# Simple Water Tracker vs むくみ予報

The clearest difference is in-app purchases: Simple Water Tracker at none against むくみ予報's 1. Simple Water Tracker also leads on update cadence (every 8 days vs every 5 weeks). むくみ予報's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. むくみ予報 sells 1 one-off in-app purchase. Simple Water Tracker asks for nothing beyond the download.

Simple Water Tracker ships an update every 8 days, むくみ予報 every 5 weeks. The most recent releases landed on September 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Simple Water Tracker | むくみ予報 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-water-tracker-mizunote/id6692617194/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 5 weeks |
| Monetization | Ad-supported | — |
| Size | 31 MB | 6 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Bearcode Co.](https://appshunter.io/developer/1866842765) | [kazunari aoki](https://appshunter.io/developer/6774180811) |

## What reviewers say

### Simple Water Tracker

[App page](https://appshunter.io/ios/app/simple-water-tracker-mizunote/id6692617194)

This app helps you build a healthy hydration habit with smart reminders and easy logging. Track daily intake, view trends, and integrate with Apple Health. All features are available without a subscription.

**Highlights:** Smart reminders for hydration, Daily intake and goal tracking, Home screen widgets, Visual graphs and insights, Customizable drink categories, Apple Health integration, Cloud backup

**In-app purchases:** none


### むくみ予報

[App page](https://appshunter.io/ios/app/id6796861479)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puffiness Forecast Pro | $9.99 | one-time |


## Frequently asked questions

### Is Simple Water Tracker free?

Simple Water Tracker is free to download, with no in-app purchases.

### Is むくみ予報 free?

むくみ予報 is free to download, with in-app purchases available.

### Do Simple Water Tracker or むくみ予報 have ads?

Simple Water Tracker shows ads; むくみ予報 does not.

### Which is updated more often, Simple Water Tracker or むくみ予報?

Simple Water Tracker ships an update every 8 days, and むくみ予報 every 5 weeks. Most recently, Simple Water Tracker was updated on September 18, 2026 and むくみ予報 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.*