# EchoLock vs SeismicityAlert

The clearest difference is in-app purchases: SeismicityAlert at none against EchoLock's 1. SeismicityAlert also leads on ratings volume (3 vs 1). EchoLock's advantage is update cadence (every 5 days vs fortnightly). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. EchoLock sells 1 one-off in-app purchase. SeismicityAlert asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for EchoLock against 5.0 for SeismicityAlert. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

EchoLock ships an update every 5 days, SeismicityAlert fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | EchoLock | SeismicityAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/echolock-lock-reminder/id6758783997/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/seismicityalert/id6758901471/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 39 MB | 58 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Rizzo](https://appshunter.io/developer/1874980406) | [SensorEra Inc](https://appshunter.io/developer/1873603743) |

## What reviewers say

### EchoLock

[App page](https://appshunter.io/ios/app/echolock-lock-reminder/id6758783997)

This app provides timely reminders for essential lock and safety checks, helping you leave home with confidence. Its simple, distraction-free design focuses on building better habits around everyday safety without unnecessary complexity.

**Highlights:** Timely lock and safety reminders, Simple and distraction-free design, Builds better safety habits, Lightweight and focused, Easy to use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support EchoLock | $1.99 | one-time |


### SeismicityAlert

[App page](https://appshunter.io/ios/app/seismicityalert/id6758901471)

This application provides enterprise users with summarized seismic event notifications from industrial monitoring projects. It offers a map-based visualization of earthquake events, including magnitude, time, and location details. Access is secured through a login for authorized business users.

**Highlights:** Seismic event summaries, Event magnitude, time, and location overview, Map-based visualization, Secure login for authorized users

**In-app purchases:** none


## Frequently asked questions

### Is EchoLock free?

EchoLock is free to download, with in-app purchases available.

### Is SeismicityAlert free?

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

### Which has better reviews, EchoLock or SeismicityAlert?

EchoLock and SeismicityAlert are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do EchoLock or SeismicityAlert have ads?

Neither EchoLock nor SeismicityAlert shows ads.

### Which is updated more often, EchoLock or SeismicityAlert?

EchoLock ships an update every 5 days, and SeismicityAlert fortnightly. Most recently, EchoLock was updated on October 31, 2026 and SeismicityAlert on October 31, 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.*