# BirthDad 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: BirthDad at 86% against 祖父母ninaru（になる）：妊娠・育児を支えるアプリ's 45%. BirthDad also leads on update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (13.6 vs 18.0). 祖父母ninaru（になる）：妊娠・育児を支えるアプリ's advantage is ads (none vs shown) and monetization model (free vs ad-supported). 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.

BirthDad ships an update every 2 weeks, 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 September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | BirthDad | 祖父母ninaru（になる）：妊娠・育児を支えるアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/birthdad/id476005657/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **86.4% of reviews** | 45.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 11 MB | 55 MB |
| Requires iOS | **13.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ms](https://appshunter.io/developer/377889543) | [EVER SENSE, INC.](https://appshunter.io/developer/765195014) |

## What reviewers say

### BirthDad

[App page](https://appshunter.io/ios/app/birthdad/id476005657)

This application serves as a birth calendar specifically designed for husbands in Japan. It helps track and manage important dates related to childbirth.

**Highlights:** Birth calendar functionality, Designed for husbands, Japan-specific, Free to download

**Features:** macOS Compatibility, 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 BirthDad free?

BirthDad 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 BirthDad or 祖父母ninaru（になる）：妊娠・育児を支えるアプリ have ads?

BirthDad shows ads; 祖父母ninaru（になる）：妊娠・育児を支えるアプリ does not.

### Which is updated more often, BirthDad or 祖父母ninaru（になる）：妊娠・育児を支えるアプリ?

BirthDad ships an update every 2 weeks, and 祖父母ninaru（になる）：妊娠・育児を支えるアプリ every 6 weeks. Most recently, BirthDad was updated on September 19, 2026 and 祖父母ninaru（になる）：妊娠・育児を支えるアプリ 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.*