# F vs Stereo Lag Time

The clearest difference is price: Stereo Lag Time at Free against F's $2.99. Stereo Lag Time also leads on update cadence (every 3 months vs every 8 months). F's advantage is rating (5.0 vs 4.5). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Stereo Lag Time 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 4.5. Both are backed by a comparable volume of ratings — 18 and 38 respectively. Written reviews point the same way: 78% of F's written reviews are positive against 72% of Stereo Lag Time's.

F ships an update every 8 months, Stereo Lag Time every 3 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | F | Stereo Lag Time |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (18 ratings)](https://appshunter.io/ios/app/f-16-filter/id1074502761/reviews)** | [4.5 (38 ratings)](https://appshunter.io/ios/app/stereo-lag-time/id1459615373/reviews) |
| Number of ratings | 18 | **38** |
| Positive reviews | **77.8% of reviews** | 72.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 15 MB | 1 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## 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


### Stereo Lag Time

[App page](https://appshunter.io/ios/app/stereo-lag-time/id1459615373)

This audio unit plugin creates a subtle delay between stereo channels, mimicking the Haas effect for a wider, more natural stereo image. It offers precise control over small delays and includes pitch modulation when changing delay times.

**Highlights:** Creates stereo channel delay, Mimics Haas effect, Precise control over small delays, Pitch modulation on delay change, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is F free?

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

### Is Stereo Lag Time free?

Stereo Lag Time is free to download, with no in-app purchases.

### Which has better reviews, F or Stereo Lag Time?

F is rated higher. F averages 5.0 out of 5 from 18 ratings, while Stereo Lag Time averages 4.5 from 38 ratings.

### Do F or Stereo Lag Time have ads?

Neither F nor Stereo Lag Time shows ads.

### Which is updated more often, F or Stereo Lag Time?

F ships an update every 8 months, and Stereo Lag Time every 3 months. Most recently, F was updated on October 24, 2026 and Stereo Lag Time on October 23, 2026.

---

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