# Esker vs Offgrid Tower Security

The clearest difference is update cadence: Offgrid Tower Security at monthly against Esker's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Esker ships an update every 10 months, Offgrid Tower Security monthly. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Esker | Offgrid Tower Security |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 46 MB | 48 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop 4 Solutions](https://appshunter.io/developer/1418729643) | [Tower Security](https://appshunter.io/developer/1825885565) |

## What reviewers say

### Esker

[App page](https://appshunter.io/ios/app/esker/id6738931406)

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

**In-app purchases:** none


### Offgrid Tower Security

[App page](https://appshunter.io/ios/app/offgrid-tower-security/id6748463303)

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

**In-app purchases:** none


## Frequently asked questions

### Is Esker free?

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

### Is Offgrid Tower Security free?

Offgrid Tower Security is free to download, with no in-app purchases.

### Do Esker or Offgrid Tower Security have ads?

Neither Esker nor Offgrid Tower Security shows ads.

### Which is updated more often, Esker or Offgrid Tower Security?

Esker ships an update every 10 months, and Offgrid Tower Security monthly. Most recently, Esker was updated on September 23, 2026 and Offgrid Tower Security on September 11, 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.*