# Dr. LED vs AOI

The clearest difference is update cadence: AOI at every 10 days against Dr. LED's monthly. AOI also leads on iOS requirement (11.0 vs 13.0). 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.

Dr. LED ships an update monthly, AOI every 10 days. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Dr. LED | AOI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dr-led/id1041997733/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free | — |
| Size | 21 MB | 32 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic Engineering Inc.](https://appshunter.io/developer/1041997732) | [AOI-UW LIMITED](https://appshunter.io/developer/1797477814) |

## What reviewers say

### Dr. LED

[App page](https://appshunter.io/ios/app/dr-led/id1041997733)

This app helps users select and convert marine LED bulbs. It provides guidance for navigation lights (single, bicolor, tricolor) and interior/exterior lighting. Selections can be made based on incandescent bulb images, Ancor numbers, bulb trade numbers, or navigation light types.

**Highlights:** Marine LED bulb selection, Conversion guide, Navigation light options (single, bicolor, tricolor), Interior and exterior light options, Selection by incandescent image, Selection by Ancor/Trade numbers

**Features:** macOS Compatibility

**In-app purchases:** none


### AOI

[App page](https://appshunter.io/ios/app/aoi-uw/id6742219314)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dr. LED free?

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

### Is AOI free?

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

### Do Dr. LED or AOI have ads?

Neither Dr. LED nor AOI shows ads.

### Which is updated more often, Dr. LED or AOI?

Dr. LED ships an update monthly, and AOI every 10 days. Most recently, Dr. LED was updated on September 8, 2026 and AOI on September 19, 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.*