# Tuta Mail vs Diode Collab

The clearest difference is in-app purchases: Diode Collab at none against Tuta Mail's 4. Tuta Mail's advantage is update cadence (weekly vs every 2 months) and ratings volume (3.7K vs 8). On price, review sentiment, 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. Diode Collab asks for nothing beyond the download.

Tuta Mail holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Tuta Mail has 3.7K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 65% of Tuta Mail's written reviews are positive against 67% of Diode Collab's, so the app with the better star average is not the one people write more warmly about.

Tuta Mail ships an update weekly, Diode Collab every 2 months. The most recent releases landed on September 25, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Tuta Mail | Diode Collab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.7K ratings)](https://appshunter.io/ios/app/tuta-mail-secure-email/id922429609/reviews)** | [4.4 (8 ratings)](https://appshunter.io/ios/app/diode-collab/id1605222443/reviews) |
| Number of ratings | **3.7K** | 8 |
| Positive reviews | 65.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 84 MB | 37 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tutao GmbH](https://appshunter.io/developer/922429608) | [Diode](https://appshunter.io/developer/1605222445) |

## 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


### Diode Collab

[App page](https://appshunter.io/ios/app/diode-collab/id1605222443)

This app offers a secure, self-managed alternative to cloud storage and team communication tools. It utilizes a peer-to-peer network, ensuring your data remains under your control without relying on third-party servers. Share notes, messages, and files with groups privately and securely.

**Highlights:** Self-managed secure data storage, Peer-to-peer network, Private message sharing, Secure file sharing, Group collaboration

**In-app purchases:** none


## Frequently asked questions

### Is Tuta Mail free?

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

### Is Diode Collab free?

Diode Collab is free to download, with no in-app purchases.

### Which has better reviews, Tuta Mail or Diode Collab?

Tuta Mail is rated higher. Tuta Mail averages 4.7 out of 5 from 3.7K ratings, while Diode Collab averages 4.4 from 8 ratings.

### Do Tuta Mail or Diode Collab have ads?

Neither Tuta Mail nor Diode Collab shows ads.

### Which is updated more often, Tuta Mail or Diode Collab?

Tuta Mail ships an update weekly, and Diode Collab every 2 months. Most recently, Tuta Mail was updated on September 25, 2026 and Diode Collab on June 3, 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.*