# Waves vs Stochastic Signal Processing

Waves and Stochastic Signal Processing both sit at 4.8 stars, but that hides the real split: 67% of Stochastic Signal Processing's written reviews are positive against 50% of Waves's. Waves's advantage is iOS requirement (11.4 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for Waves against 4.7 for Stochastic Signal Processing. Both are backed by a comparable volume of ratings — 16 and 6 respectively. Written reviews are what separate them: 50% of Waves's written reviews are positive against 67% of Stochastic Signal Processing's.

Waves ships an update every 2 months, Stochastic Signal Processing every 5 weeks. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Waves | Stochastic Signal Processing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/waves-partial-diff-eq/id1447533890/reviews)** | [4.7 (6 ratings)](https://appshunter.io/ios/app/stochastic-signal-processing/id1450268179/reviews) |
| Number of ratings | **16** | 6 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 30 MB | 73 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim Lucas](https://appshunter.io/developer/1136916670) | [Ian Young](https://appshunter.io/developer/1450268178) |

## What reviewers say

### Waves

[App page](https://appshunter.io/ios/app/waves-partial-diff-eq/id1447533890)

Explore graphical solutions to partial differential equations with interactive activities. Visualize Fourier series and solutions to heat and wave equations, with options to customize conditions and save your work.

**Highlights:** Interactive PDE exploration, Fourier series plotting, Heat equation solutions, Wave equation solutions, Customizable boundary/initial conditions, Save and analyze work

**Features:** macOS Compatibility

**In-app purchases:** none


### Stochastic Signal Processing

[App page](https://appshunter.io/ios/app/stochastic-signal-processing/id1450268179)

Explore the processing of random signals like speech, music, and climate data. This interactive textbook offers dynamic information, films, animations, and 59 real-time laboratory experiments using your device's camera and microphone. It's designed for those with prior signal processing and probability theory knowledge.

**Highlights:** Interactive textbook format, Dynamic information display, Films and animations, 59 laboratory experiments, Real-time signal processing, Homework problems

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Waves free?

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

### Is Stochastic Signal Processing free?

Stochastic Signal Processing is free to download, with no in-app purchases.

### Which has better reviews, Waves or Stochastic Signal Processing?

Waves is rated higher. Waves averages 4.8 out of 5 from 16 ratings, while Stochastic Signal Processing averages 4.7 from 6 ratings.

### Do Waves or Stochastic Signal Processing have ads?

Neither Waves nor Stochastic Signal Processing shows ads.

### Which is updated more often, Waves or Stochastic Signal Processing?

Waves ships an update every 2 months, and Stochastic Signal Processing every 5 weeks. Most recently, Waves was updated on June 1, 2026 and Stochastic Signal Processing on September 25, 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.*