# iJishin vs ISSMGE

The clearest difference is update cadence: ISSMGE at monthly against iJishin's every 3 months. ISSMGE also leads on iOS requirement (14.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

iJishin ships an update every 3 months, ISSMGE monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | iJishin | ISSMGE |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 21 MB | 13 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hakusan Corporation](https://appshunter.io/developer/386745652) | [ARGO-E GROUP I.K.E.](https://appshunter.io/developer/1263435304) |

## 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


### ISSMGE

[App page](https://appshunter.io/ios/app/issmge/id1263435305)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iJishin free?

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

### Is ISSMGE free?

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

### Do iJishin or ISSMGE have ads?

Neither iJishin nor ISSMGE shows ads.

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

iJishin ships an update every 3 months, and ISSMGE monthly. Most recently, iJishin was updated on November 1, 2026 and ISSMGE on November 2, 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.*