# EqForecast — PreSeismic Alert Service Italy

> Pre-seismic alert service for Italy based on gravitational forces and historical seismicity. (iPhone/iPad app by EqForecast.)

- Source: https://appshunter.io/ios/app/eqforecast/id1561772135 (this page in markdown: same URL + `.md`)
- Developer: [EqForecast](https://appshunter.io/developer/1561772467)
- Category: Weather, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 40 MB
- Languages: American English
- Released: 2022-01-13
- Data updated: 2026-07-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/eqforecast/id1561772135/reviews.md

## What is EqForecast?

Eqforecast is the application that processes the correlations between the forces of gravitational attraction, exerted by the moon and planets, and the historical seismicity data, at a time and in a place indicated by the user (the model is in continuous improvement), identifying earthquakes potentially precursors of stronger and more dangerous earthquakes for human and animal life.

This APP works for Eqs in Italy and, unlike the others on the market, allows you to receive alerts BEFORE the arrival of a strong shock, because it is not based on the detection of the seismic waves just caused by the earthquake that has already occurred, but on astronomical algorithms and known seismic sequences, which normally they anticipate the seismic trigger of the strongest quake.
Several scientific studies have highlighted the possibility that the gravitational attraction (in particular of the Moon and the Sun) can influence the terrestrial tidal forces and the latter earthquakes. The studies of the EqForecast Research Group introduce new elements, for which the action of the 7 planets of the Solar System (with the exception of Pluto) would also have a role in triggering earthquakes.

The App was conceived with a "scientific" spirit. It allows users to verify these studies and to make their own contribution to research on the interpretation and prediction of earthquakes.
The application is not yet a validated model for forecasting earthquakes, which, according to scientists, depend on a complex system of factors, which vary from situation to situation, continuously studied by the scientific community.
 
Once registered and logged in, with the FREE default version the user can view the seismic risk prediction in the 2 dimensions of the seismic risk time and the maximum expected magnitude (Richter) in the App home, but you will not yet be enabled to prediction of the location at risk (possible epicenter), nor upon receipt of sound notifications of pre-seismic alerts.

ALERTS AND LOCATION OF SEISMIC RISK
The functions of receiving pre-seismic sound alerts ("lifesaving" alert) and indicating the potential epicentral location of the future earthquake require the subscription to the BASE or PRO subscription for a fee, but it is possible to take advantage of a trial period of 30 free of charge. days.
The alerts consist of sound notifications directed to your mobile phone which always contain the three dimensions of the seismic risk:
- the "where" (range 30-60 km)
- the "when" (day and time)
- the "how much" (the maximum expected magnitude).

FALSE ALERTS (False positives).
National alert notifications affect a maximum of 5% of the time (therefore in a year at most 18 days) for Mag.> 3.7, of which for the single location the percentage is at most about 50% of that 5%.

THE RELIABILITY OF PRE-SEISMIC ALERTS.
From the experimental evidence, the alerts sent to users located within a radius of 30 km from the epicenter of an earthquake that actually occurred, recorded the following result:
- Eqs minor-ugual M4.1: reliability minor 80%
- Eqs major M4.1: reliability major-ugual 80%

The alert notification generally arrives 1 hour before the expected earthquake, to give the user time to organize the earthquake protection for himself and his family.
These provisions are not intended to replace the CORRECT PREVENTION PRACTICES for oneself and for one's family issued by the relevant government authorities.

THE SCIENTIFIC BASIS OF THE EQFORECAST APP
The scientific basis that informs the model and the App has been stated on several occasions, over time, in a lot of documentation and presentations during some scientific conferences. Texts and interventions are available on the EqForecast website: https://www.earthquakesforecast.com/.

Stefano Calandra.
 
- Terms of Use (EULA): https://www.iubenda.com/terms-and-conditions/30506520
- Privacy policy: https://www.iubenda.com/privacy-policy/16231468

## Key features

- Gravitational force analysis for earthquake prediction
- Pre-seismic sound alerts
- Location, time, and magnitude prediction
- Free version for seismic risk viewing
- 30-day free trial for premium features
- Supports Italy region

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Base + Push Alert Monthly | $2.49 | per month |
| Base + Push Annual | $26.49 | per year |
| Base + Push & SMS Monthly | $3.49 | per month |
| Pro Monthly | $4.49 | per month |
| Base + Push & SMS Annual | $32.99 | per year |
| Pro Annual | $41.99 | per year |


## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/eqforecast/id1561772135/reviews.md

### 2/5 — Errore registrazione utente

*2023-02-16, version 1.2.2*

Buongiorno. Ho provato più volte a registrare l’account appena scaricata l’app ma mi continua a visualizzare l’errore “non sei connesso ad internet”. Ho at ti ve sia connessione dati che Wi-Fi..

### 1/5 — Ma per favore!

*2022-11-14, version 1.1.6*

Dopo 15 minuti per la registrazione ti esce subito l’avviso che se vuoi vedere le previsioni devi fare l’abbonamento.
Esco subito di corsa e disinstallo la app.

### 5/5 — App eccezionale

*2022-09-20, version 1.1.6*

App di grande utilità per chi vive in luoghi sismici.

### 2/5 — Pro non funzionante

*2022-07-28, version 1.1.4*

Non funziona il tasto per abbonarsi

### 5/5 — Tutto perfetto adesso

*2022-04-28, version 1.1.0*

Aggiornamento: Non riescivo a sbloccare le funzionalità a pagamento. Adesso va tutto bene! Grazie

### 5/5 — Grazie Stefano

*2022-04-01, version 1.1.0*

Questa App è molto utile.. la definirei.. un salvavita..

### 5/5 — App molto utile da consigliare

*2022-01-19, version 1.0.8*

Veramente utile la consiglio a tutti

### 5/5 — La prima App in grado di prevedere un terremoto

*2022-01-19, version 1.0.8*

Finalmente un prodotto in grado di prevenire i danni alle persone e alle cose.
Non un allarme che avverte nel momento in cui la terra trema ma una App basata su un solido approccio matematico e in grado di prevedere a che ora ci sarà un evento sismico, e di che intensità, nelle vicinanze della nostra posizione attuale.
Uno strumento affidabile e sicuro per poter vivere serenamente e sapere quando una passeggiata all’aria aperta potrebbe essere più sicura delle mura domestiche.
Consigliata anche a chi dovesse farne un uso professionale per programmare lavori in quota o sollevamenti complessi, come pure agli sportivi che desiderino dedicarsi alla arrampicata o alla speleologia in totale sicurezza.

## Frequently asked questions about EqForecast

### What is EqForecast?

EqForecast is an application that processes correlations between gravitational forces from the moon and planets, and historical seismicity data to identify potential earthquakes in Italy. It aims to provide alerts before strong shocks occur.

### Does EqForecast have ads?

Yes, EqForecast contains advertisements. The app is free to download and use with basic features, supported by ads.

### How accurate are EqForecast's alerts?

The app states that national alert notifications affect a maximum of 5% of the time for magnitudes greater than 3.7. For a single location, this percentage is at most about 50% of that 5%.

### What subscription plans does EqForecast offer?

EqForecast offers several subscription plans including 'Base + Push Alert Monthly' for $2.49, 'Base + Push & SMS Monthly' for $3.49, and 'Pro Monthly' for $4.49. Annual plans are also available.

### Can I try EqForecast's premium features for free?

Yes, EqForecast offers a trial period of 30 days for free, allowing users to experience the functions of receiving pre-seismic sound alerts and indicating potential epicentral locations.

### What devices does EqForecast support?

EqForecast is supported on iPhone, iPad, and iPod devices. It is rated for ages 4 and up.

### How often is EqForecast updated?

The application was last updated on March 17, 2026, with the latest version being 2.0.4. The model is stated to be in continuous improvement.

### What information is included in EqForecast alerts?

Alerts from EqForecast consist of sound notifications that include the 'where' (range of 30-60 km), 'when' (day and time), and 'how much' (maximum expected magnitude) of the seismic risk.

## Version history (last 5 releases)

### 2.0.4 — 2026-03-17

- Improved push notification handling
- Magnitude-based notification filtering
- Bug fixes and performance improvements

### 2.0.1 — 2026-02-01

Multi-language support - The app is now available in Italian and English
Improved notifications - Tapping a notification takes you directly to your personal alerts
General improvements - Bug fixes and performance optimizations

### 2.0.0 — 2026-01-25

What's New in This Version:
- New Life plan
- Improved stability and performance
- Minor bug fixes

### 1.2.8 — 2023-06-21

In this new release we have:
- improved alert systems
- fixed a problem displaying the arrival time of pushes in Personal Alert History
- improved communication in case of problems paying for subscriptions via Apple

### 1.2.7 — 2023-04-08

In this new version we have modified some information content and added a button for manually updating the alerted locations (LOCAL ALERT)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-05.*