# Delta Chat vs Klak

Delta Chat and Klak both sit at 4.4 stars, but that hides the real split: 100% of Klak's written reviews are positive against 63% of Delta Chat's. Klak also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (12.1 vs 15.6). Delta Chat's advantage is ratings volume (129 vs 6). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.4 for Delta Chat against 4.3 for Klak. That said, the two scores are not equally well evidenced: Delta Chat has 129 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 63% of Delta Chat's written reviews are positive against 100% of Klak's.

Delta Chat ships an update every 3 weeks, Klak weekly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Delta Chat | Klak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (129 ratings)](https://appshunter.io/ios/app/delta-chat/id1459523234/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/klak-shared-wifi-group-chat/id1476653520/reviews) |
| Number of ratings | **129** | 6 |
| Positive reviews | 63.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 60 MB | 70 MB |
| Requires iOS | 15.6 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [merlinux](https://appshunter.io/developer/1459523233) | [Bruce Bolton](https://appshunter.io/developer/1476364624) |

## 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


### Klak

[App page](https://appshunter.io/ios/app/klak-shared-wifi-group-chat/id1476653520)

Connect to any WiFi network and instantly join a group chat with others in the same physical location. Share advice, deals, or simply say hello to people nearby.

**Highlights:** Connect to WiFi for group chat, Localized conversations, Share advice and deals, Meet people nearby, Ad-free experience

**In-app purchases:** none


## Frequently asked questions

### Is Delta Chat free?

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

### Is Klak free?

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

### Which has better reviews, Delta Chat or Klak?

Delta Chat is rated higher. Delta Chat averages 4.4 out of 5 from 129 ratings, while Klak averages 4.3 from 6 ratings.

### Do Delta Chat or Klak have ads?

Neither Delta Chat nor Klak shows ads.

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

Delta Chat ships an update every 3 weeks, and Klak weekly. Most recently, Delta Chat was updated on October 30, 2026 and Klak 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.*