# CGIUKI Conference App vs Letro

The clearest difference is update cadence: Letro at every 2 weeks against CGIUKI Conference App's every 2 months. CGIUKI Conference App's advantage is iOS requirement (16.6 vs 18.5). 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.

CGIUKI Conference App ships an update every 2 months, Letro every 2 weeks. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CGIUKI Conference App | Letro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/letro-secure-communication/id6758909629/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 53 MB | 340 MB |
| Requires iOS | **16.6** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [ICSA Governance Events](https://appshunter.io/developer/1529067598) | [Letro](https://appshunter.io/developer/1875687658) |

## What reviewers say

### CGIUKI Conference App

[App page](https://appshunter.io/ios/app/cgiuki-conference-app/id1630436921)

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

**In-app purchases:** none


### Letro

[App page](https://appshunter.io/ios/app/letro-secure-communication/id6758909629)

This secure communication platform offers end-to-end encrypted messaging, file sharing, and document exchange for enterprises. It provides a tamper-proof, blockchain-verified record of all communications, designed to replace email and chat with enhanced security and compliance features.

**Highlights:** End-to-end encryption, Blockchain-verified records, Spam and phishing proof, Role-based permissions, Automated approval chains, Decentralized and federated architecture, Offline communication capability

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

**In-app purchases:** none


## Frequently asked questions

### Is CGIUKI Conference App free?

CGIUKI Conference App is free to download, with no in-app purchases.

### Is Letro free?

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

### Do CGIUKI Conference App or Letro have ads?

Neither CGIUKI Conference App nor Letro shows ads.

### Which is updated more often, CGIUKI Conference App or Letro?

CGIUKI Conference App ships an update every 2 months, and Letro every 2 weeks. Most recently, CGIUKI Conference App was updated on October 9, 2026 and Letro on October 24, 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.*