Filters vs InNote
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"
InNote
Capture inspiration, manage knowledge, and document your life with a minimalist note-taking tool. Effortlessly preserve important moments using text, voice, video, or map locations.
- Text notes
- Voice recording
- Video capture
- Map location saving
- Minimalist design
- Knowledge management
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A minimalist yet powerful multi-functional note-taking tool designed for capturing inspiration, managing knowledge, and documenting life. Whether it's text, voice, video, or map locations, InNote helps you effortlessly preserve every important moment.
Screenshots
Verdict
The clearest difference is review sentiment: InNote at 100% against Filters's 0%. InNote also leads on price (Free vs $0.99) and update cadence (every 2 months vs every 40 months). On ads, in-app purchases, device support and iOS requirement 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
InNote is free to download; Filters costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Filters ships an update every 40 months, InNote every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Filters | InNote |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 40 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 59 MB |
| Age rating | 4+ | 12+ |
| Developer | Gianluca Natalini | 红喜 燕 |
Customer experience
Filters
InNote
In-app purchases
Filters
No in-app purchases
InNote
No in-app purchases
