

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

### Is DOWN噹 free?

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

### Which has better reviews, I or DOWN噹?

DOWN噹 is rated higher. I averages 2.4 out of 5 from 7 ratings, while DOWN噹 averages 5.0 from 4 ratings.

### Do I or DOWN噹 have ads?

Neither I nor DOWN噹 shows ads.

### Which is updated more often, I or DOWN噹?

I ships an update monthly, and DOWN噹 every 7 months. Most recently, I was updated on October 7, 2026 and DOWN噹 on October 14, 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.*