# Knowio vs Offgrid Tower Security

Knowio and Offgrid Tower Security are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Knowio ships an update every 2 months, Offgrid Tower Security monthly. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Knowio | Offgrid Tower Security |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 48 MB | 48 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inniovate Ltd](https://appshunter.io/developer/1725974365) | [Tower Security](https://appshunter.io/developer/1825885565) |

## What reviewers say

### Knowio

[App page](https://appshunter.io/ios/app/knowio/id6476141189)

**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 Knowio free?

Knowio 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 Knowio or Offgrid Tower Security have ads?

Neither Knowio nor Offgrid Tower Security shows ads.

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

Knowio ships an update every 2 months, and Offgrid Tower Security monthly. Most recently, Knowio was updated on September 9, 2026 and Offgrid Tower Security on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*