Comparison

Mattermost vs P1 ChatOps

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mattermost

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
Read full description

Requires Mattermost Server v11.7.0+. Older servers may not be able to connect or have unexpected behavior. ------- Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. The platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. - Securely share messages, files, and links across from your preferred mobile devices. - Start 1:1 and group voice calls with a single click without leaving Mattermost. - Keep critical workflows moving forward with Playbook. - Get the message out without having to manage every endpoint with Enterprise Mobility Management (AppConfig) support. - Private mobility with ID-only push notifications to keep sensitive data protected while keeping stakeholders informed. To use this app, you need a URL for a Mattermost server. ------- Deploy your own server: https://docs.mattermost.com/guides/deployment.html Terms of Service: https://mattermost.com/terms-of-service/ Contribute to the project: https://github.com/mattermost/mattermost-mobile

About

P1 ChatOps

This secure chat application facilitates mission execution for government customers. It requires an invitation to connect to specific servers and adherence to cybersecurity policies.

Highlights
  • Secure chat
  • Collaboration capabilities
  • Mission execution support
  • Platform One integration
  • Mattermost powered
Features
Read full description

P1 ChatOps is the certified mobile application for Platform One (P1) and its customers. In conjunction with Mattermost, P1 ChatOps provides secure chat and collaboration capabilities for mission execution. The application is only intended for P1 customers. Contact your organization’s onboarding supervisor for instructions to connect to one of P1’s chat servers. Interested in becoming a customer? Learn more at https://p1.dso.mil. All users must abide by DoD and service/agency cybersecurity policy.

Screenshots

Mattermost4 screens
P1 ChatOps4 screens

Verdict

The call

The clearest difference is rating: Mattermost at 4.8 against P1 ChatOps's 2.1. Mattermost also leads on update cadence (every 8 days vs every 4 months) and review sentiment (38% vs 8%). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Mattermost holds the better App Store score, 4.8 against 2.1. That said, the two scores are not equally well evidenced: Mattermost has 5.6K ratings behind it against 21, 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 8% of P1 ChatOps's.

UpkeepUpdate frequency

Mattermost ships an update every 8 days, P1 ChatOps every 4 months. The most recent releases landed on September 25, 2026 and August 3, 2026 respectively.

Scorecard4 real differences · 6 level
Mattermost versus P1 ChatOps: the parameters behind the verdict, then further details
ParameterMattermostP1 ChatOps
PriceFreeFree
Rating4.8 (5.6K ratings) — better2.1 (21 ratings)
Positive reviews37.6% of reviews — better8.3% of reviews
Number of ratings5.6K — better21
Update frequencyEvery 8 days — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size93 MB90 MB
Age rating4+4+
DeveloperMattermost, Inc.USAF-BESPIN

Customer experience

Mattermost

All ratings5,643 ratings
Positive94.7%
Neutral1.7%
Negative3.6%
Written reviews497 reviews
Positive37.6%
Neutral15.1%
Negative47.3%

P1 ChatOps

All ratings13 ratings
Positive30.8%
Neutral0.0%
Negative69.2%
Written reviews12 reviews
Positive8.3%
Neutral0.0%
Negative91.7%

Bugs and requests

Mattermost

Reported bugs

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

Requested features

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

P1 ChatOps

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mattermost

No in-app purchases

None

P1 ChatOps

No in-app purchases

Questions

Is Mattermost free?
Mattermost is free to download, with no in-app purchases.
Is P1 ChatOps free?
P1 ChatOps is free to download, with no in-app purchases.
Which has better reviews, Mattermost or P1 ChatOps?
Mattermost is rated higher. Mattermost averages 4.8 out of 5 from 5.6K ratings, while P1 ChatOps averages 2.1 from 21 ratings.
Do Mattermost or P1 ChatOps have ads?
Neither Mattermost nor P1 ChatOps shows ads.
Which is updated more often, Mattermost or P1 ChatOps?
Mattermost ships an update every 8 days, and P1 ChatOps every 4 months. Most recently, Mattermost was updated on September 25, 2026 and P1 ChatOps on August 3, 2026.

Other comparisons