# ClearSign vs Secure Authenticator

The clearest difference is ads: Secure Authenticator at none against ClearSign's shown. Secure Authenticator also leads on update cadence (every 2 days vs every 9 days). ClearSign's advantage is rating (5.0 vs 4.6). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. ClearSign sells 8 in-app purchases, starting at $0.99 per 7 days and Secure Authenticator sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ClearSign holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 4 and 8 respectively.

ClearSign ships an update every 9 days, Secure Authenticator every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | ClearSign | Secure Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/clearsign-pdf-scanner-and-sign/id6738962277/reviews)** | [4.6 (8 ratings)](https://appshunter.io/ios/app/secure-authenticator-otp-mfa/id6740487245/reviews) |
| Number of ratings | 4 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 33 MB | 92 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Elevate Mobile Group LLC](https://appshunter.io/developer/1783158161) | [Bagrat Nozadze](https://appshunter.io/developer/1790202431) |

## What reviewers say

### ClearSign

[App page](https://appshunter.io/ios/app/clearsign-pdf-scanner-and-sign/id6738962277)

Transform your device into a powerful PDF scanner and editor. Easily fill out forms, create digital signatures from your handwriting, and manage important documents on the go. Streamline your paperwork with scanning, signing, and editing tools in one place.

**Highlights:** PDF scanning with automatic edge detection, Create digital signatures from handwriting, Fill and sign PDF documents, Add text, dates, and stamps, Edit PDF pages and add annotations, Organize and manage documents

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Subscription | $0.99 | per 7 days |
| 1 Week Subscription | $1.99 | per 7 days |
| 1 Month Subscription | $2.99 | per month |
| 1 Month Subscription | $2.99 | per month |
| 1 Year Subscription | $24.99 | per year |
| 1 Year Subscription | $29.99 | per year |
| Lifetime Purchase | $49.99 | one-time |
| Lifetime Purchase | $79.99 | one-time |


### Secure Authenticator

[App page](https://appshunter.io/ios/app/secure-authenticator-otp-mfa/id6740487245)

This app provides robust two-factor authentication (2FA) to safeguard your online accounts and sensitive data from cyber threats. It offers a straightforward way to manage authentication tokens and secure your logins with ease.

**Highlights:** Generate 2FA tokens, Manage authentication tokens, Secure login protection, Encrypted backups, Sync tokens across devices, Password management

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Monthly Premium | $19.99 | per month |
| Annual Premium | $49.99 | per year |


## Frequently asked questions

### Is ClearSign free?

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

### Is Secure Authenticator free?

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

### Which has better reviews, ClearSign or Secure Authenticator?

ClearSign is rated higher. ClearSign averages 5.0 out of 5 from 4 ratings, while Secure Authenticator averages 4.6 from 8 ratings.

### Do ClearSign or Secure Authenticator have ads?

ClearSign shows ads; Secure Authenticator does not.

### Which is updated more often, ClearSign or Secure Authenticator?

ClearSign ships an update every 9 days, and Secure Authenticator every 2 days. Most recently, ClearSign was updated on October 24, 2026 and Secure Authenticator on October 24, 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.*