# Mobile Oscilloscope — Mobile Oscilloscope

> Mobile phone oscilloscope for audio and circuit signal analysis. (iPhone/iPad app by 怀卫 张.)

- Source: https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692 (this page in markdown: same URL + `.md`)
- Developer: [怀卫 张](https://appshunter.io/developer/1252544375)
- Category: Utilities, Education
- Price: $1.99
- Rating: 5.00/5 from 2 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 2 MB
- Languages: American English, French (France), German (Germany), Italian, European Portuguese, Russian, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2018-04-06
- Data updated: 2026-08-19
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692/reviews.md

## What is Mobile Oscilloscope?

This application turns your phone into a powerful handheld oscilloscope for audio signal analysis (professionals can also use for circuit analysis).
The signal parameters can be displayed in detail, including: maximum value, minimum value, average value, effective value and frequency, and the frequency measurement is very accurate.
There are multiple trigger modes. The trigger modes are: automatic mode, normal trigger and single trigger; the trigger edges are: rising edge trigger, falling edge trigger, rising or falling edge trigger, jump trigger and differential trigger; the trigger value can be selected.
With the measurement function, it is freely measured in the horizontal and vertical directions, gesture operation, easy to use.
Waveforms can be freely zoomed with gestures or buttons.
Supports interface color selection.
Has a storage depth of 10 seconds.

This application is normally used for audio signal measurement without any risk.

Circuit measurement special instructions:
Professionals can use this application for circuit measurements and the electrical signal is input via the microphone channel of the headset.
Please pay attention to safety: You must have enough professional knowledge. The high voltage circuit must go through the isolator and attenuator. Conventional low-voltage circuits must also add an attenuator and then enter the phone.
Circuit measurement is risky and the author of this application will not be liable for any loss of personnel or equipment resulting from the correct or incorrect use of this application.

## Key features

- Audio signal analysis
- Circuit analysis for professionals
- Detailed signal parameter display
- Accurate frequency measurement
- Multiple trigger modes
- Gesture-based measurement and zooming
- Customizable interface colors

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692/reviews.md

### 3/5 — Un bon début, à améliorer !

*2023-10-12, version 1.2*

Mis à part les 3 options d'entrées micro proposées, pas d'option pour le signal d'entrée (digitary device).

Il est annoncé analyse des signaux audio sur le Store. Mais rien sur leur provenance. Il aurait été judicieux de le spécifier.

C'est bien dommage car il est impossible d'analayser une fréquence créée à partir d'un générateur BF logiciel.

Il serait judicieux de rajouter cette option, merci.

### 1/5 — Buggy..avoid

*2022-03-20*

App is buggy and crashes after a few seconds. Tried all three audio input options, but did not work

### 1/5 — AUv3

*2021-12-27*

Please add support for use within GarageBand

### 1/5 — Pb de mesure

*2019-08-07, version 1.1*

Affiche toujours 100hz quelques soient les fréquences ...

### 2/5 — Функционал

*2018-10-21*

Почему нет значения вольт?

**Developer response:** Спасибо за совет.  точное измерение напряжения требует калибровки оборудования.  Следующая версия плюс шкала вольт.

## Frequently asked questions about Mobile Oscilloscope

### What is Mobile Oscilloscope used for?

Mobile Oscilloscope turns your phone into a handheld oscilloscope for analyzing audio signals. Professionals can also use it for circuit analysis, inputting electrical signals via the headset microphone channel.

### How accurate is the frequency measurement in Mobile Oscilloscope?

The frequency measurement in Mobile Oscilloscope is described as very accurate, providing detailed signal parameters including frequency.

### What trigger modes are available in Mobile Oscilloscope?

Mobile Oscilloscope offers multiple trigger modes including automatic, normal, and single trigger. It also supports various trigger edges like rising, falling, jump, and differential, with selectable trigger values.

### Can I zoom and measure waveforms with Mobile Oscilloscope?

Yes, waveforms can be freely zoomed using gestures or buttons. The app also features a measurement function for freely measuring in horizontal and vertical directions with gesture operation.

### Is Mobile Oscilloscope safe to use for circuit measurements?

Circuit measurement carries risks. Users must have professional knowledge, and high-voltage circuits require an isolator and attenuator. Conventional low-voltage circuits also need an attenuator before inputting into the phone. The author is not liable for any loss due to incorrect use.

### What is the storage depth of Mobile Oscilloscope?

Mobile Oscilloscope has a storage depth of 10 seconds, allowing for analysis of signal segments up to that duration.

### Does Mobile Oscilloscope have ads?

No, Mobile Oscilloscope does not contain advertisements. It is a paid application without any ads.

### What devices is Mobile Oscilloscope compatible with?

Mobile Oscilloscope is compatible with Mac, iPhone, iPad, and iPod devices.

## Version history (last 4 releases)

### 1.3 — 2025-02-26

Upgrade to adapt to new operating systems and devices.

### 1.2 — 2021-09-23

Add Bluetooth microphone support.
Add volt display unit.

### 1.1 — 2019-04-16

Version 1.1
Fix display issues.
Adapt to more models.

### 1.0 — 2018-03-31

No release notes.

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## More apps by 怀卫 张

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- [Accurate Violin Tuner](https://appshunter.io/ios/app/accurate-violin-tuner/id1261308157)
- [Accurate Viola Tuner](https://appshunter.io/ios/app/accurate-viola-tuner/id1261657228)
- [Accurate Cello Tuner](https://appshunter.io/ios/app/accurate-cello-tuner/id1261668578)

All apps by 怀卫 张: https://appshunter.io/developer/1252544375

## Related topics

[mobile oscilloscope](https://appshunter.io/ios/topics/mobile-oscilloscope) · [keysight oscilloscope mobile](https://appshunter.io/ios/topics/keysight-oscilloscope-mobile)

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*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 2026-08-19.*