# SmartSign vs OCAS Authenticator

The clearest difference is update cadence: SmartSign at every 4 weeks against OCAS Authenticator's every 5 months. SmartSign also leads on iOS requirement (9.0 vs 15.6). 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.

SmartSign ships an update every 4 weeks, OCAS Authenticator every 5 months. The most recent releases landed on September 25, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SmartSign | OCAS Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 months |
| Size | 1 MB | 31 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Microcosm Ltd](https://appshunter.io/developer/781507477) | [NetKnights GmbH](https://appshunter.io/developer/1445401030) |

## What reviewers say

### SmartSign

[App page](https://appshunter.io/ios/app/smartsign/id781507474)

**Features:** macOS Compatibility

**In-app purchases:** none


### OCAS Authenticator

[App page](https://appshunter.io/ios/app/ocas-authenticator/id6444557674)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartSign free?

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

### Is OCAS Authenticator free?

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

### Do SmartSign or OCAS Authenticator have ads?

Neither SmartSign nor OCAS Authenticator shows ads.

### Which is updated more often, SmartSign or OCAS Authenticator?

SmartSign ships an update every 4 weeks, and OCAS Authenticator every 5 months. Most recently, SmartSign was updated on September 25, 2026 and OCAS Authenticator on September 26, 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.*