# Mattermost vs Pumble

Mattermost and Pumble both sit at 4.8 stars, but that hides the real split: 55% of Pumble's written reviews are positive against 38% of Mattermost's. Pumble also leads on iOS requirement (15.0 vs 18.0). Mattermost's advantage is ratings volume (5.7K vs 1.8K). On price, rating, update cadence and ads 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 — 4.8 for Mattermost against 4.7 for Pumble. Both are backed by a comparable volume of ratings — 5.7K and 1.8K respectively. Written reviews are what separate them: 38% of Mattermost's written reviews are positive against 55% of Pumble's.

Mattermost ships an update every 9 days, Pumble fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mattermost | Pumble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5.7K ratings)](https://appshunter.io/ios/app/mattermost/id1257222717/reviews)** | [4.7 (1.8K ratings)](https://appshunter.io/ios/app/pumble/id1536136725/reviews) |
| Number of ratings | **5.7K** | 1.8K |
| Positive reviews | 37.7% of reviews | **55.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 94 MB | 132 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mattermost, Inc.](https://appshunter.io/developer/654282837) | [CAKE.com](https://appshunter.io/developer/1736462635) |

## What reviewers say

### 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


### Pumble

[App page](https://appshunter.io/ios/app/pumble/id1536136725)

This app facilitates team communication through organized chat, channels, and video meetings. It offers unlimited message history and file sharing, allowing businesses to keep all work discussions in one centralized location. Work from anywhere with cross-platform compatibility.

**Highlights:** Organized team chat, Project and team channels, Built-in video meetings, File sharing, Searchable message history, Cross-platform support

**Features:** Siri integration, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent Slack alternative
- 👍 Easy to use and organize
- 💡 Great for small businesses and startups
- 🚀 Reliable and straightforward
- 👍 Simple and less cluttered than other apps

**What reviewers complain about**

- 🐛 Bugs and glitches (app crashes, login issues, unable to send files/screenshots)
- 👎 Not user-friendly (confusing navigation, unable to scan conversations)
- 🐛 Slow notifications and app responsiveness
- 🔒 Privacy concerns (sending fake messages to email)
- 👎 Lacking features compared to competitors (no landscape mode, no read receipts, limited customization)

**Reported bugs**

- Login issues and unable to access previous conversations
- Inability to send files, screenshots, and images on mobile
- Randomly deleting or restoring messages while typing
- Lack of support for Chinese characters
- Incompatibility with older devices

**Requested features**

- Add a 'catch-up' feature like Slack
- Implement a 'message seen' option
- Allow users to create and use custom stickers
- Improve iPad and tablet support
- Add more customization options for workspace settings


## Frequently asked questions

### Is Mattermost free?

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

### Is Pumble free?

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

### Which has better reviews, Mattermost or Pumble?

Mattermost is rated higher. Mattermost averages 4.8 out of 5 from 5.7K ratings, while Pumble averages 4.7 from 1.8K ratings.

### Do Mattermost or Pumble have ads?

Neither Mattermost nor Pumble shows ads.

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

Mattermost ships an update every 9 days, and Pumble fortnightly. Most recently, Mattermost was updated on November 2, 2026 and Pumble on November 3, 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.*