# 潮汐 vs 潮時計

The clearest difference is in-app purchases: 潮時計 at none against 潮汐's 4. 潮時計 also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 潮汐 sells 4 one-off in-app purchases. 潮時計 asks for nothing beyond the download.

潮汐 ships an update every 6 weeks, 潮時計 weekly. The most recent releases landed on September 13, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 潮汐 | 潮時計 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tide/id1600592667/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 69 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [Tsuyoshi Yokoyama](https://appshunter.io/developer/6794326203) |

## What reviewers say

### 潮汐

[App page](https://appshunter.io/ios/app/tide/id1600592667)

Access real-time tide and tidal level information across the country. View detailed tide graphs, moon phases, and up to three days of weather forecasts. This app provides quick access to high and low tide data.

**Highlights:** Tide information, Tidal level data, Tide graphs, Moon phase information, 3-day weather forecast

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| 開発者応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


### 潮時計

[App page](https://appshunter.io/ios/app/id6794326201)

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

**In-app purchases:** none


## Frequently asked questions

### Is 潮汐 free?

潮汐 is free to download, with in-app purchases available.

### Is 潮時計 free?

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

### Do 潮汐 or 潮時計 have ads?

潮汐 shows ads; 潮時計 does not.

### Which is updated more often, 潮汐 or 潮時計?

潮汐 ships an update every 6 weeks, and 潮時計 weekly. Most recently, 潮汐 was updated on September 13, 2026 and 潮時計 on September 12, 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.*