Filters vs SpeedyMarks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Filters
This application assists in calculating electronic filter components for speaker systems. It automatically determines inductor and capacitor values based on desired impedance and cutoff frequency, and designs circuits for various speaker types. Users can visualize frequency and phase diagrams for their custom speaker designs.
- Automatic electronic component calculation
- Frequency and phase diagram display (Bode plots)
- Electronic circuit schema display
- Support for various speaker types (high, mid, low, sub)
- First and second-order filter design
- Complete filter theory and formulas
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"Filters" is an application for the calculation of electronic filters for the construction of speaker systems. The program automatically calculates the values of electronic components (inductors, capacitors) of electronic filters depending by the desired speaker impedance and the cutoff frequency. The software can calculate and design the circuits (filters) for high, medium, low, sub woofer, etc... first and second order. Once calculated the filter’s circuit the app will automatically design for You the frequency and phase diagrams (Bode plots). Build the speakers of your dreams with "Filters"! Features: - Automatic calculation of the electronic components of the filters for high, medium, low, sub woofers etc... - Display of frequency and phase diagrams (Bode plots) for the calculated values of the circuit’s electronic components - Display electronic circuit’s schema (filter) - Complete theory for formulas/circuits for all the filters implemented in "Filters"
SpeedyMarks
Create visual bookmarks for your favorite websites and access them from anywhere. Sync your bookmarks across devices for seamless browsing. Inspired by Opera's Speed Dial feature.
- Visual bookmark creation
- Website screenshots
- Cross-device synchronization
- Browser cookie storage
- Server-side storage
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SpeedyMarks makes it easy to create visual bookmarks and quickly open your favorite web sites. It is insprired by Operas Speed Dial feature. The screenshots for the web sites are provided by PagePeeker. The SpeedyMarks are either stored as a cookie in the browser on your device or on our server so that you can access and manage them from everywhere.
Screenshots
Verdict
The clearest difference is rating: Filters at 3.0 against SpeedyMarks's 1.0. Filters also leads on price ($0.99 vs $1.99). SpeedyMarks's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On review sentiment, ratings volume, update cadence and ads 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
Filters costs $0.99 and SpeedyMarks $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Filters holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Filters ships an update every 40 months, SpeedyMarks every 32 months. The most recent releases landed on September 7, 2026 and September 8, 2026 respectively.
| Parameter | Filters | SpeedyMarks |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 3.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 40 months | Every 32 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 17+ |
| Developer | Gianluca Natalini | Piet Jonas |
Customer experience
Filters
SpeedyMarks
In-app purchases
Filters
No in-app purchases
SpeedyMarks
No in-app purchases
