Dr. LED vs 777Buddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dr. LED
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.
- 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
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Marine LED bulb selection / conversion guide for Dr. LED bulbs. LED bulbs for single/bicolor/tricolor navigation lights and for interior and exterior lights. Selections from 1) Incandescent Bulb Images, 2) Ancor #, 3) Bulb Trade #, or 4) Navigation Lights.
777Buddy
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This is a combination of several small apps I have written over the years to help operate the B777 aircraft. The values used are specific to a particular fleet of 96 aircraft that resulted from a big merger in 2012, think DEN/IAH. It works on the iPad, but looks better on the iPhone.
Screenshots
Verdict
The clearest difference is iOS requirement: Dr. LED at 13.0 against 777Buddy's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dr. LED ships an update monthly, 777Buddy every 6 weeks. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.
| Parameter | Dr. LED | 777Buddy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Dynamic Engineering Inc. | Robert Steeneck |
In-app purchases
Dr. LED
No in-app purchases
777Buddy
No in-app purchases
