# Oscilloscope — user reviews > 53 indexed App Store user reviews of Oscilloscope by ONYX Apps, rated 4.10/5 from 19 ratings. - Source: https://appshunter.io/ios/app/oscilloscope/id388636804/reviews - App overview in markdown: https://appshunter.io/ios/app/oscilloscope/id388636804.md - Rating breakdown: 5★ 10 · 4★ 5 · 3★ 2 · 2★ 0 · 1★ 2 ## Newest reviews (14 of 53) ### 4/5 — One missing feature *2026-02-20* It would be AWESOME if there was an audio player for loading mp3 files and viewing the stereo signals in XY mode! ### 3/5 — Screen Hog 🖥🐽 *2022-12-20* Needs split view mode to analyze internal apps without having to switch screens ### 4/5 — Oscilloscope App *2021-08-12* I have been searching for some time for an App that would enable to view circuit waveforms because in my location and situation purchasing a DSO is a very expensive option. This App has become an essential part of developing a circuit design. The only limitation is the frequency range but for my design work that isn’t an issue. An improvement that I would appreciate is the ability to expand the timebase to less than 500mS - say to 50ms. This would help to examine waveforms in greater detail. Building my own interface was not an issue, but for beginners it might prove to be a challenge. I am very happy to recommend this App to other Electronic Engineers. ### 4/5 — Super Sensitive-the way it should be *2020-01-06* very useable audio scope. One thing they definitely need to do is add a snapshot or screen capture utility. Right now, all you can do is look at the signal. Also some kind of export to raw feature would be usable to tech’s. Thanks ### 3/5 — Application Not accessing mic *2019-07-27* I have Ipad pro 2018 ios 12.4 and the application is not accessing the built in ipad microphone which kinda bums me out because i bought it just to play around with the XY scope... any way you guys can fix this? ...Thank you ### 4/5 — Almost perfect for tuning the “beat” of a pendulum clock *2018-11-29* I am using this app to tune the “beat” of pendulum clocks. When the time from tick to tock is the same as time from tock to tick then the clock is in beat and will run reliably assuming no other problems. Why is this app “almost perfect” ? Because the maximum buffer size is 2 seconds which is not long enough for grandfather clocks. All else on app is great. To improve the app: 1) increase maximum buffer size to 10 seconds. Perhaps larger for some other uses. The iPad has lots of memory so this should be an easy improvement. 2) add feature to allow saving screen as an image. Many users would like this feature. Steven **Developer response:** Please check out the ClockMaster app - specifically designed for pendulum clocks ;) clockmasterapp.com ### 4/5 — CRAZY awesome, but a few requests *2018-11-25* Really love this app. I use it to visualize musical waveforms for projection with video synthesis and analog glitch mixing. Given that my use for this is 100% for visual enjoyment and has no technical purpose to me, I would love more options over controlling the appearance of the waveforms. Especially contrast, color, removing the grid, line thickness, and other things. This could be a really fantastic visualization app if it wanted to be. I’m currently using mine with a Roland Go Mixer for direct digital audio and an Apple TV to mix it into my video rig. Works fantastic! Turns my iPad into a really freaking slick AV toy. ### 4/5 — Great works with ES-8 D.C. Coupled interface *2017-03-07* This is the best app I've found so far that works with expert sleepers es-8 audio interface (es8 has D.C. Inputs and outputs ) the buffer settings could be larger for better LFO viewing but this is by far the best I've seen. Controls could be a bit better and there is no analog persistence mode to make it look pretty. But over all it's really great for the money. Hope this continues to get updates! ### 5/5 — Electrical Engineer *2015-02-11* This is a great App for low frequency work! I am porting a special low pass filter stereo music signal using the recommended input devices for an XY music display, and using Airplay to send to my TV. All the App features work great and this is a really fun App for the oscilloscope aficionado's out there like me. ### 3/5 — Chance vertan - aber keine Alternative... *2015-01-18* Die App hat jede Menge Potential - welches leider ungenutzt bleibt. Man schaue sich die Screenshots oder das Video genau an, denn sie zeigen genau die Schwachpunkte der App: - Keine Skala an den Achsen (trotz Kalibrierungsoption) - Keine Cursor im laufenden Betrieb - Cursormessung nur im Stop Modus - Keinerlei Messergebnisse in Echtzeit vom Eingangssignal - Zeitauswahl nur per Pinch-Zoom horizontal, was gerne die Signale vertikal mit verschiebt - Auf dem iPad viel zu kleines Generatorpanel - unbedienbar - Funktionsgenerator arbeitet unverständlich. Um das immer störende zweite Signal abzuschalten muss man dort 0 Hz einstellen. - Keine Auswahl der Samplefrequenz (fest 48 kHz). Mit externem USB Audiointerface wären sonst bis zu 192 kHz mögllich, und damit auch deutlich aussagekräftigere Messungen der Signalform im hörbaren Bereich - Kein Speichern/Laden von Setups/Presets Für einen Preis von 8 Euro aufwärts bleibt da leider nur ein Urteil - nicht kaufen. Update ein Jahr später: Trotz all der fehlenden Merkmale ist Oszilloskop immer noch das beste Oszi im gesamten App-Store. Unfassbar.. Update zwei Jahe später: immer noch unfassbar.... ### 4/5 — Very nice *2014-05-16, version 2.1* I you added Audiobus support it would be perfect. ### 5/5 — useful piece of gear *2013-09-25* Use it a lot in my work as an audio tech, not wishing to sound ungrateful, but a dB scale would be useful No one that I know has ever designed a dB Voltmeter, why I don't know, there are plenty of dB meters for environment measurements SPL etc. Kind Regards Tony Tony Arnold (Director) Helios Electronics Ltd ### 4/5 — Works well but missing one feature *2013-08-29, version 2.1* Reliable app with all the basic features. If it had a way to capture the data and email it as a CSV file with XY then it would be incredible. ### 4/5 — Very nice app! *2013-08-06, version 2.1* I like the flexibility of changing the time base and voltage scale so easily. Could use a bit more info on using the variable frequency signal generator. Very good job on everything else! ## Most critical reviews (10 lowest-rated) ### 1/5 — Not auv3 *2025-11-08* Don’t make the same mistake I did, this is not an auv3 ### 1/5 — ET *2025-06-15* Love your work! ### 1/5 — Annoying interface *2015-12-31* This app could do much better with on screen controls for timebase and channel gain settings. The generator levels seem unadjustable. Extremely annoying is the scale changes do not adhere to standard scope 1,2,5 sequence so you end up with silly fullscale and time settings. This app misses thr mark by a mile, i am chucking this. ### 1/5 — No scope *2011-11-08* I paid 20$ but the appplication stops crashing. ### 1/5 — Does not work *2011-02-21, version 1.5* Does not work on first gen iPhone, crashes on launch. ### 1/5 — Nette Idee aber unbrauchbar *2011-02-01* Habe die App. Auf einem iPhone 4. Das Problem ist, dass das iPhone nur Wechselspannungen erfassen kann. Dies wird aber nirgends erwähnt. Urrefürende Beschreibung und Namensgebung!!! ### 2/5 — 22Khz Limit, too bad. *2015-01-05, version 2.6* The 22KHz limit is a huge negative. All my waveforms end up looking like square waves. Increase the limit and the functionality would really improve. (I'm mad at myself since I didn't notice the limit before purchasing. Don't be like me, read the description carefully) ### 2/5 — Only works under 20kHz *2014-08-30* I got this app to work with ultrasonic transducers but I found out once I started working with it that the shortest time step you can have is 0.5 ms. So at 20 kHz you have 10 peaks per square and is pretty useless beyond that point. I'm working with 450 kHz and the display is just a yellow blur. I'd give this app five stars if it worked for the frequencies I needed (which most oscilloscopes would) but since it was a waste of money for my needs I give it two stars. ### 2/5 — Oscilloscope *2013-09-23* Bis auf das eigentlich Wichtigste, die Calibrierung funktioniert alles tadellos. Leider behauptet die App beim Kalibrieren immer der eingegebene Pegel sei zu niedrig selbst wenn ich es mit 10000 mv versuche :-) ### 2/5 — Difficult to Use *2010-12-15* 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. ## Most praised reviews (10 highest-rated) ### 5/5 — Pls one of the devs respond! *2021-12-16* Hi, I love this app, but I was thinking there would be audio for the input mode )): Is there a way to turn on audio?? Or is it just waves. Please help! I really bought this for the purpose of trying to learn how to make music videos with it, and it’s well.. I cant make music videos without music. So pls help! Thanks! ### 5/5 — Please update for recent iOS *2020-12-14* App works great, and developers respond to reviews. Thank you. **Developer response:** Hi, Sorry for the inconvenience. This is a known issue with the latest iOS update. Simply delete and reinstall the app and it should work. With any issues, please contact us directly at apps@onyx3.com ### 5/5 — Very handy app *2019-10-14* I wish there was a way to turn off AUTO mode and revert to the previous settings if you have tapped AUTO by mistake ### 5/5 — Love it! *2018-11-02* Best on the app store for sure! So thankful this is still supported! iOS 12 update! :) ### 5/5 — Great for monitoring Eurorack levels! *2018-01-22* This is a great app for the money! I read the info and took a chance on how well it could read DC values in order to monitor control voltages, and it does great! I paired my Eurorack rig with an ES-8 interface and can directly monitor audio values and control values. Takes a second to scale onto the screen with proper amplitude to get the idea, but it's not inaccurate and not hard to calibrate. Saved me $400 on a Data module (which is great and has much more functionality), but for monitoring without a computer, this app is the WINNER! ### 5/5 — Oscilloscope *2016-11-28* Very good! ### 5/5 — Very nice Oscilloscope... *2016-04-06* ...without requiring external hardware - any audio interface will do. Easy to use. ### 5/5 — My favorite app *2016-01-19* This to me is exactly the ideal product of an app development community and app marketplace. I love this thing. This makes any iOS device an double as an incredibly useful tool in a new, unique way. That is to say it's also the best app among the category of all oscilloscope apps I have tried. The UI is super simple, to the point of actually being beautiful. The pinching is a little hard to get used to. I would slip at first and adjust the offset when I was trying to adjust the voltage. Now I still slip a little when adjusting the time base, but it's easy enough to correct. And Auto makes it easy to not even worry about any of that. Thank you. Well worth the price. ### 5/5 — Oscilloscope *2015-06-03* I use this great app with iPad mini and a home made input to the microphone socket, using a standard probe, a 1M pot and back to back diodes to protect the iPad. Really useful, I love the single trigger mode. ### 5/5 — Works Great! Used it all weekend instead of my bench scope. *2015-04-27* Nice job with this app! I would like to see a few more features but honestly it does way more than I expected! I would like to see integration with Audiobus or Inter-App Audio. The cursor icons could be a bit bigger on the iPhone. The large beefy border of my Pelican case make it more difficult to grab the cursor handles. Nice work! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*