# Mobile Oscilloscope vs Randomness Generator

The clearest difference is price: Randomness Generator at Free against Mobile Oscilloscope's $1.99. Randomness Generator also leads on update cadence (every 2 days vs every 30 months). Mobile Oscilloscope's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Randomness Generator is free to download; Mobile Oscilloscope costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mobile Oscilloscope ships an update every 30 months, Randomness Generator every 2 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Mobile Oscilloscope | Randomness Generator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mobile-oscilloscope/id1363904692/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 30 months | **Every 2 days** |
| Monetization | Paid | — |
| Size | 2 MB | 7 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Owned by Me](https://appshunter.io/developer/1651859785) |

## 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


### Randomness Generator

[App page](https://appshunter.io/ios/app/randomness-generator/id6758778902)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mobile Oscilloscope free?

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

### Is Randomness Generator free?

Randomness Generator is free to download, with no in-app purchases.

### Do Mobile Oscilloscope or Randomness Generator have ads?

Randomness Generator shows ads; Mobile Oscilloscope does not.

### Which is updated more often, Mobile Oscilloscope or Randomness Generator?

Mobile Oscilloscope ships an update every 30 months, and Randomness Generator every 2 days. Most recently, Mobile Oscilloscope was updated on October 7, 2026 and Randomness Generator on October 12, 2026.

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