# Mattermost vs Tesla One

The clearest difference is rating: Mattermost at 4.8 against Tesla One's 3.0. Mattermost also leads on review sentiment (38% vs 21%) and ratings volume (5.7K vs 310). Tesla One's advantage is iOS requirement (16.4 vs 18.0). On price, update cadence, 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.

Mattermost holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Mattermost has 5.7K ratings behind it against 310, so its average is the more settled of the two. Written reviews point the same way: 38% of Mattermost's written reviews are positive against 21% of Tesla One's.

Mattermost ships an update every 9 days, Tesla One every 6 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Mattermost | Tesla One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5.7K ratings)](https://appshunter.io/ios/app/mattermost/id1257222717/reviews)** | [3.0 (310 ratings)](https://appshunter.io/ios/app/tesla-one/id1625770308/reviews) |
| Number of ratings | **5.7K** | 310 |
| Positive reviews | **37.7% of reviews** | 21.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free | Free |
| Size | 94 MB | 274 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mattermost, Inc.](https://appshunter.io/developer/654282837) | [Tesla, Inc.](https://appshunter.io/developer/582007916) |

## 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


### Tesla One

[App page](https://appshunter.io/ios/app/tesla-one/id1625770308)

This app is designed exclusively for Tesla employees, certified installers, and partners to manage daily operations, prepare, install, and commission Tesla products. It offers features for customer education, support, and device configuration.

**Highlights:** Manage daily operations, Customer education and support, Prepare, install, and commission, Manage WiFi settings, Device configuration, Installer training videos

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

**In-app purchases:** none

**What reviewers like**

- ✅ Seamless commissioning experience for wall connectors
- 👍 User-friendly interface once login method is understood
- 🎓 Excellent installer training videos and educational content
- 🔧 Ability to manage WiFi settings and device configuration
- ⚡ Works flawlessly on Android devices

**What reviewers complain about**

- 🐛 Frequent app freezing and crashes
- ❌ Non-functional for regular consumers/homeowners
- 🔐 Confusing login process and unclear authentication requirements
- 📱 Significant iOS/iPhone compatibility issues
- ⚠️ Removed web interface forcing mandatory app usage

**Reported bugs**

- App freezes on Face ID authentication screen
- Crashes when scanning QR codes or barcodes
- Unable to access jobs/equipment on install screen (iPhone)
- App fails to connect to Powerwalls and wall connectors
- Barcode scanning functionality unreliable

**Requested features**

- Restore web interface for direct IP address access
- Offline mode for clocking in/out without WiFi
- Remove location permission requirement for time punch
- Simplify login process with clearer instructions
- Add troubleshooting video content


## Frequently asked questions

### Is Mattermost free?

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

### Is Tesla One free?

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

### Which has better reviews, Mattermost or Tesla One?

Mattermost is rated higher. Mattermost averages 4.8 out of 5 from 5.7K ratings, while Tesla One averages 3.0 from 310 ratings.

### Do Mattermost or Tesla One have ads?

Neither Mattermost nor Tesla One shows ads.

### Which is updated more often, Mattermost or Tesla One?

Mattermost ships an update every 9 days, and Tesla One every 6 days. Most recently, Mattermost was updated on October 29, 2026 and Tesla One on October 30, 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.*