# Filters vs MXTNote

The clearest difference is price: MXTNote at Free against Filters's $0.99. MXTNote also leads on rating (5.0 vs 3.0) and update cadence (every 2 weeks vs every 40 months). On ratings volume, ads and in-app purchases there is nothing between them.

MXTNote is free to download; Filters costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MXTNote holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Filters ships an update every 40 months, MXTNote every 2 weeks. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Filters | MXTNote |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/filters/id369326771/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mxtnote/id1518415738/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 131 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Tao Ma](https://appshunter.io/developer/1518415737) |

## What reviewers say

### Filters

[App page](https://appshunter.io/ios/app/filters/id369326771)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### MXTNote

[App page](https://appshunter.io/ios/app/mxtnote/id1518415738)

This app helps organize research and study materials by linking PDFs, notes, and web pages. It offers PDF reading, text and handwriting notes, and an arXiv explorer for academic papers. Create a knowledge graph to visualize connections between your research fragments.

**Highlights:** PDF reader with link navigation, Text and handwriting note-taking, Link notes and PDFs to create a knowledge graph, ARXIV explorer for academic papers, Web page import (HTML to PDF), OCR and image search for PDFs, Sync across devices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Filters free?

Filters costs $0.99, with no in-app purchases.

### Is MXTNote free?

MXTNote is free to download, with no in-app purchases.

### Which has better reviews, Filters or MXTNote?

MXTNote is rated higher. Filters averages 3.0 out of 5 from 1 ratings, while MXTNote averages 5.0 from 2 ratings.

### Do Filters or MXTNote have ads?

Neither Filters nor MXTNote shows ads.

### Which is updated more often, Filters or MXTNote?

Filters ships an update every 40 months, and MXTNote every 2 weeks. Most recently, Filters was updated on September 22, 2026 and MXTNote on September 24, 2026.

---

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