# Tuta Mail vs Chronos Authenticator

The clearest difference is review sentiment: Chronos Authenticator at 100% against Tuta Mail's 65%. Chronos Authenticator also leads on in-app purchases (none vs 4) and rating (5.0 vs 4.7). Tuta Mail's advantage is ratings volume (3.7K vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tuta Mail sells 4 in-app purchases, starting at $3.99 per month. Chronos Authenticator asks for nothing beyond the download.

Chronos Authenticator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Tuta Mail has 3.7K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 65% of Tuta Mail's written reviews are positive against 100% of Chronos Authenticator's.

Tuta Mail ships an update weekly, Chronos Authenticator every 6 days. The most recent releases landed on October 3, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Tuta Mail | Chronos Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3.7K ratings)](https://appshunter.io/ios/app/tuta-mail-secure-email/id922429609/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chronos-authenticator/id6503929490/reviews)** |
| Number of ratings | **3.7K** | 3 |
| Positive reviews | 64.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | **Free** |
| Size | 84 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tutao GmbH](https://appshunter.io/developer/922429608) | [Joel-David Wong](https://appshunter.io/developer/1750409239) |

## What reviewers say

### Tuta Mail

[App page](https://appshunter.io/ios/app/tuta-mail-secure-email/id922429609)

Secure your communications with an encrypted email service offering end-to-end encryption for emails and contacts. Enjoy features like anonymous registration, an ad-free experience, and a free encrypted calendar. Protect your privacy with a service developed and hosted in Germany.

**Highlights:** End-to-end encryption, Anonymous registration, Ad-free experience, Free encrypted calendar, Quantum-safe encryption, Open source code

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Revolutionary (Monthly) | $3.99 | per month |
| Legend (Monthly) | $9.99 | per month |
| Revolutionary (Yearly) | $39.99 | per year |
| Legend (Yearly) | $99.99 | per year |

**What reviewers like**

- 🔒 Secure email service
- 💡 Encrypted subject lines and contacts
- 👍 Clean and simple interface
- 🚀 Reliable and fast
- 🔒 End-to-end encryption

**What reviewers complain about**

- 🐛 Occasional app crashes
- 🐛 Inconsistent email delivery
- 🐛 Unreliable search functionality
- 🐛 Inability to export emails
- 🐛 Frequent app disconnections

**Reported bugs**

- Login credentials not working
- Accounts being locked or deleted unexpectedly
- Inability to restore deleted accounts
- Syncing issues between devices

**Requested features**

- Pinch-to-zoom functionality
- Improved email organization tools (labels, folders, etc.)
- Offline access mode
- Ability to set custom notification sounds
- Separate app for calendar and contacts


### Chronos Authenticator

[App page](https://appshunter.io/ios/app/chronos-authenticator/id6503929490)

This open-source app provides secure two-factor authentication using time-based and counter-based methods. It offers end-to-end encryption for token data and optional iCloud backup and sync for convenience. Easily import and export your authentication tokens.

**Highlights:** Open-source, End-to-end encrypted token storage, Optional iCloud backup and sync, Token export and import, Anonymous usage (no account required)

**In-app purchases:** none


## Frequently asked questions

### Is Tuta Mail free?

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

### Is Chronos Authenticator free?

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

### Which has better reviews, Tuta Mail or Chronos Authenticator?

Chronos Authenticator is rated higher. Tuta Mail averages 4.7 out of 5 from 3.7K ratings, while Chronos Authenticator averages 5.0 from 3 ratings.

### Do Tuta Mail or Chronos Authenticator have ads?

Neither Tuta Mail nor Chronos Authenticator shows ads.

### Which is updated more often, Tuta Mail or Chronos Authenticator?

Tuta Mail ships an update weekly, and Chronos Authenticator every 6 days. Most recently, Tuta Mail was updated on October 3, 2026 and Chronos Authenticator on September 16, 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.*