# Isosec Authenticator vs Xigma Diary

The clearest difference is update cadence: Isosec Authenticator at every 4 months against Xigma Diary's every 22 months. Xigma Diary's advantage is iOS requirement (13.4 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Isosec Authenticator ships an update every 4 months, Xigma Diary every 22 months. Both last shipped on September 16, 2026.

## The numbers

| Metric | Isosec Authenticator | Xigma Diary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 22 months |
| Monetization | Free | — |
| Size | 9 MB | 24 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Isosec Ltd](https://appshunter.io/developer/932317463) | [Mednetix Limited](https://appshunter.io/developer/1560486564) |

## What reviewers say

### Isosec Authenticator

[App page](https://appshunter.io/ios/app/isosec-authenticator/id1229109210)

This app provides secure and convenient access to NHS clinical systems using a cloud-based virtual smartcard. It offers faster authentication, simplified logins, and two-factor security for e-prescribing and other critical healthcare applications.

**Highlights:** NHS Spine and Windows AD authentication, Faster, simpler, and safer access, Two-factor authentication via QR code or push, Digital signature for e-prescribing, Cloud-based and device-agnostic, Easy self-service portal

**Features:** macOS Compatibility

**In-app purchases:** none


### Xigma Diary

[App page](https://appshunter.io/ios/app/xigma-diary/id1560486562)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Isosec Authenticator free?

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

### Is Xigma Diary free?

Xigma Diary is free to download, with no in-app purchases.

### Do Isosec Authenticator or Xigma Diary have ads?

Neither Isosec Authenticator nor Xigma Diary shows ads.

### Which is updated more often, Isosec Authenticator or Xigma Diary?

Isosec Authenticator ships an update every 4 months, and Xigma Diary every 22 months. Most recently, Isosec Authenticator was updated on September 16, 2026 and Xigma Diary 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.*