# Dr. LED vs Scheduler

The clearest difference is update cadence: Scheduler at every 2 days against Dr. LED's monthly. 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, Scheduler every 2 days. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Dr. LED | Scheduler |
| --- | --- | --- |
| 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 2 days** |
| Monetization | Free | — |
| Size | 21 MB | 1 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic Engineering Inc.](https://appshunter.io/developer/1041997732) | [Boyang Yue](https://appshunter.io/developer/1546712779) |

## 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


### Scheduler

[App page](https://appshunter.io/ios/app/scheduler-ics-feeds/id1548462555)

**In-app purchases:** none


## Frequently asked questions

### Is Dr. LED free?

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

### Is Scheduler free?

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

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

Neither Dr. LED nor Scheduler shows ads.

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

Dr. LED ships an update monthly, and Scheduler every 2 days. Most recently, Dr. LED was updated on October 10, 2026 and Scheduler on October 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.*