# WhispCal vs Kalk

The clearest difference is in-app purchases: Kalk at none against WhispCal's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WhispCal sells 2 in-app purchases, starting at $4.99 per month. Kalk asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | WhispCal | Kalk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 91 MB | 32 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Morice](https://appshunter.io/developer/1770273408) | [Wexla Stockholm](https://appshunter.io/developer/6797542034) |

## What reviewers say

### WhispCal

[App page](https://appshunter.io/ios/app/whispcal-calorie-tracker/id6757860582)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Yearly subscription | $39.99 | per year |


### Kalk

[App page](https://appshunter.io/ios/app/kalk/id6797542032)

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

**In-app purchases:** none


## Frequently asked questions

### Is WhispCal free?

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

### Is Kalk free?

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

### Do WhispCal or Kalk have ads?

Neither WhispCal nor Kalk shows ads.

### Which is updated more often, WhispCal or Kalk?

WhispCal ships an update every 3 days, and Kalk every 3 days. Most recently, WhispCal was updated on October 31, 2026 and Kalk on October 29, 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.*