# Vuulpi vs Kırmızı Kalem

The clearest difference is update cadence: Vuulpi at every 5 days against Kırmızı Kalem's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

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

Vuulpi ships an update every 5 days, Kırmızı Kalem fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Vuulpi | Kırmızı Kalem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 44 MB | 70 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OKULBOX BILISIM TEKNOLOJILERI LIMITED SIRKETI](https://appshunter.io/developer/6819234351) | [TURUNCU KATMAN YAZILIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1877528998) |

## What reviewers say

### Vuulpi

[App page](https://appshunter.io/ios/app/vuulpi/id6789707763)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kırmızı Kalem

[App page](https://appshunter.io/ios/app/krmz-kalem/id6793075788)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vuulpi free?

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

### Is Kırmızı Kalem free?

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

### Do Vuulpi or Kırmızı Kalem have ads?

Neither Vuulpi nor Kırmızı Kalem shows ads.

### Which is updated more often, Vuulpi or Kırmızı Kalem?

Vuulpi ships an update every 5 days, and Kırmızı Kalem fortnightly. Most recently, Vuulpi was updated on October 24, 2026 and Kırmızı Kalem 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.*