Comparison

EDLM vs OWON iMeter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EDLM

Read full description

>>> 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.

About

OWON iMeter

This app enables remote monitoring, analysis, and data logging for smart Bluetooth multimeters. It allows for continuous real-time and offline recording, multi-device control, and abnormal data warnings, enhancing operator safety and simplifying data comparison.

Highlights
  • Remote real-time monitoring
  • Continuous offline recording
  • Multi-device control
  • Wireless safety monitoring
  • Graphic and table data presentation
  • Abnormal data warning system
  • Data backup and sharing
Features
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The first smart Bluetooth multimeter When connect the mobile device with OWON smart Bluetooth multimeter, it can realize remote monitor, analysis, warning and sharing. Furthermore, it can be used as data logger, process tester, thermometer. Function: *Continuous real-time recording read the real-time measurement data of multimeter by low power consumption Bluetooth protocol. After recoding, drawing, analyzing the data, specific data could be saved and loaded for checking convenience. *Continuous offline recording you can use iOS device APP to send a command, the multimeter will start recording the measurements. After receiving the command, the connection will be disconnected automatically. The multimeter will record the measuring data in its own memory. After completion of the record, use iOS APP to reconnect the multimeter, and then you can read the measuring data into the iOS device as a CSV file. You can use this function to record for a long time without staff on duty, while reducing Bluetooth consumption to conserve the battery power of the multimeter. *Multi-point control device app could be connected with multiple devices to monitor them. In "DeviceList" page, the measurements of each device could be observed at the same time. It's convenient for users to view the change of multiple test points at unifying perspective. *Remote wireless communication, guarantee the safety of operator Remote continuously record and monitor could capture the current, voltage, resistance, capacitance, temperature of every test points in high voltage, high temperature, narrow environment and other extreme situation. Data can be captured from remote place, which guarantee the safety of user. *Graphic and table presentation, simplify the comparison and analysis It's abstract when there is only data. Application can draw the data trending of multiple devices in real-time. Could be zoomed out, zoomed in and moved by gestures. Users can match the data to specific curve drawings and analyze the path trending of the test points. *Abnormal data warning Set the warning condition in advance. When data are captured continuously, warning system would remind the user when qualified data show up. *Data back up and share Interpret: Application supports data save and export to be backed up. Otherwise, it could be share in multiple ways so that co-workers could help you to analyze the issue and solve the problem.

Screenshots

EDLM1 screens
OWON iMeter4 screens

Verdict

The call

The clearest difference is price: OWON iMeter at Free against EDLM's $19.99. OWON iMeter also leads on update cadence (every 3 months vs every 26 months) and device support (3 vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

OWON iMeter is free to download; EDLM costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EDLM ships an update every 26 months, OWON iMeter every 3 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
EDLM versus OWON iMeter: the parameters behind the verdict, then further details
ParameterEDLMOWON iMeter
Price$19.99Free — better
Rating—4.0 (2 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 26 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size4 MB56 MB
Age rating4+4+
DeveloperONYX AppsFujian Lilliput Optoelectronics Technology Co., Ltd.

In-app purchases

None

EDLM

No in-app purchases

None

OWON iMeter

No in-app purchases

Questions

Is EDLM free?
EDLM costs $19.99, with no in-app purchases.
Is OWON iMeter free?
OWON iMeter is free to download, with no in-app purchases.
Do EDLM or OWON iMeter have ads?
Neither EDLM nor OWON iMeter shows ads.
Which is updated more often, EDLM or OWON iMeter?
EDLM ships an update every 26 months, and OWON iMeter every 3 months. Most recently, EDLM was updated on October 5, 2026 and OWON iMeter on October 6, 2026.

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