# Optimum vs Personal Calendar

The clearest difference is update cadence: Personal Calendar at every 2 days against Optimum's every 2 weeks. Personal Calendar also leads on iOS requirement (15.1 vs 26.0). 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.

Optimum ships an update every 2 weeks, Personal Calendar every 2 days. The most recent releases landed on October 28, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Optimum | Personal Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 19 MB | 27 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mohini Sharma](https://appshunter.io/developer/1561856602) | [Yakup Keskin](https://appshunter.io/developer/1884926282) |

## What reviewers say

### Optimum

[App page](https://appshunter.io/ios/app/optimum-planner-and-focus-timer/id6761065515)

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


### Personal Calendar

[App page](https://appshunter.io/ios/app/personal-calendar/id6762839910)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optimum free?

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

### Is Personal Calendar free?

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

### Do Optimum or Personal Calendar have ads?

Neither Optimum nor Personal Calendar shows ads.

### Which is updated more often, Optimum or Personal Calendar?

Optimum ships an update every 2 weeks, and Personal Calendar every 2 days. Most recently, Optimum was updated on October 28, 2026 and Personal Calendar on November 9, 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.*