D4503 vs EARL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D4503
Control Microframe's WiFi-enabled LED Stop Lights with this user-friendly app. Easily set up and manage one or multiple lights for various applications like business lobbies, churches, or classrooms. It facilitates communication over your local WiFi network.
- WiFi Stop Light control
- Simple setup
- Manage multiple lights
- Local WiFi network communication
- Business lobby use
- Classroom time management
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The WiFi Stop Light app works directly with Microframe’s WiFi-controlled, LED Stop Light. The app was designed specifically to be simple and easy to use. With just a few simple steps, your WiFi stop light will be set up and ready to use. Using the app, you can control one or multiple Microframe WiFi Stop Lights. Communication between your device and the stop lights is accomplished using your organization's local WiFi network. This app provides all the necessary options to meet your needs. Possible Uses: Business Lobbies Churches Classrooms Entertainment/Novelty Speaker time limits, such as ToastMasters
EARL
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Daily, EARL makes it easy to use your reward light. This application lets you configure your traffic light and collect recorded traffic statistics. EARL is associated securely with the traffic light (password-protected connection). It offers the following functionalities : - Light configuration according to speed zone; - Management of traffic light activation; - Statistics recording and processing; - Product status diagnostics.
Screenshots
Verdict
The clearest difference is iOS requirement: D4503 at 9.0 against EARL's 13.0. 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.
D4503 ships an update every 7 months, EARL every 6 months. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.
| Parameter | D4503 | EARL |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 7 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 69 MB | 39 MB |
| Age rating | 4+ | 17+ |
| Developer | Microframe Corp | ElanCité |
In-app purchases
D4503
No in-app purchases
EARL
No in-app purchases
