# マタニティパスポート vs 祖父母ninaru（になる）：妊娠・育児を支えるアプリ

The clearest difference is review sentiment: 祖父母ninaru（になる）：妊娠・育児を支えるアプリ at 45% against マタニティパスポート's 2%. マタニティパスポート's advantage is update cadence (every 11 days vs every 6 weeks). 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.

マタニティパスポート ships an update every 11 days, 祖父母ninaru（になる）：妊娠・育児を支えるアプリ every 6 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | マタニティパスポート | 祖父母ninaru（になる）：妊娠・育児を支えるアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 2.0% of reviews | **45.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | — | Free |
| Size | 125 MB | 55 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [ひまわりの会](https://appshunter.io/developer/778389892) | [EVER SENSE, INC.](https://appshunter.io/developer/765195014) |

## What reviewers say

### マタニティパスポート

[App page](https://appshunter.io/ios/app/id1152803933)

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

**In-app purchases:** none


### 祖父母ninaru（になる）：妊娠・育児を支えるアプリ

[App page](https://appshunter.io/ios/app/ninaru/id1485532783)

This app provides daily messages and articles for grandparents, covering pregnancy through their grandchild's sixth birthday. It offers insights into modern parenting, baby's growth milestones, and how to best support expectant mothers.

**Highlights:** Daily messages and articles, Pregnancy countdown, Fetal growth illustrations, Child development schedules, Favorite article saving, Modern parenting tips

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

**In-app purchases:** none


## Frequently asked questions

### Is マタニティパスポート free?

マタニティパスポート is free to download, with no in-app purchases.

### Is 祖父母ninaru（になる）：妊娠・育児を支えるアプリ free?

祖父母ninaru（になる）：妊娠・育児を支えるアプリ is free to download, with no in-app purchases.

### Do マタニティパスポート or 祖父母ninaru（になる）：妊娠・育児を支えるアプリ have ads?

Neither マタニティパスポート nor 祖父母ninaru（になる）：妊娠・育児を支えるアプリ shows ads.

### Which is updated more often, マタニティパスポート or 祖父母ninaru（になる）：妊娠・育児を支えるアプリ?

マタニティパスポート ships an update every 11 days, and 祖父母ninaru（になる）：妊娠・育児を支えるアプリ every 6 weeks. Most recently, マタニティパスポート was updated on November 6, 2026 and 祖父母ninaru（になる）：妊娠・育児を支えるアプリ on November 7, 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.*