# Group03カレンダー vs TimerCal

The clearest difference is ads: Group03カレンダー at none against TimerCal's shown. Group03カレンダー also leads on iOS requirement (15.0 vs 26.0). TimerCal's advantage is update cadence (every 4 days vs every 2 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.

Group03カレンダー ships an update every 2 months, TimerCal every 4 days. Both last shipped on September 19, 2026.

## The numbers

| Metric | Group03カレンダー | TimerCal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 52 MB | 10 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [katsutoshi Kono](https://appshunter.io/developer/1582632451) | [Takashi Hamanaka](https://appshunter.io/developer/1707678439) |

## What reviewers say

### Group03カレンダー

[App page](https://appshunter.io/ios/app/group03/id1582632449)

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

**In-app purchases:** none


### TimerCal

[App page](https://appshunter.io/ios/app/timercal/id6596728778)

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

**In-app purchases:** none


## Frequently asked questions

### Is Group03カレンダー free?

Group03カレンダー is free to download, with no in-app purchases.

### Is TimerCal free?

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

### Do Group03カレンダー or TimerCal have ads?

TimerCal shows ads; Group03カレンダー does not.

### Which is updated more often, Group03カレンダー or TimerCal?

Group03カレンダー ships an update every 2 months, and TimerCal every 4 days. Most recently, Group03カレンダー was updated on September 19, 2026 and TimerCal on September 19, 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.*