# こども見守りサービス OTTADE!（オッタデ） vs Calendar + Alpha

The clearest difference is device support: こども見守りサービス OTTADE!（オッタデ） at 2 against Calendar + Alpha's —. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | こども見守りサービス OTTADE!（オッタデ） | Calendar + Alpha |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 64 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [otta inc.](https://appshunter.io/developer/966828927) | [SHOTA KITORA](https://appshunter.io/developer/1879737948) |

## What reviewers say

### こども見守りサービス OTTADE!（オッタデ）

[App page](https://appshunter.io/ios/app/ottade/id1521413536)

This service helps ensure the safety of loved ones by tracking their location. It uses beacon technology and GPS to provide peace of mind for parents and guardians, connecting them with their children's whereabouts during daily activities and emergencies.

**Highlights:** Real-time location tracking, Beacon technology for proximity alerts, GPS for nationwide coverage, Voice messaging for communication, Emergency panic button, Community-based watch areas

**Features:** Vision Pro support

**In-app purchases:** none


### Calendar + Alpha

[App page](https://appshunter.io/ios/app/calendar-plus-alpha/id6759598132)

**In-app purchases:** none


## Frequently asked questions

### Is こども見守りサービス OTTADE!（オッタデ） free?

こども見守りサービス OTTADE!（オッタデ） is free to download, with no in-app purchases.

### Is Calendar + Alpha free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*