# Bigchat vs Diom

The clearest difference is review sentiment: Bigchat at 100% against Diom's 0%. Diom's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

Bigchat ships an update weekly, Diom fortnightly. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bigchat | Diom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/diom/id6752373994/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Ad-supported | **Free** |
| Size | 121 MB | 93 MB |
| Requires iOS | 18.6 | **15** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [META_GROUP](https://appshunter.io/developer/1821961069) | [Stanislav Zakharov](https://appshunter.io/developer/1839150276) |

## What reviewers say

### Bigchat

[App page](https://appshunter.io/ios/app/bigchat/id6747599552)

A new social network for communication and content sharing in Russia. Create and share short videos, interactive stories, and longer publications. Discover new products and services while building your personal brand in a safe community.

**Highlights:** Create and share short videos (Reels), Post temporary interactive stories (Stories), Share longer content with publications, Integrates with small businesses and brands, Focuses on self-expression and community, Supports content creation and personal branding

**In-app purchases:** none


### Diom

[App page](https://appshunter.io/ios/app/diom/id6752373994)

A secure and fast communication app for creating and consuming content. It offers a messenger, author channels, communities, and dual content feeds. Future updates will include monetization tools, enhanced messaging, and integrated lifestyle services.

**Highlights:** Secure messaging, Author channels for content creation, Community forums, Dual content feeds (Drops & Stream), Support for various content formats, Future monetization tools

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

**In-app purchases:** none


## Frequently asked questions

### Is Bigchat free?

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

### Is Diom free?

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

### Do Bigchat or Diom have ads?

Bigchat shows ads; Diom does not.

### Which is updated more often, Bigchat or Diom?

Bigchat ships an update weekly, and Diom fortnightly. Most recently, Bigchat was updated on October 4, 2026 and Diom on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*