# Relay Secure Messenger vs Katt messenger

The clearest difference is in-app purchases: Relay Secure Messenger at none against Katt messenger's 6. Katt messenger's advantage is update cadence (weekly vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Katt messenger sells 6 in-app purchases, starting at $4.99 per month. Relay Secure Messenger asks for nothing beyond the download.

Relay Secure Messenger ships an update every 3 weeks, Katt messenger weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Relay Secure Messenger | Katt messenger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/relay-secure-messenger/id6753321063/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 33 MB | 114 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Antonio Lambert](https://appshunter.io/developer/1769139666) | [Andrei Baburin](https://appshunter.io/developer/1723846806) |

## What reviewers say

### Relay Secure Messenger

[App page](https://appshunter.io/ios/app/relay-secure-messenger/id6753321063)

This app offers a unique voice communication experience by transcribing speech on your device, encrypting it as text, and reconstructing it in your voice privately in real-time. It ensures conversations remain yours by never transmitting raw audio over the network.

**Highlights:** On-device speech transcription, End-to-end encrypted text transmission, Real-time voice reconstruction, No raw audio transmission, Private conversations, Ad-free experience

**Features:** macOS Compatibility

**In-app purchases:** none


### Katt messenger

[App page](https://appshunter.io/ios/app/katt-messenger/id6801121216)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $4.99 | per month |
| Plus | $9.99 | per month |
| Pro | $19.99 | per month |
| 30 tokens | $1.99 | one-time |
| 80 tokens | $4.99 | one-time |
| 180 tokens | $9.99 | one-time |


## Frequently asked questions

### Is Relay Secure Messenger free?

Relay Secure Messenger is free to download, with no in-app purchases.

### Is Katt messenger free?

Katt messenger is free to download, with in-app purchases available.

### Do Relay Secure Messenger or Katt messenger have ads?

Neither Relay Secure Messenger nor Katt messenger shows ads.

### Which is updated more often, Relay Secure Messenger or Katt messenger?

Relay Secure Messenger ships an update every 3 weeks, and Katt messenger weekly. Most recently, Relay Secure Messenger was updated on October 30, 2026 and Katt messenger on October 31, 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.*