# Optix C2 vs SecretShield

The clearest difference is in-app purchases: Optix C2 at none against SecretShield's 4. Optix C2 also leads on iOS requirement (11.0 vs 17.0). SecretShield's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. SecretShield sells 4 in-app purchases, starting at $19.99 per month. Optix C2 asks for nothing beyond the download.

Optix C2 ships an update every 2 months, SecretShield every 3 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Optix C2 | SecretShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 264 MB | 38 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitehog](https://appshunter.io/developer/1636262722) | [Secret Shield Inc.](https://appshunter.io/developer/1765046506) |

## What reviewers say

### Optix C2

[App page](https://appshunter.io/ios/app/optix-c2/id6479258403)

**Features:** macOS Compatibility

**In-app purchases:** none


### SecretShield

[App page](https://appshunter.io/ios/app/secretshield/id6670149348)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $19.99 | per month |
| Inheritance | $49.99 | per month |
| Basic | $199.00 | per year |
| Inheritance | $499.00 | per year |


## Frequently asked questions

### Is Optix C2 free?

Optix C2 is free to download, with no in-app purchases.

### Is SecretShield free?

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

### Do Optix C2 or SecretShield have ads?

Neither Optix C2 nor SecretShield shows ads.

### Which is updated more often, Optix C2 or SecretShield?

Optix C2 ships an update every 2 months, and SecretShield every 3 weeks. Most recently, Optix C2 was updated on October 7, 2026 and SecretShield on October 4, 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.*