# 予防接種スケジューラー vs KODAIRA

The clearest difference is update cadence: 予防接種スケジューラー at every 3 months against KODAIRA's every 7 months. KODAIRA's advantage is iOS requirement (8.0 vs 11.0). 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.

予防接種スケジューラー ships an update every 3 months, KODAIRA every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 予防接種スケジューラー | KODAIRA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id499802103/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Size | 36 MB | 18 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [「VPD(ワクチンで防げる病気)を知って、子どもを守ろう。」の会](https://appshunter.io/developer/499802106) | [医療法人輝](https://appshunter.io/developer/1475735407) |

## What reviewers say

### 予防接種スケジューラー

[App page](https://appshunter.io/ios/app/id499802103)

**Features:** Vision Pro support

**In-app purchases:** none


### KODAIRA

[App page](https://appshunter.io/ios/app/kodaira/id1510278215)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 予防接種スケジューラー free?

予防接種スケジューラー is free to download, with no in-app purchases.

### Is KODAIRA free?

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

### Do 予防接種スケジューラー or KODAIRA have ads?

Neither 予防接種スケジューラー nor KODAIRA shows ads.

### Which is updated more often, 予防接種スケジューラー or KODAIRA?

予防接種スケジューラー ships an update every 3 months, and KODAIRA every 7 months. Most recently, 予防接種スケジューラー was updated on November 6, 2026 and KODAIRA on November 3, 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.*