Danley Tools vs SISO Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Danley Tools
This app provides essential calculators and reference materials for audio engineering professionals and enthusiasts. It offers tools to assist with various calculations needed in sound system design and analysis.
- Audio engineering calculators
- Reference materials
- Sound system design tools
- Analysis assistance
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Danley calculators and reference
SISO Calculator
This app helps engineers and students understand System Dynamics and Controls. It offers an intuitive interface to quickly analyze controller and plant interactions in both time and frequency domains.
- System Dynamics analysis
- Controls engineering
- Intuitive interface
- Time domain analysis
- Frequency domain analysis
- Controller interaction visualization
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SISO Calculator was built to help practicing engineers and students get an intuitive sense of System Dynamics and Controls. The interface is focused so you can quickly interact with controllers and plants to see immediately how time and frequency interact and how controllers behave.
Screenshots
Verdict
The clearest difference is rating: SISO Calculator at 5.0 against Danley Tools's 4.0. SISO Calculator also leads on update cadence (every 5 weeks vs every 36 months) and ratings volume (3 vs 1). On price, review sentiment, 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.
SISO Calculator holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Danley Tools ships an update every 36 months, SISO Calculator every 5 weeks. Both last shipped on November 3, 2026.
| Parameter | Danley Tools | SISO Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 36 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | sebastian rivas | Deft Dynamics |
Customer experience
Danley Tools
SISO Calculator
In-app purchases
Danley Tools
No in-app purchases
SISO Calculator
No in-app purchases
Questions
Is Danley Tools free?
Is SISO Calculator free?
Which has better reviews, Danley Tools or SISO Calculator?
Do Danley Tools or SISO Calculator have ads?
Which is updated more often, Danley Tools or SISO Calculator?
Other comparisons
