# Mersea  メルシー vs ninpath

The clearest difference is review sentiment: Mersea  メルシー at 29% against ninpath's 17%. Mersea  メルシー also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Mersea  メルシー ships an update every 6 weeks, ninpath every 2 months. The most recent releases landed on June 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Mersea  メルシー | ninpath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ninpath/id1538735316/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **28.6% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 89 MB | 34 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Womens Kampo Inc.](https://appshunter.io/developer/1220678073) | [ninpath Inc.](https://appshunter.io/developer/1537446947) |

## What reviewers say

### Mersea  メルシー

[App page](https://appshunter.io/ios/app/mersea/id1220678074)

This app offers personalized advice for creating a body more conducive to pregnancy, based on individual constitution. It provides support for the physical and emotional anxieties of those trying to conceive, with guidance on diet, exercise, sleep, and mental well-being.

**Highlights:** Personalized constitution analysis, Pregnancy-ready body advice, Diet, exercise, sleep, and mental care tips, Basal body temperature tracking, HealthKit integration for temperature data

**Features:** macOS Compatibility

**In-app purchases:** none


### ninpath

[App page](https://appshunter.io/ios/app/ninpath/id1538735316)

This app helps couples track and manage fertility treatments. It offers insights from anonymized third-party data to provide an objective view of your situation and aid in decision-making. Mental health checks and online counseling are also available.

**Highlights:** Fertility treatment tracking, Treatment data management, Third-party treatment data insights, Mental health checks, Online counseling, Objective situation assessment

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

**In-app purchases:** none


## Frequently asked questions

### Is Mersea  メルシー free?

Mersea  メルシー is free to download, with no in-app purchases.

### Is ninpath free?

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

### Do Mersea  メルシー or ninpath have ads?

Neither Mersea  メルシー nor ninpath shows ads.

### Which is updated more often, Mersea  メルシー or ninpath?

Mersea  メルシー ships an update every 6 weeks, and ninpath every 2 months. Most recently, Mersea  メルシー was updated on June 11, 2026 and ninpath on September 10, 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.*