# J vs DivisorDescent

The clearest difference is device support: J at 3 against DivisorDescent's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | J | DivisorDescent |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | — |
| Monetization | Free | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [National Research Institute for Earth Science and Disaster Prevention](https://appshunter.io/developer/427125457) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-shis/id517160013)

This app provides official earthquake hazard maps for Japan, allowing users to view predictions of ground shaking intensity. It offers detailed information based on location and displays fault lines and seismic activity models.

**Highlights:** View national earthquake hazard maps, Zoom, pan, and adjust map transparency, Display probabilistic seismic hazard maps, Show surface and deep ground maps, View earthquake source fault locations, Display seismic activity models, Show location-specific earthquake probabilities

**Features:** Vision Pro support

**In-app purchases:** none


### DivisorDescent

[App page](https://appshunter.io/ios/app/divisordescent/id6751701929)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is J free?

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

### Is DivisorDescent free?

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

### Do J or DivisorDescent have ads?

Neither J nor DivisorDescent shows ads.

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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.*