# F vs Filterstep

The clearest difference is price: Filterstep at Free against F's $2.99. Filterstep also leads on iOS requirement (9.3 vs 12.0). F's advantage is rating (5.0 vs 4.7). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Filterstep is free to download; F costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

F holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 18 and 42 respectively. Written reviews point the same way: 78% of F's written reviews are positive against 73% of Filterstep's.

F ships an update every 8 months, Filterstep every 6 months. Both last shipped on October 1, 2026.

## The numbers

| Metric | F | Filterstep |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (18 ratings)](https://appshunter.io/ios/app/f-16-filter/id1074502761/reviews)** | [4.7 (42 ratings)](https://appshunter.io/ios/app/filterstep/id1500042551/reviews) |
| Number of ratings | 18 | **42** |
| Positive reviews | **77.8% of reviews** | 73.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 15 MB | 12 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) | [AUDIOMODERN](https://appshunter.io/developer/1435691908) |

## What reviewers say

### F

[App page](https://appshunter.io/ios/app/f-16-filter/id1074502761)

This audio effect plugin offers sixteen versatile filter modes with precise controls for frequency, resonance, and analog-style saturation. Visualize your frequency response in real-time for intuitive adjustments. It integrates seamlessly with popular AUv3 compatible music production apps.

**Highlights:** Sixteen filter modes, Frequency and resonance controls, Analog-style saturation, Wet/dry mix, Frequency response display, Zero Delay Feedback algorithm

**In-app purchases:** none


### Filterstep

[App page](https://appshunter.io/ios/app/filterstep/id1500042551)

This app offers a creative motion filter plugin for real-time rhythmic movement. Explore intricate patterns and sonic possibilities with various filter effect settings and randomization. Shape any sound into a unique groove.

**Highlights:** Real-time rhythmic movement, Intricate filter effect settings, Filter randomization, Three filter types, Sequencer movement control, Infinity mode

**In-app purchases:** none


## Frequently asked questions

### Is F free?

F costs $2.99, with no in-app purchases.

### Is Filterstep free?

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

### Which has better reviews, F or Filterstep?

F is rated higher. F averages 5.0 out of 5 from 18 ratings, while Filterstep averages 4.7 from 42 ratings.

### Do F or Filterstep have ads?

Neither F nor Filterstep shows ads.

### Which is updated more often, F or Filterstep?

F ships an update every 8 months, and Filterstep every 6 months. Most recently, F was updated on October 1, 2026 and Filterstep on October 1, 2026.

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