# Leb Alerts vs GEO Sismos

The clearest difference is in-app purchases: Leb Alerts at none against GEO Sismos's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GEO Sismos sells 2 in-app purchases, starting at $1.99 per month. Leb Alerts asks for nothing beyond the download.

Leb Alerts ships an update every 4 weeks, GEO Sismos every 6 weeks. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Leb Alerts | GEO Sismos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Size | 50 MB | 32 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [CNRS-L](https://appshunter.io/developer/1742141003) | [Jiyan Kilickap](https://appshunter.io/developer/6802060994) |

## What reviewers say

### Leb Alerts

[App page](https://appshunter.io/ios/app/leb-alerts/id6499011579)

**In-app purchases:** none


### GEO Sismos

[App page](https://appshunter.io/ios/app/geo-sismos/id6802060992)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GEO Sismos PRO Monthly | $1.99 | per month |
| GEO Sismos Pro Annual | $17.99 | per year |


## Frequently asked questions

### Is Leb Alerts free?

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

### Is GEO Sismos free?

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

### Do Leb Alerts or GEO Sismos have ads?

Neither Leb Alerts nor GEO Sismos shows ads.

### Which is updated more often, Leb Alerts or GEO Sismos?

Leb Alerts ships an update every 4 weeks, and GEO Sismos every 6 weeks. Most recently, Leb Alerts was updated on November 8, 2026 and GEO Sismos on November 6, 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.*