# Seismometer+ vs AlertaTelegram

The clearest difference is in-app purchases: Seismometer+ at none against AlertaTelegram's 2. AlertaTelegram's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. AlertaTelegram sells 2 in-app purchases, starting at $2.99 per month. Seismometer+ asks for nothing beyond the download.

## The numbers

| Metric | Seismometer+ | AlertaTelegram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (82 ratings)](https://appshunter.io/ios/app/seismometer-plus/id6739265160/reviews)** | — |
| Number of ratings | **82** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 3 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [IMMOACTIVAT I ASSOCIATS SL](https://appshunter.io/developer/1800941159) |

## What reviewers say

### Seismometer+

[App page](https://appshunter.io/ios/app/seismometer-plus/id6739265160)

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

**Highlights:** Real-time X, Y, Z axis acceleration graphs, Cumulative vibration intensity analysis, Adjustable long-term data recording intervals, Dark mode display, Customizable graph update rates and sensitivity

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

**In-app purchases:** none


### AlertaTelegram

[App page](https://appshunter.io/ios/app/alertatelegram/id6745782674)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan Monthly | $2.99 | per month |
| Annual Plan | $17.99 | per year |


## Frequently asked questions

### Is Seismometer+ free?

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

### Is AlertaTelegram free?

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

### Do Seismometer+ or AlertaTelegram have ads?

Seismometer+ shows ads; AlertaTelegram does not.

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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.*