# Bigant5 vs Mattermost

The clearest difference is update cadence: Mattermost at every 9 days against Bigant5's every 3 months. Bigant5's advantage is review sentiment (50% vs 38%) and iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Bigant5 ships an update every 3 months, Mattermost every 9 days. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Bigant5 | Mattermost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5.7K ratings)](https://appshunter.io/ios/app/mattermost/id1257222717/reviews)** |
| Number of ratings | — | **5.7K** |
| Positive reviews | **50.0% of reviews** | 37.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 82 MB | 94 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [辉 欧阳](https://appshunter.io/developer/6790439684) | [Mattermost, Inc.](https://appshunter.io/developer/654282837) |

## What reviewers say

### Bigant5

[App page](https://appshunter.io/ios/app/bigant5/id1148556196)

A secure, on-premise instant messaging system designed for businesses. It ensures all communication is private and traceable, with contact lists exclusively for colleagues. This tool helps boost office productivity for companies of any size.

**Highlights:** On-premise server administration, Secure and traceable conversations, Colleague-only contact lists, LDAP/AD compatibility, Boosts office productivity

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

**In-app purchases:** none


### Mattermost

[App page](https://appshunter.io/ios/app/mattermost/id1257222717)

This platform enables secure messaging, file sharing, and workflow automation for critical industries. It offers voice calls, project management, and enterprise mobility management for enhanced collaboration and data control.

**Highlights:** Secure messaging, file, and link sharing, 1:1 and group voice calls, Workflow automation with Playbook, Enterprise Mobility Management support, Private mobility with ID-only push notifications

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and responsive
- 🔒 Secure self-hosted solution
- 👍 Great Slack alternative
- 💡 Customizable and extensible
- 🧲 Integrates well with other tools

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔑 Frustrating login/authentication issues
- 🔔 Inconsistent or missing notifications
- 🖼️ Trouble with image/file uploads
- 🕰️ Slow performance and lag

**Reported bugs**

- Crashes on startup
- Unread message indicators not working
- Keyboard issues on iPad/desktop
- Compatibility problems with iOS 17+
- Randomly logs users out

**Requested features**

- Add voice messaging capability
- Improve multi-server support
- Integrate end-to-end encryption
- Introduce iPad-optimized layout
- Provide more customization options


## Frequently asked questions

### Is Bigant5 free?

Bigant5 is free to download, with no in-app purchases.

### Is Mattermost free?

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

### Do Bigant5 or Mattermost have ads?

Neither Bigant5 nor Mattermost shows ads.

### Which is updated more often, Bigant5 or Mattermost?

Bigant5 ships an update every 3 months, and Mattermost every 9 days. Most recently, Bigant5 was updated on October 4, 2026 and Mattermost 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.*