# K vs vocalarm

The clearest difference is in-app purchases: vocalarm at none against K's 1. vocalarm also leads on update cadence (every 2 days vs every 9 days) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. K sells 1 in-app purchase, starting at $1.99 per year. vocalarm asks for nothing beyond the download.

K ships an update every 9 days, vocalarm every 2 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | K | vocalarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Size | 20 MB | 3 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kitta Co.](https://appshunter.io/developer/1896674871) | [Seojung Park](https://appshunter.io/developer/6813107341) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-card-reader/id6770570934)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $1.99 | per year |


### vocalarm

[App page](https://appshunter.io/ios/app/vocalarm/id6813107339)

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

**In-app purchases:** none


## Frequently asked questions

### Is K free?

K is free to download, with in-app purchases available.

### Is vocalarm free?

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

### Do K or vocalarm have ads?

Neither K nor vocalarm shows ads.

### Which is updated more often, K or vocalarm?

K ships an update every 9 days, and vocalarm every 2 days. Most recently, K was updated on November 10, 2026 and vocalarm on November 10, 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.*