# Stochastic Signal Processing vs LiveRSI

The clearest difference is in-app purchases: Stochastic Signal Processing at none against LiveRSI's 2. LiveRSI's advantage is update cadence (weekly vs every 5 weeks) and iOS requirement (12.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. LiveRSI sells 2 in-app purchases, starting at $19.99 per month. Stochastic Signal Processing asks for nothing beyond the download.

Stochastic Signal Processing ships an update every 5 weeks, LiveRSI weekly. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Stochastic Signal Processing | LiveRSI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/stochastic-signal-processing/id1450268179/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 73 MB | 20 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ian Young](https://appshunter.io/developer/1450268178) | [CMH GROUP LTD EOOD](https://appshunter.io/developer/1705210274) |

## What reviewers say

### 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


### LiveRSI

[App page](https://appshunter.io/ios/app/liversi/id6463894605)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly offer | $19.99 | per month |
| Annual offer | $239.99 | per year |


## Frequently asked questions

### Is Stochastic Signal Processing free?

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

### Is LiveRSI free?

LiveRSI is free to download, with in-app purchases available.

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

Neither Stochastic Signal Processing nor LiveRSI shows ads.

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

Stochastic Signal Processing ships an update every 5 weeks, and LiveRSI weekly. Most recently, Stochastic Signal Processing was updated on September 25, 2026 and LiveRSI on September 13, 2026.

---

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