# Delay Calc vs mRecall

The clearest difference is rating: mRecall at 5.0 against Delay Calc's 4.5. mRecall also leads on update cadence (every 3 months vs every 36 months). Delay Calc's advantage is iOS requirement (10.0 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

mRecall holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

Delay Calc ships an update every 36 months, mRecall every 3 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Delay Calc | mRecall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/delay-calc/id562621643/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mrecall/id1562146561/reviews)** |
| Number of ratings | **6** | 3 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 1 MB | 35 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kevlee Software LLC](https://appshunter.io/developer/562619440) | [Waves Inc.](https://appshunter.io/developer/789138269) |

## What reviewers say

### Delay Calc

[App page](https://appshunter.io/ios/app/delay-calc/id562621643)

This app helps musicians and recording engineers calculate delay and modulation times based on BPM. Input your BPM and select rhythmic values to instantly get precise timings in milliseconds or hertz for your audio effects.

**Highlights:** BPM to millisecond conversion, BPM to hertz conversion, Rhythmic value selection, Delay time calculation, Modulation time calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### mRecall

[App page](https://appshunter.io/ios/app/mrecall/id1562146561)

This application allows users to quickly recall audio scenes and snapshots created in Waves host applications. It's designed for use with Waves SuperRack and the eMotion LV1 live mixer over a Wi-Fi network.

**Highlights:** Quick audio scene recall, Snapshot recall, Designed for Waves SuperRack, Designed for eMotion LV1, Wi-Fi network connectivity, Mobile interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Delay Calc free?

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

### Is mRecall free?

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

### Which has better reviews, Delay Calc or mRecall?

mRecall is rated higher. Delay Calc averages 4.5 out of 5 from 6 ratings, while mRecall averages 5.0 from 3 ratings.

### Do Delay Calc or mRecall have ads?

Neither Delay Calc nor mRecall shows ads.

### Which is updated more often, Delay Calc or mRecall?

Delay Calc ships an update every 36 months, and mRecall every 3 months. Most recently, Delay Calc was updated on October 3, 2026 and mRecall 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.*