# ISEC7 MAIL vs Thetis Tools

The clearest difference is in-app purchases: Thetis Tools at none against ISEC7 MAIL's 1. Thetis Tools also leads on iOS requirement (14.0 vs 16.0). ISEC7 MAIL's advantage is update cadence (monthly vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. ISEC7 MAIL sells 1 in-app purchase, starting at $32.99 per year. Thetis Tools asks for nothing beyond the download.

ISEC7 MAIL ships an update monthly, Thetis Tools every 7 months. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ISEC7 MAIL | Thetis Tools |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Freemium | — |
| Size | 74 MB | 50 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ISEC7 Group](https://appshunter.io/developer/466418066) | [Thetis srl](https://appshunter.io/developer/397584184) |

## What reviewers say

### ISEC7 MAIL

[App page](https://appshunter.io/ios/app/isec7-mail/id1045017598)

Securely access and manage Microsoft Exchange and Office 365 email, contacts, and calendars from your mobile device. Offers features like mailbox delegation, public folder integration, and S/MIME encryption for sensitive information.

**Highlights:** Secure access to Exchange/Office 365, Contact, calendar, task, and note management, Mailbox delegation, Public folder integration, Certificate-based authentication, S/MIME encrypted and signed emails

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $32.99 | per year |


### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISEC7 MAIL free?

ISEC7 MAIL is free to download, with in-app purchases available.

### Is Thetis Tools free?

Thetis Tools is free to download, with no in-app purchases.

### Do ISEC7 MAIL or Thetis Tools have ads?

Neither ISEC7 MAIL nor Thetis Tools shows ads.

### Which is updated more often, ISEC7 MAIL or Thetis Tools?

ISEC7 MAIL ships an update monthly, and Thetis Tools every 7 months. Most recently, ISEC7 MAIL was updated on September 15, 2026 and Thetis Tools on September 10, 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.*