# Pi vs OKIN Commander

The clearest difference is iOS requirement: OKIN Commander at 11.0 against Pi's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Pi ships an update every 5 months, OKIN Commander every 4 months. The most recent releases landed on October 19, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Pi | OKIN Commander |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pi-anniversary/id566743904/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 4 MB | 21 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sestra Studio](https://appshunter.io/developer/566743907) | [DewertOkin GmbH](https://appshunter.io/developer/586544281) |

## What reviewers say

### Pi

[App page](https://appshunter.io/ios/app/pi-anniversary/id566743904)

Never miss an important date again! This app helps you save and track anniversaries with custom reminders. It supports various time units and allows you to create your own event parameters for personalized tracking.

**Highlights:** Save and track anniversaries, Customizable reminders, Support for various time units, Create custom event parameters, Track nerdy and significant events

**Features:** macOS Compatibility

**In-app purchases:** none


### OKIN Commander

[App page](https://appshunter.io/ios/app/okin-commander/id1370351526)

**In-app purchases:** none


## Frequently asked questions

### Is Pi free?

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

### Is OKIN Commander free?

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

### Do Pi or OKIN Commander have ads?

Neither Pi nor OKIN Commander shows ads.

### Which is updated more often, Pi or OKIN Commander?

Pi ships an update every 5 months, and OKIN Commander every 4 months. Most recently, Pi was updated on October 19, 2026 and OKIN Commander on October 26, 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.*