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  • #: 208379
  • Price: $14.99 In Apple Store
  • Category: Utilities
  • Updated: 2015-08-12
  • Current Version: 2.6.1
  • 2.6.1
  • Size: 5.90 MB
  • Language: English
  • Seller: ONYX 3
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1.3 or later
  • © 2010 ONYX Apps
  •  Add to Favorite apps



"I use this for analog, and audio measurements. Attach an Apple USB adapter and a $40 stereo A-D converter available online, and my iPad is like a $300 O'Scope." -thymeout-

Oscilloscope app is great for analyzing audio range signals, or learning oscilloscope measurement basics. The interface includes many standard oscilloscope controls, such as: triggering, time and voltage per division, signal measurement cursors, and more.

The app incorporates a signal (function) generator capable of generating sine, square, triangle, and sawtooth waveforms of up to 22 KHz. Calibration to an external reference signal is supported, guaranteeing the accuracy of measurements.

Input can be acquired via the built-in microphone or an external mic/probe connected to the headset connector. For best results, use an external audio interface connected to your device dock. This allows for standard audio equipment to be connected, as well as for dual channel input. Oscilloscope probes also be connected (using a BNC connector). When feeding external signals via probes, you should take care not to exceed 1V AC voltage. Currently iDevices support only AC input.

For up-to-date information on feeding signals and currently supported audio interfaces, please visit http://oa.onyx3.com

Feature Highlights:

● Real-time waveform display (60 FPS)

● Triggering modes: Normal, Auto, Single

● Set trigger level and pre-trigger time

● Dual channel signal generator

● Reference signal calibration

● Pause function to get a screen capture

● Export traces as text file for further analysis

● Measure signal data using cursors

● Use "finger pinch" on screen to set voltage and time base

● Double tap screen to enter Black Panel mode

● Three color themes to choose from

● XY mode for viewing Lissajous figures

● Frequency range 20Hz-22KHz

● Native iPhone 6 graphics

What's New in Version 2.6.1

Thank you for helping us improve Oscilloscope app! Please rate it on the App Store now, so we can make it even better!

● 64-bit
● Minor fixes

iPad Screenshots

Oscilloscope iPad Screenshot 1
Oscilloscope iPad Screenshot 2
Oscilloscope iPad Screenshot 3
Oscilloscope iPad Screenshot 4
Oscilloscope iPad Screenshot 5

Video Reviews

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Customer reviews

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Rated 2/5 based on 3 customer reviews.


5/5 stars

Love it!

Best on the app store for sure!

2/5 stars

Difficult to Use

Oscilloscope is exactly what it says it is, an oscilloscope for the iPhone. Just like a real oscilloscope, however, it's a little difficult to use.
For instance, in trigger mode, you have to drag directly on the trigger to move the level, instead of on the trigger line. If you drag elsewhere, your'e kicked out of that mode. That was really confusing and took me more than a couple tries to figure out.

The "F-GENERATOR", as it's called in the app, but "Signal Generator" here in the website, is pretty kludgy to use as well. It's simple enough to get some signal being played out, but adjusting the frequency is difficult with the small buttons they provide. I don't see any reason to use non-standard UI here. It is quite nice, however, that you can have two-channel output for the signal generator.

Also, the maximum time/division is 10 milliseconds, showing no more than 100 milliseconds at a time. That's tiny! There's plenty of other oscilloscopes on the app store that show much more. It feels really limiting.

It's clear that the authors tried to emulate the style of a stand-alone oscilloscope, but the controls just don't feel right on the iPhone. The difficult UI, combined with the scale limitations, don't make this a good value at $15. It does have a fast display, but that doesn't matter much if I can't use it.

0/5 stars

Does not work

Does not work on first gen iPhone, crashes on launch.


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The information may be outdated (2017-03-08 18:02:40). For actual information go to iTunes

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