# Owll vs Stats Calendar

The clearest difference is update cadence: Stats Calendar at every 3 months against Owll's every 20 months. Owll's advantage is iOS requirement (13.0 vs 15.6). 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.

Owll ships an update every 20 months, Stats Calendar every 3 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Owll | Stats Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/stats-calendar/id1593233425/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 3 MB | 41 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shinji Kiyoi](https://appshunter.io/developer/1612010883) | [Shinji Hayakawa](https://appshunter.io/developer/1593233427) |

## What reviewers say

### Owll

[App page](https://appshunter.io/ios/app/owll/id1441089762)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stats Calendar

[App page](https://appshunter.io/ios/app/stats-calendar/id1593233425)

This app allows you to easily log and track events, providing insights into their frequency over time. Customize statistics with lists and graphs to visualize your activity. It also offers quick input for recurring events and integrates with your device's calendar.

**Highlights:** Label and manage calendar events, Easy event entry with quick input, View event statistics by label, Customizable statistical displays, Link with device calendar, Display Rokuyou (Japanese calendar system)

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

**In-app purchases:** none


## Frequently asked questions

### Is Owll free?

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

### Is Stats Calendar free?

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

### Do Owll or Stats Calendar have ads?

Neither Owll nor Stats Calendar shows ads.

### Which is updated more often, Owll or Stats Calendar?

Owll ships an update every 20 months, and Stats Calendar every 3 months. Most recently, Owll was updated on October 26, 2026 and Stats Calendar on October 23, 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.*