# Mobile Oscilloscope vs Operational Amplifiers Pro

The clearest difference is update cadence: Operational Amplifiers Pro at every 2 months against Mobile Oscilloscope's every 30 months. Operational Amplifiers Pro also leads on chart position (#198 vs unranked). Mobile Oscilloscope's advantage is price ($1.99 vs $4.99) and iOS requirement (15.6 vs 17.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Mobile Oscilloscope costs $1.99 and Operational Amplifiers Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Mobile Oscilloscope against 5.0 for Operational Amplifiers Pro. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Mobile Oscilloscope ships an update every 30 months, Operational Amplifiers Pro every 2 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Mobile Oscilloscope | Operational Amplifiers Pro |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/operational-amplifiers-pro/id6467253953/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#198** |
| Size | 2 MB | 14 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Mobile Oscilloscope

[App page](https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692)

Transform your phone into a handheld oscilloscope for detailed audio signal analysis. Professionals can also use it for circuit measurements. Features include precise frequency measurement, multiple trigger modes, and gesture-based zooming.

**Highlights:** 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

**In-app purchases:** none


### Operational Amplifiers Pro

[App page](https://appshunter.io/ios/app/operational-amplifiers-pro/id6467253953)

**Currently charting:** #198 Top Paid · Utilities (US App Store)

This app provides interactive calculators and reference information for designing and analyzing op-amp circuits. It offers step-by-step explanations and technical data on popular op-amp series, aiding students and engineers in circuit development and prototyping.

**Highlights:** Interactive op-amp circuit calculators, Step-by-step explanations and formulas, Reference data on op-amps and comparators, Support for 14 languages, Light and dark mode, Advanced calculators and circuit guides (Pro), Full-text search (Pro)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mobile Oscilloscope free?

Mobile Oscilloscope costs $1.99, with no in-app purchases.

### Is Operational Amplifiers Pro free?

Operational Amplifiers Pro costs $4.99, with no in-app purchases.

### Which has better reviews, Mobile Oscilloscope or Operational Amplifiers Pro?

Mobile Oscilloscope and Operational Amplifiers Pro are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Mobile Oscilloscope or Operational Amplifiers Pro have ads?

Neither Mobile Oscilloscope nor Operational Amplifiers Pro shows ads.

### Which is updated more often, Mobile Oscilloscope or Operational Amplifiers Pro?

Mobile Oscilloscope ships an update every 30 months, and Operational Amplifiers Pro every 2 months. Most recently, Mobile Oscilloscope was updated on October 7, 2026 and Operational Amplifiers Pro on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*