# Chalkak Calendar vs Vertical Calendar

The clearest difference is in-app purchases: Chalkak Calendar at none against Vertical Calendar's 2. Vertical Calendar's advantage is update cadence (weekly vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Vertical Calendar sells 2 in-app purchases, starting at $1.99 per month. Chalkak Calendar asks for nothing beyond the download.

Chalkak Calendar ships an update every 3 weeks, Vertical Calendar weekly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Chalkak Calendar | Vertical Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vertical-calendar-planner/id6751930821/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 13 MB | 52 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HAN WOOL OH](https://appshunter.io/developer/1400030263) | [naoki otsu](https://appshunter.io/developer/1082476153) |

## What reviewers say

### Chalkak Calendar

[App page](https://appshunter.io/ios/app/chalkak-calendar/id6743258044)

Effortlessly add event details from ticket screenshots directly to your calendar. This AI-powered tool scans your booking confirmations, extracting essential information like title, date, and time with a simple voice command.

**Highlights:** AI ticket scanning, Siri Shortcuts integration, Automatic calendar sync, Supports multiple ticket providers, Handles movies, concerts, and sports, Works with shared tickets

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

**In-app purchases:** none


### Vertical Calendar

[App page](https://appshunter.io/ios/app/vertical-calendar-planner/id6751930821)

Organize your life with a vertical monthly calendar and unlimited tabs. Easily create color-coded events, search your schedule, and enjoy offline access. Secure your data with biometric authentication.

**Highlights:** Vertical monthly calendar view, One-tap appointment creation, Unlimited tab creation for organization, Color-coded event highlighting, Global event search, Automatic backup and restore, Biometric authentication for security

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium | $19.99 | per year |


## Frequently asked questions

### Is Chalkak Calendar free?

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

### Is Vertical Calendar free?

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

### Do Chalkak Calendar or Vertical Calendar have ads?

Both Chalkak Calendar and Vertical Calendar show ads.

### Which is updated more often, Chalkak Calendar or Vertical Calendar?

Chalkak Calendar ships an update every 3 weeks, and Vertical Calendar weekly. Most recently, Chalkak Calendar was updated on October 24, 2026 and Vertical Calendar on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*