# S vs Delay Line

The clearest difference is rating: Delay Line at 5.0 against S's 2.6. Delay Line also leads on price ($1.99 vs $2.99). S's advantage is ratings volume (11 vs 2) and iOS requirement (15.6 vs 17.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

Delay Line holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: S has 11 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | S | Delay Line |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | [2.6 (11 ratings)](https://appshunter.io/ios/app/s-modular/id1291071549/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/delay-line/id6776276739/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Paid | Paid |
| Size | 7 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Betowski](https://appshunter.io/developer/538476580) | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-modular/id1291071549)

This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.

**Highlights:** Single-screen interface, Fast, hands-on patching, Vintage 1970s synth sound, Dual oscillators, Resonant ladder filter, Multiple modulation sources

**Features:** Vision Pro support

**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 S free?

S 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, S or Delay Line?

Delay Line is rated higher. S averages 2.6 out of 5 from 11 ratings, while Delay Line averages 5.0 from 2 ratings.

### Do S or Delay Line have ads?

Neither S nor Delay Line shows ads.

---

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