# まいスケジュール Lite vs PH System

The clearest difference is ads: PH System at none against まいスケジュール Lite's shown. PH System also leads on iOS requirement (13 vs 15.5). まいスケジュール Lite's advantage is update cadence (every 2 weeks vs every 15 months). On price, 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.

まいスケジュール Lite ships an update every 2 weeks, PH System every 15 months. The most recent releases landed on October 15, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | まいスケジュール Lite | PH System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/lite/id432056665/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 59.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 15 months |
| Monetization | Ad-supported | — |
| Size | 8 MB | 25 MB |
| Requires iOS | 15.5 | **13** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [minoru takeuchi](https://appshunter.io/developer/739652217) | [barnet Inc.](https://appshunter.io/developer/1203142034) |

## What reviewers say

### まいスケジュール Lite

[App page](https://appshunter.io/ios/app/lite/id432056665)

This app helps manage your schedule by syncing with your iPhone's standard calendar. It allows you to link photos to events, perform calculations within notes, and manage events with bulk operations. It also offers Apple Watch support for viewing events.

**Highlights:** Syncs with iPhone standard calendar, Link photos to events (iOS 15+), Photo diary feature, Note calculation function, Apple Watch support (view only), Bulk event deletion, copy, and move, Automatic local backups

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### PH System

[App page](https://appshunter.io/ios/app/ph-system/id1438705034)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is まいスケジュール Lite free?

まいスケジュール Lite is free to download, with no in-app purchases.

### Is PH System free?

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

### Do まいスケジュール Lite or PH System have ads?

まいスケジュール Lite shows ads; PH System does not.

### Which is updated more often, まいスケジュール Lite or PH System?

まいスケジュール Lite ships an update every 2 weeks, and PH System every 15 months. Most recently, まいスケジュール Lite was updated on October 15, 2026 and PH System on September 25, 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.*