# Delta Chat vs SimpleX Chat

The clearest difference is rating: Delta Chat at 4.5 against SimpleX Chat's 4.3. On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Delta Chat holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 127 and 268 respectively. Written reviews point the same way: 63% of Delta Chat's written reviews are positive against 56% of SimpleX Chat's.

Delta Chat ships an update every 3 weeks, SimpleX Chat every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | Delta Chat | SimpleX Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (127 ratings)](https://appshunter.io/ios/app/delta-chat/id1459523234/reviews)** | [4.3 (268 ratings)](https://appshunter.io/ios/app/simplex-chat-secure-messenger/id1605771084/reviews) |
| Number of ratings | 127 | **268** |
| Positive reviews | **63.2% of reviews** | 56.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 61 MB | 193 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [merlinux](https://appshunter.io/developer/1459523233) | [SimpleX Chat](https://appshunter.io/developer/1605771086) |

## What reviewers say

### Delta Chat

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

This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.

**Highlights:** Decentralized instant messaging, Private onboarding without phone number, End-to-end encryption, Multiple chat profiles, Works on multiple devices, Self-hosted option

**Features:** Vision Pro support

**In-app purchases:** none


### SimpleX Chat

[App page](https://appshunter.io/ios/app/simplex-chat-secure-messenger/id1605771084)

This secure messaging app offers unparalleled privacy by eliminating user identifiers. Enjoy end-to-end encrypted messages, calls, and files with features like disappearing messages and incognito mode. Connect via invitation links without needing phone numbers or emails.

**Highlights:** No user identifiers, End-to-end encrypted messages, Disappearing messages, Incognito mode, Encrypted file and voice messages, Secret chat groups, Encrypted portable chat database

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🔒 End-to-end encryption and quantum-resistant security
- 🔐 No phone number or personal data required
- 👤 Anonymous profiles and multiple identities
- 🚀 Fast message delivery when working properly
- 🎯 Decentralized and open-source architecture

**What reviewers complain about**

- 🐛 Frequent app crashes and instability
- 📬 Delayed or missing notifications (20+ minutes common)
- ⌨️ Keyboard issues on iOS (freezing, unresponsive)
- 🔌 Poor connectivity and message delivery failures
- 📱 iPad version not optimized

**Reported bugs**

- App crashes on startup (v6.2 update)
- Keyboard unresponsive on iOS 26
- Messages not appearing until app is opened
- Notifications not working despite correct settings
- Chat freezing and lag on iPhone

**Requested features**

- Read receipts option
- Typing indicators
- Bot maker feature like Telegram
- Multiple image attachment with descriptions
- Better emoji reaction selection


## Frequently asked questions

### Is Delta Chat free?

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

### Is SimpleX Chat free?

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

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

Delta Chat is rated higher. Delta Chat averages 4.5 out of 5 from 127 ratings, while SimpleX Chat averages 4.3 from 268 ratings.

### Do Delta Chat or SimpleX Chat have ads?

Neither Delta Chat nor SimpleX Chat shows ads.

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

Delta Chat ships an update every 3 weeks, and SimpleX Chat every 2 weeks. Most recently, Delta Chat was updated on October 14, 2026 and SimpleX Chat on October 14, 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.*