# Authenticator* vs TechPDF

The clearest difference is iOS requirement: Authenticator* at 14.0 against TechPDF's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator* sells 4 in-app purchases, starting at $4.99 per 7 days and TechPDF sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator* ships an update every 9 days, TechPDF every 2 weeks. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Authenticator* | TechPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/authenticator/id6748315527/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 73 MB | 9 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arctec](https://appshunter.io/developer/1571513981) | [Alaaeddine Alaaeddine M. A. Kheir](https://appshunter.io/developer/6793910032) |

## What reviewers say

### Authenticator*

[App page](https://appshunter.io/ios/app/authenticator/id6748315527)

This app generates secure two-factor authentication codes for your online accounts. It offers end-to-end encryption, biometric locking, and seamless iCloud backup. Access codes instantly via widgets or Apple Watch, even offline.

**Highlights:** Secure 2FA/MFA code generation, End-to-end encryption, Face ID & PIN lock, iCloud sync & backup, Apple Watch & Home Screen widgets, Offline code generation, Unlimited account support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $4.99 | per 7 days |
| Weekly PRO | $4.99 | per 7 days |
| Yearly PRO | $29.99 | per year |
| Lifetime PRO Access | $39.99 | one-time |


### TechPDF

[App page](https://appshunter.io/ios/app/techpdf-edit-and-sign-pdfs/id6793910030)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $0.99 | per 7 days |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $4.99 | per year |


## Frequently asked questions

### Is Authenticator* free?

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

### Is TechPDF free?

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

### Do Authenticator* or TechPDF have ads?

Neither Authenticator* nor TechPDF shows ads.

### Which is updated more often, Authenticator* or TechPDF?

Authenticator* ships an update every 9 days, and TechPDF every 2 weeks. Most recently, Authenticator* was updated on October 6, 2026 and TechPDF on October 25, 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.*