# iJishin vs 100 World Spirits

The clearest difference is in-app purchases: iJishin at none against 100 World Spirits's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 100 World Spirits sells 1 one-off in-app purchase. iJishin asks for nothing beyond the download.

iJishin ships an update every 3 months, 100 World Spirits every 2 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | iJishin | 100 World Spirits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ijishin/id386745649/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 21 MB | 421 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hakusan Corporation](https://appshunter.io/developer/386745652) | [Sami Kuribara](https://appshunter.io/developer/1891970492) |

## What reviewers say

### iJishin

[App page](https://appshunter.io/ios/app/ijishin/id386745649)

This application transforms your iPhone into a seismometer, allowing you to measure and analyze seismic vibrations. You can upload your observations to share with the public and utilize various tools for wave analysis, including graphical displays of power spectrum and displacement.

**Highlights:** Transforms iPhone into a seismometer, Measures seismic vibrations, Analyzes wave data, Uploads seismic observations, Graphical display of power spectrum, Measures velocity and displacement

**Features:** Vision Pro support

**In-app purchases:** none


### 100 World Spirits

[App page](https://appshunter.io/ios/app/100-world-spirits/id6778206775)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 World Spirits Premium | $3.99 | one-time |


## Frequently asked questions

### Is iJishin free?

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

### Is 100 World Spirits free?

100 World Spirits is free to download, with in-app purchases available.

### Do iJishin or 100 World Spirits have ads?

Neither iJishin nor 100 World Spirits shows ads.

### Which is updated more often, iJishin or 100 World Spirits?

iJishin ships an update every 3 months, and 100 World Spirits every 2 months. Most recently, iJishin was updated on November 1, 2026 and 100 World Spirits on November 7, 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.*