# iCalvinus vs Auralize

The clearest difference is update cadence: iCalvinus at every 3 days against Auralize's every 3 months. iCalvinus also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.2). On price, 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.

iCalvinus ships an update every 3 days, Auralize every 3 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iCalvinus | Auralize |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 months |
| Size | 58 MB | 24 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dzigne Sistemas e Tecnologia LTDA ME](https://appshunter.io/developer/650792218) | [AURALIZE SOFTWARE LTDA](https://appshunter.io/developer/6796823224) |

## What reviewers say

### iCalvinus

[App page](https://appshunter.io/ios/app/icalvinus-scipb/id1612910020)

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

**In-app purchases:** none


### Auralize

[App page](https://appshunter.io/ios/app/auralize-sound-level-meter/id6496508273)

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

**In-app purchases:** none


## Frequently asked questions

### Is iCalvinus free?

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

### Is Auralize free?

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

### Do iCalvinus or Auralize have ads?

Neither iCalvinus nor Auralize shows ads.

### Which is updated more often, iCalvinus or Auralize?

iCalvinus ships an update every 3 days, and Auralize every 3 months. Most recently, iCalvinus was updated on October 30, 2026 and Auralize on October 25, 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.*