Stochastic Signal Processing vs Kaemika
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stochastic Signal Processing
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.
- Interactive textbook format
- Dynamic information display
- Films and animations
- 59 laboratory experiments
- Real-time signal processing
- Homework problems
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Speech, music, seismic vibrations, oil prices, and climate measurements are all examples of stochastic (random) signals. In this textbook—intended for individuals with prior training in introductory signal processing and introductory probability theory—we develop techniques to process such signals to extract useful information. We present case studies ranging from music to photographic images to oil prices to climate data to the motion of individual biomolecules. This textbook, as an interactive textbook ("iBook"), makes use of your device's ability to display dynamic information through films and animations and to hear the results of the techniques applied to music. At the end of every chapter there are homework problems ranging from easy to "olympic". We make use of your device's interactive capabilities to offer 59 laboratory experiments in signal processing. The experiments use the camera, the microphone, the speakers, and the graphical user interface. These experiments are not simulations; they are examples of real digital processing of signals in your device. In this time of at-home and online learning, this is the way to learn signal processing through study and experimentation.
Kaemika
Explore chemical reactions through simulation and programming. Design complex reaction networks, model their kinetics, and automate lab protocols on a digital microfluidics platform.
- Chemical programming support
- Generate reaction networks
- Simulate reaction kinetics
- Program lab protocols
- Digital microfluidics simulation
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Experiment with "chemical programming" with full support for programming abstractions. Generate chemical reaction networks, simulate their kinetics, and program their lab protocols on a simulated digital microfluidics device.
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Verdict
The clearest difference is review sentiment: Kaemika at 100% against Stochastic Signal Processing's 67%. Kaemika also leads on rating (5.0 vs 4.7) and iOS requirement (8.0 vs 15.0). Stochastic Signal Processing's advantage is ratings volume (6 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kaemika holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Stochastic Signal Processing has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Stochastic Signal Processing's written reviews are positive against 100% of Kaemika's.
Stochastic Signal Processing ships an update every 5 weeks, Kaemika every 6 weeks. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.
| Parameter | Stochastic Signal Processing | Kaemika |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 5 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 73 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Ian Young | Luca Cardelli |
Customer experience
Stochastic Signal Processing
Kaemika
In-app purchases
Stochastic Signal Processing
No in-app purchases
Kaemika
No in-app purchases
Questions
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