EDLM vs Ruko Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EDLM
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>>> Check out the demo videos at onyx3.com/EDLM E-Drum Latency Meter was developed specifically for measuring latency in electronic drums. The app uses an audio adapter to connect to the input and output points of an e-drum system and provides automated and accurate latency measurements. EDLM app sends a trigger pulse to the module while simultaneously recording and waiting for the drum sound to arrive. It then calculates and stores the time difference between the two moments. This cycle is continuously repeated at different intervals as the accumulated data is used to estimate the average latency and jitter amounts. The app requires an external audio adapter or interface.
Ruko Scanner
This utility app allows users to read and edit information from Ruko external Remote ID modules. It supports searching for Remote ID signals, binding UAV identity information to an RID account, and resetting binding details. The app also functions as a monitoring tool to view broadcast information from nearby drones and their locations on a map.
- Read and edit Remote ID module information
- Search for Remote ID signals
- Bind UAV identity to RID account
- Reset module account binding
- Monitor drone broadcast information
- View drone and map locations
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This APP is used for reading and editing Ruko external Remote lD module information 1. It can support to automatically search the Remote lD signal, load device UAV identity information and bind to the RID account. 2. You can use it to reset the Remote lD module account binding information. 3. It can be used as a monitoring tool APP to check the broadcast information of the Remote lD module and the flying drones around it. 4. You can browse the detailed map location and drone location through this APP.
Screenshots
Verdict
The clearest difference is price: Ruko Scanner at Free against EDLM's $19.99. Ruko Scanner also leads on update cadence (fortnightly vs every 26 months) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support 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
Ruko Scanner is free to download; EDLM costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EDLM ships an update every 26 months, Ruko Scanner fortnightly. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.
| Parameter | EDLM | Ruko Scanner |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | — | 3.0 (8 ratings) — better |
| Positive reviews | — | 16.7% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 26 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 52 MB |
| Age rating | 4+ | 17+ |
| Developer | ONYX Apps | Shenzhen Ruike Innovation Technology Co., Ltd |
In-app purchases
EDLM
No in-app purchases
Ruko Scanner
No in-app purchases
