# Spike Recorder vs Stochastic Signal Processing

The clearest difference is rating: Stochastic Signal Processing at 4.7 against Spike Recorder's 3.4. Stochastic Signal Processing also leads on update cadence (every 5 weeks vs every 4 months). Spike Recorder's advantage is iOS requirement (9.2 vs 15.0). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Stochastic Signal Processing holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 17 and 6 respectively. Written reviews point the same way: 62% of Spike Recorder's written reviews are positive against 67% of Stochastic Signal Processing's.

Spike Recorder ships an update every 4 months, Stochastic Signal Processing every 5 weeks. The most recent releases landed on July 29, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Spike Recorder | Stochastic Signal Processing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (17 ratings)](https://appshunter.io/ios/app/spike-recorder/id367151200/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/stochastic-signal-processing/id1450268179/reviews)** |
| Number of ratings | **17** | 6 |
| Positive reviews | 61.5% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 73 MB |
| Requires iOS | **9.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Backyard Brains](https://appshunter.io/developer/367151203) | [Ian Young](https://appshunter.io/developer/1450268178) |

## What reviewers say

### Spike Recorder

[App page](https://appshunter.io/ios/app/spike-recorder/id367151200)

Explore neuroscience with this app, allowing you to view, hear, record, and analyze neural signals from neurons and muscles. It provides tools for students of all ages to conduct hands-on electrophysiology experiments and understand brain communication.

**Highlights:** View neural signals, Hear neural signals, Record neural data, Analyze neural spike trains, Measure reaction times, Calculate neuroscience statistics

**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 Spike Recorder free?

Spike Recorder 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, Spike Recorder or Stochastic Signal Processing?

Stochastic Signal Processing is rated higher. Spike Recorder averages 3.4 out of 5 from 17 ratings, while Stochastic Signal Processing averages 4.7 from 6 ratings.

### Do Spike Recorder or Stochastic Signal Processing have ads?

Neither Spike Recorder nor Stochastic Signal Processing shows ads.

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

Spike Recorder ships an update every 4 months, and Stochastic Signal Processing every 5 weeks. Most recently, Spike Recorder was updated on July 29, 2026 and Stochastic Signal Processing on September 25, 2026.

---

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