# Velocity Filter vs Delay Line

The clearest difference is ratings volume: Velocity Filter at 7 against Delay Line's 2. Velocity Filter also leads on iOS requirement (12.0 vs 17.0). Delay Line's advantage is price ($1.99 vs $2.99). On rating, ads, in-app purchases and monetization model there is nothing between them.

Velocity Filter costs $2.99 and Delay Line $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Velocity Filter against 5.0 for Delay Line. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

## The numbers

| Metric | Velocity Filter | Delay Line |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/velocity-filter/id1473094671/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/delay-line/id6776276739/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Paid | Paid |
| Size | 15 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) |

## What reviewers say

### Velocity Filter

[App page](https://appshunter.io/ios/app/velocity-filter/id1473094671)

This audio unit plugin enhances synthesizer patches by making them responsive to MIDI velocity. It can function as a MIDI-controlled filter or volume control, adding natural musicality to non-velocity-sensitive sounds without altering their core tone.

**Highlights:** MIDI velocity to volume/filter conversion, MIDI-CC and aftertouch control, High-shelf filter modulation, Preserves original patch tone, Batch application to patches

**Features:** macOS Compatibility

**In-app purchases:** none


### Delay Line

[App page](https://appshunter.io/ios/app/delay-line/id6776276739)

This audio effect app offers a high-quality digital delay with smooth parameter control for musical echoes. It's designed to add depth and space to your sound without unwanted noise.

**Highlights:** High-quality digital delay, Smooth parameter interpolation, Feedback control, Musical echoes, Linear interpolation for delay time, Comprehensive parameter smoothing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Velocity Filter free?

Velocity Filter costs $2.99, with no in-app purchases.

### Is Delay Line free?

Delay Line costs $1.99, with no in-app purchases.

### Which has better reviews, Velocity Filter or Delay Line?

Velocity Filter and Delay Line are both rated 5.0 out of 5 on the App Store, from 7 and 2 ratings respectively.

### Do Velocity Filter or Delay Line have ads?

Neither Velocity Filter nor Delay Line shows ads.

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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.*