# New SMDC vs Duo Authenticator

The clearest difference is in-app purchases: New SMDC at none against Duo Authenticator's 3. New SMDC also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Duo Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days. New SMDC asks for nothing beyond the download.

New SMDC ships an update every 2 months, Duo Authenticator monthly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | New SMDC | Duo Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (24 ratings)](https://appshunter.io/ios/app/duo-authenticator/id1665454984/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 110 MB | 60 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Julian](https://appshunter.io/developer/1529380744) | [Petr Polasek](https://appshunter.io/developer/1613323784) |

## What reviewers say

### New SMDC

[App page](https://appshunter.io/ios/app/new-smdc/id1602644639)

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

**In-app purchases:** none


### Duo Authenticator

[App page](https://appshunter.io/ios/app/duo-authenticator/id1665454984)

Enhance your online security with this multi-factor authentication app. It provides an extra layer of protection for your accounts by generating time-sensitive codes, even when offline. Secure your sensitive information with ease and peace of mind.

**Highlights:** Quick and easy setup, Wide service compatibility, Time-sensitive security codes, Offline code generation, End-to-end encryption, Security code protection

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Week | $3.99 | per 7 days |
| Premium 1 Month | $9.99 | per month |
| Premium 1 Year | $29.99 | per year |


## Frequently asked questions

### Is New SMDC free?

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

### Is Duo Authenticator free?

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

### Do New SMDC or Duo Authenticator have ads?

Duo Authenticator shows ads; New SMDC does not.

### Which is updated more often, New SMDC or Duo Authenticator?

New SMDC ships an update every 2 months, and Duo Authenticator monthly. Most recently, New SMDC was updated on October 7, 2026 and Duo Authenticator on October 9, 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.*