# iJishin vs Fulcanelli

The clearest difference is rating: Fulcanelli at 5.0 against iJishin's 1.0. Fulcanelli also leads on update cadence (every 5 days vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Fulcanelli holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

iJishin ships an update every 3 months, Fulcanelli every 5 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iJishin | Fulcanelli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ijishin/id386745649/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fulcanelli/id6788643149/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 21 MB | 5 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hakusan Corporation](https://appshunter.io/developer/386745652) | [mark hendrickson](https://appshunter.io/developer/6788643151) |

## 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


### Fulcanelli

[App page](https://appshunter.io/ios/app/fulcanelli/id6788643149)

Monitor live Earth activity including earthquakes and space weather on an interactive map. Receive daily intelligence briefings summarizing seismic and geomagnetic conditions. This app provides pattern analysis and education, not predictions.

**Highlights:** Live earthquake feed and map, Magnitude and geography filters, Space weather layers and dashboards, Daily Earth Intelligence briefings, Alert preferences

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

**In-app purchases:** none


## Frequently asked questions

### Is iJishin free?

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

### Is Fulcanelli free?

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

### Which has better reviews, iJishin or Fulcanelli?

Fulcanelli is rated higher. iJishin averages 1.0 out of 5 from 1 ratings, while Fulcanelli averages 5.0 from 2 ratings.

### Do iJishin or Fulcanelli have ads?

Neither iJishin nor Fulcanelli shows ads.

### Which is updated more often, iJishin or Fulcanelli?

iJishin ships an update every 3 months, and Fulcanelli every 5 days. Most recently, iJishin was updated on October 13, 2026 and Fulcanelli on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*