# RainVis vs Japan Weather Chart

The clearest difference is ads: RainVis at none against Japan Weather Chart's shown. RainVis also leads on update cadence (every 2 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. RainVis sells 2 in-app purchases, starting at $1.99 per month and Japan Weather Chart sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

RainVis ships an update every 2 days, Japan Weather Chart every 2 months. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RainVis | Japan Weather Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rainvis-personalized-forecast/id6767737096/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 15 MB | 14 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brian Hakel](https://appshunter.io/developer/1870979211) | [Yuichiro Niwa](https://appshunter.io/developer/1694263025) |

## What reviewers say

### RainVis

[App page](https://appshunter.io/ios/app/rainvis-personalized-forecast/id6767737096)

Visualize detailed weather data with customizable forecasts. Track rain, temperature, wind, tides, and solunar timing in one view. Ideal for outdoor planning and coastal activities.

**Highlights:** Customizable forecast metrics, Visual hourly previews, Expandable hourly charts, Coastal planning tools, Rain-focused forecast, Current conditions, Radar with history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RainVis Pro Monthly | $1.99 | per month |
| RainVis Pro Annual | $14.99 | per year |


### Japan Weather Chart

[App page](https://appshunter.io/ios/app/japan-weather-chart/id6789171455)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the developer | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is RainVis free?

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

### Is Japan Weather Chart free?

Japan Weather Chart is free to download, with in-app purchases available.

### Do RainVis or Japan Weather Chart have ads?

Japan Weather Chart shows ads; RainVis does not.

### Which is updated more often, RainVis or Japan Weather Chart?

RainVis ships an update every 2 days, and Japan Weather Chart every 2 months. Most recently, RainVis was updated on October 31, 2026 and Japan Weather Chart on October 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.*