# Delta Chat vs K

The clearest difference is in-app purchases: Delta Chat at none against K's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. K sells 1 in-app purchase, starting at $0.99 per month. Delta Chat asks for nothing beyond the download.

Delta Chat ships an update every 3 weeks, K fortnightly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Delta Chat | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (129 ratings)](https://appshunter.io/ios/app/delta-chat/id1459523234/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 60 MB | 142 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [merlinux](https://appshunter.io/developer/1459523233) | [Kulucky Rangers Inc.](https://appshunter.io/developer/1594808743) |

## What reviewers say

### Delta Chat

[App page](https://appshunter.io/ios/app/delta-chat/id1459523234)

A decentralized instant messenger prioritizing privacy and ease of use. It allows secure communication with friends, family, and groups without requiring personal data like phone numbers. The app is flexible, reliable in challenging network conditions, and built on open-source principles.

**Highlights:** Private instant onboarding, No phone number required, Mutual consent for messaging, Multiple chat profiles, Works in bad network conditions, End-to-end encryption, Run with own email/server

**Features:** Vision Pro support

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-insight/id6739238066)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $0.99 | per month |


## Frequently asked questions

### Is Delta Chat free?

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

### Is K free?

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

### Do Delta Chat or K have ads?

Neither Delta Chat nor K shows ads.

### Which is updated more often, Delta Chat or K?

Delta Chat ships an update every 3 weeks, and K fortnightly. Most recently, Delta Chat was updated on November 6, 2026 and K on October 30, 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.*