# Kalender vs Smart Notes AI Pro

The clearest difference is in-app purchases: Kalender at none against Smart Notes AI Pro's 3. Kalender also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Smart Notes AI Pro sells 3 in-app purchases, starting at $1.99 per month. Kalender asks for nothing beyond the download.

Kalender ships an update weekly, Smart Notes AI Pro every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Kalender | Smart Notes AI Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 19 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Okan Aktas](https://appshunter.io/developer/1787013684) | [Mert Tuna](https://appshunter.io/developer/1878131951) |

## What reviewers say

### Kalender

[App page](https://appshunter.io/ios/app/kalender-akll-randevu/id6748649645)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Notes AI Pro

[App page](https://appshunter.io/ios/app/smart-notes-ai-pro/id6760021954)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $9.99 | per year |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is Kalender free?

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

### Is Smart Notes AI Pro free?

Smart Notes AI Pro is free to download, with in-app purchases available.

### Do Kalender or Smart Notes AI Pro have ads?

Neither Kalender nor Smart Notes AI Pro shows ads.

### Which is updated more often, Kalender or Smart Notes AI Pro?

Kalender ships an update weekly, and Smart Notes AI Pro every 3 weeks. Most recently, Kalender was updated on October 30, 2026 and Smart Notes AI Pro on October 31, 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.*