# MEGA地震予測 vs Gutenberg Lab

The clearest difference is in-app purchases: Gutenberg Lab at none against MEGA地震予測's 1. Gutenberg Lab also leads on update cadence (every 4 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MEGA地震予測 sells 1 in-app purchase, starting at $3.49 per month. Gutenberg Lab asks for nothing beyond the download.

MEGA地震予測 ships an update every 3 months, Gutenberg Lab every 4 days. The most recent releases landed on September 29, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | MEGA地震予測 | Gutenberg Lab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 10.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Subscription | — |
| Size | 42 MB | 49 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [JESEA](https://appshunter.io/developer/1252972114) | [VEQ LIMITED LIABILIRTY CO.](https://appshunter.io/developer/1282136612) |

## What reviewers say

### MEGA地震予測

[App page](https://appshunter.io/ios/app/mega/id1252972115)

This app provides earthquake predictions based on a unique surveying approach. It analyzes data from nationwide electronic reference points and private observation points to detect precursor phenomena. Predictions are visualized by area and updated weekly.

**Highlights:** PUSH notifications for updates, Graph display of electronic reference point fluctuations, Area-specific earthquake predictions, Access to past articles and predictions, Weekly forecast delivery

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MEGA地震予測 | $3.49 | per month |


### Gutenberg Lab

[App page](https://appshunter.io/ios/app/gutenberg-lab/id6790106275)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MEGA地震予測 free?

MEGA地震予測 is free to download, with in-app purchases available.

### Is Gutenberg Lab free?

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

### Do MEGA地震予測 or Gutenberg Lab have ads?

Neither MEGA地震予測 nor Gutenberg Lab shows ads.

### Which is updated more often, MEGA地震予測 or Gutenberg Lab?

MEGA地震予測 ships an update every 3 months, and Gutenberg Lab every 4 days. Most recently, MEGA地震予測 was updated on September 29, 2026 and Gutenberg Lab on September 19, 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.*