# mail.de Authenticator vs Mileage Log Buddy

The clearest difference is in-app purchases: mail.de Authenticator at none against Mileage Log Buddy's 2. mail.de Authenticator also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.6). Mileage Log Buddy's advantage is update cadence (every 3 weeks vs every 17 months). On price and ads there is nothing between them.

Both are free to download. Mileage Log Buddy sells 2 one-off in-app purchases. mail.de Authenticator asks for nothing beyond the download.

mail.de Authenticator ships an update every 17 months, Mileage Log Buddy every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | mail.de Authenticator | Mileage Log Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 10 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [mail.de GmbH](https://appshunter.io/developer/567429768) | [Jan Erik Thelen](https://appshunter.io/developer/1885020900) |

## What reviewers say

### mail.de Authenticator

[App page](https://appshunter.io/ios/app/mailde-authenticator/id567429765)

Enhance your email account security with this app, which generates one-time codes for two-factor authentication. It requires initial setup within your email account settings to activate.

**Highlights:** Two-factor authentication, Enhanced email security, Generates one-time codes, Requires account setup

**Features:** Vision Pro support

**In-app purchases:** none


### Mileage Log Buddy

[App page](https://appshunter.io/ios/app/mileage-log-buddy/id6793839551)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-Day Full Access | Free | one-time |
| Full Mileage Log | $3.99 | one-time |


## Frequently asked questions

### Is mail.de Authenticator free?

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

### Is Mileage Log Buddy free?

Mileage Log Buddy is free to download, with in-app purchases available.

### Do mail.de Authenticator or Mileage Log Buddy have ads?

Neither mail.de Authenticator nor Mileage Log Buddy shows ads.

### Which is updated more often, mail.de Authenticator or Mileage Log Buddy?

mail.de Authenticator ships an update every 17 months, and Mileage Log Buddy every 3 weeks. Most recently, mail.de Authenticator was updated on October 29, 2026 and Mileage Log Buddy on October 31, 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.*